Elastin essence capable of improving toughness and elasticity of hair

Abstract

The invention provides an elastin essence capable of improving the toughness and elasticity of hair, and the elastin essence comprises the following components in percentage by weight: 0.00000005-0.05% of elastin (MW5000-10000), 0.0001-0.05% of hydrolyzed keratin (MW600), 0.0001-0.05% of hydrolyzed keratin (MW1000), 0.00005-0.05% of hydrolyzed keratin (MW1000), 0.00005-0.05% of hydrolyzed keratin (MW1000), 0.00005-0.05% The invention discloses a scalp nourishing essence, which is prepared from the following components in percentage by weight: 0.005 to 0.5 percent of hydrolyzed keratin (MW3000), 0.001 to 0.5 percent of hydrolyzed collagen (MW1000-2000), 0.000005 to 0.1 percent of arginine / lysine polypeptide (MW2500), 0.000005 to 5 percent of small fruit coffee protein peptide (MW 500 to 1000), 0.00001 to 0.1 percent of agilawood extract, 0.005 to 0.5 percent of PEG-6 caprylic acid / caprin, 0.05 to 0.3 percent of carbomer, 0.8 percent of phenoxyethanol, 0.15 percent of ethylhexylglycerin, 0.01 to 0.08 percent of sodium hydroxide and the balance of water. The elastin and various protein peptides are combined and arranged according to the molecular weight to form hierarchical permeation, repair and elastic support on the hair epidermal layer and the hair core layer, so that the hair is repaired, and the toughness and elasticity of the hair are improved.

Description

Technical Field

[0001] The present application relates to the technical field of hair care products, and in particular to an elastin essence liquid that improves the toughness and elasticity of hair. Background Art

[0002] The elasticity and toughness of hair are natural properties of hair, so what are the elasticity and toughness of hair? Elasticity: refers to the ability of hair fibers to return to their original shape after being subjected to external forces. This ability is closely related to the internal structure of the hair. For example, the keratin fiber structure of hair is wavy, which makes it slip and return to its original shape when stretched. If the hair structure is damaged, such as the loss of hair protein, the keratin damage will lose elasticity! In addition, moisturized hair is usually more elastic than dry hair, which is closely related to the integrity of proteins and amino acids in the hair structure. Toughness: refers to the ability of hair fibers to resist breaking or permanent deformation. The toughness of hair is related to the strength of its fibers, the internal disulfide bonds and hydrogen bonds, and the diameter of the hair. The disulfide bonds of hair form a strong connection that makes the entire keratin structure stronger, thereby improving its ability to resist breaking. According to materials theory, hair goes through multiple stages during the stretching process: a) Elastic deformation: It can be completely restored after the external force is removed. At this time, the internal structure of the hair or the protein structure has not been damaged. The deformation range in this stage is generally less than 0.5%. b) Linear deformation: It cannot be completely restored after the external force is removed. The force and deformation become a linear relationship. At this time, the internal structure of the hair changes slightly, the van der Waals force, hydrogen bonds, and some salt bonds break, the protein gradually stretches, and the structure gradually changes from an alpha helix to a beta fold. c) Elastic yield point: It can be understood as the spring is completely straightened, and the peptide chain chemical bonds become the main resistance. The yield deformation of dry hair is generally 10~20%. Because of the presence of a large number of hydrogen bonds in wet hair, the yield deformation may increase to 30~40%. d) Post-yield stage: The resistance remains basically unchanged. As the hair gradually lengthens, chemical bonds such as disulfide bonds and peptide chains gradually open (the dissociation energy of disulfide bonds is lower than that of peptide bonds and CC bonds). e) Fracture: All chemical bonds connected to a certain fragile point are broken, and the hair is broken. The fracture deformation of dry hair is generally 30~40%. Because moisturized hair has a large number of hydrogen bonds to provide structural support, the fracture deformation can reach more than 100%.

[0003] In short, the elasticity of hair refers to its ability to return to its original shape, while toughness refers to its ability to resist breaking. Elasticity focuses on deformation recovery, while toughness focuses on the total amount of work done. Therefore, elasticity and toughness are both related and have their own mechanical characteristics.

[0004] In the past, because toughness is related to elasticity, we may have paid more attention to the toughness of hair when researching hair care products. In fact, in the process of daily hair care and protection, it is more scientific to pay attention to both the elasticity variable of hair and the total amount of hair toughness. Hair with both elasticity and toughness will be healthier. Therefore, it is necessary to produce an elastin serum that improves the toughness and elasticity of hair. Summary of the invention

[0005] The present application provides an elastin essence for improving the toughness and elasticity of hair, so as to solve the problem that the essence in the prior art cannot effectively nourish the scalp and improve the microenvironment, thereby achieving the purpose of nourishing the scalp, improving the microenvironment, repairing hair, and improving the toughness and elasticity of hair.

[0006] To achieve the above-mentioned purpose, the present application provides an elastin essence for improving the toughness and elasticity of hair. The components of the elastin essence include elastin (MW5000-10000) 0.00000005%-0.05%, hydrolyzed keratin (MW600) 0.0001-0.05%, hydrolyzed keratin (MW1000) 0.0001-0.05%, hydrolyzed keratin (MW3000) 0.005-0.5%, hydrolyzed collagen (MW1000-2000) 0.001-0.5%, arginine / lysine polypeptide (MW2500) 0.000005-0.1%, small fruit coffee protein peptide (MW 500-1000) 0.000005-5%, agarwood extract 0.00001-0.1%, PEG-6 Caprylic / capric glyceride 0.005-0.5%, carbomer 0.05-0.3%, phenoxyethanol 0.8%, ethylhexylglycerin 0.15%, sodium hydroxide 0.01%-0.08%, and the rest is water.

[0007] Preferably, a method for preparing an elastin essence for improving hair toughness and elasticity comprises the following steps: A: Add carbomer to the water in the reaction kettle for pre-dispersion, heat up and stir, then cool down to obtain phase A material; B: Add elastin (MW5000-10000), hydrolyzed keratin (MW600), hydrolyzed keratin (MW1000), hydrolyzed keratin (MW3000), hydrolyzed collagen (MW1000-2000), arginine / lysine polypeptide (MW2500), Arabica coffee protein peptide (MW 500-1000), agarwood extract, phenoxyethanol, and ethylhexylglycerin to water for pre-dispersion at room temperature, and stir for 30 minutes to obtain phase B material for standby use; C: When the temperature of phase A material drops to 40°C, add PEG-6 caprylic / capric glyceride to homogenize and pre-dispersed phase B material, and continue stirring for 30 minutes to obtain phase C material; D: Add sodium hydroxide to the C phase material and adjust the pH to 5.5-6.5; E: Finally, the phase C material is ultrasonicated to obtain the final essence.

[0008] Preferably, in step A, the mixture is heated to 85° C.-90° C. and stirred at the constant temperature for 30 minutes-40 minutes.

[0009] Preferably, the hydrolyzed keratin extraction process is as follows: a. First, clean and disinfect the wool; b. Soak the cleaned and disinfected wool in softener for pretreatment; c. Wash the pretreated wool again with clean water and dry it; d. Cut the dried wool into pieces; e. Acid hydrolysis reaction: first add ionized water into the stirring kettle, start stirring, then draw in pre-weighed concentrated sulfuric acid, add shredded wool according to the proportion, perform acid hydrolysis, and obtain an acid hydrolyzate; f. Neutralization reaction: After the acid hydrolysis is completed, add barium hydroxide and slowly pour it into the acid hydrolysis solution to adjust the pH value to 5.0, and continue stirring until the pH value reaches a stable value; g. Activated carbon decolorization: After cooling to 65℃-75℃, add activated carbon, stir, and filter; h. The filtrate is pumped into a sterilizer according to the ratio of hydrolyzed keratin and disodium EDTA specified in the finished product formula, and heated and sterilized. After the sterilization is completed and cooled, a preservative is added, and the mixture is packaged after being stirred evenly to obtain hydrolyzed keratin.

[0010] Beneficial effects: (1) The preparation method of the present invention is simple, and the prepared essence can nourish the scalp and improve the microenvironment. At the same time, elastin is combined with various protein peptides and arranged according to molecular weight to form hierarchical penetration, repair and elastic support in the scalp, hair cuticle layer and hair core layer, thereby repairing the hair, improving the toughness and elasticity of the hair, reducing the friction of hair combing, and improving the conditioning. The elastin emulsion used also has a scalp soothing effect, thereby achieving scalp soothing and hair scale and hair core repair.

[0011] (2) The hydrolyzed keratin added in the present invention contains a higher content of cystine / cysteine, and its amino acid composition is similar to that of hair (such as high cystine / cysteine ​​and glutamic acid content). It penetrates into the hair and builds disulfide bonds on damaged keratin bonds. Keratin improves hair strength through the disulfide bond repair mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 The present invention is a flow chart of the preparation method. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0015] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0016] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0017] See also Figure 1The present invention provides a technical solution: The present application provides an elastin essence for improving the toughness and elasticity of hair. The components of the elastin essence include elastin (MW5000-10000) 0.00000005%-0.05%, hydrolyzed keratin (MW600) 0.0001-0.05%, hydrolyzed keratin (MW1000) 0.0001-0.05%, hydrolyzed keratin (MW3000) 0.005-0.5%, hydrolyzed collagen (MW1000-2000) 0.001-0.5%, arginine / lysine polypeptide (MW2500) 0.000005-0.1%, coffee protein peptide (MW500-1000) 0.000005-5%, agarwood extract 0.00001-0.1%, PEG-6 Caprylic / capric glyceride 0.005-0.5%, carbomer 0.05-0.3%, phenoxyethanol 0.8%, ethylhexylglycerin 0.15%, sodium hydroxide 0.01%-0.08%, and the rest is water. The Coffea nigra protein peptide in the protein is obtained from coffee grounds. After molecular docking simulation of the efficacy, the protein peptide is obtained by enzymatic cleavage. Experiments have shown that Coffea nigra protein peptide + recombinant elastin has anti-inflammatory and soothing effects. The elastin is recombinant elastin, which is a protein component with hair / scalp care effects that is intelligently screened by AI. According to AI prediction, Coffea nigra protein peptide + recombinant elastin has a protective effect on the disulfide bonds of hair keratin. Other protein ingredients are compounded on the basis of the combination of Coffea nigra protein peptide + recombinant elastin to synergistically improve performance.

[0018] Embodiment 1: The components of the elastin essence include elastin (MW5000-10000) 0.00000005%, hydrolyzed keratin (MW600) 0.0001%, hydrolyzed keratin (MW1000) 0.0001%, hydrolyzed keratin (MW3000) 0.001%, hydrolyzed collagen (MW1000-2000) 0.001%, arginine / lysine polypeptide (MW2500) 0.000005%, small fruit coffee protein peptide (MW 500-1000) 0.000005%, agarwood extract 0.00001%, PEG-6 caprylic / capric glyceride 0.005%, carbomer 0.05%, phenoxyethanol 0.8%, ethylhexylglycerin 0.15%, sodium hydroxide 0.01%, and the rest is water.

[0019] In this embodiment, a method for preparing an elastin essence for improving hair toughness and elasticity comprises the following steps: A: Add carbomer to the water in the reaction kettle for pre-dispersion, heat up and stir, then cool down to obtain phase A material; B: Add elastin (MW5000-10000), hydrolyzed keratin (MW600), hydrolyzed keratin (MW1000), hydrolyzed keratin (MW3000), hydrolyzed collagen (MW1000-2000), arginine / lysine polypeptide (MW2500), Arabica coffee protein peptide (MW500-1000), agarwood extract, phenoxyethanol, and ethylhexylglycerin into water for pre-dispersion at room temperature, and stir for 30 minutes to obtain phase B material for standby use; C: When the temperature of phase A material drops to 40°C, add PEG-6 caprylic / capric glyceride to homogenize and pre-dispersed phase B material, and continue stirring for 30 minutes to obtain phase C material; D: Add sodium hydroxide to the C phase material and adjust the pH to 5.5; E: Finally, the phase C material is ultrasonicated to obtain the final essence.

[0020] In this embodiment, in step A, the mixture is heated to 85° C. and stirred at the constant temperature for 30 minutes.

[0021] In this embodiment, the hydrolyzed keratin extraction process is as follows: a. First, clean and disinfect the wool; b. Soak the cleaned and disinfected wool in softener for pretreatment; c. Wash the pretreated wool again with clean water and dry it; d. Cut the dried wool into pieces; e. Acid hydrolysis reaction: first add ionized water into the stirring kettle, start stirring, then draw in pre-weighed concentrated sulfuric acid, add shredded wool according to the proportion, perform acid hydrolysis, and obtain an acid hydrolyzate; f. Neutralization reaction: After the acid hydrolysis is completed, add barium hydroxide and slowly pour it into the acid hydrolysis solution to adjust the pH value to 5.0, and continue stirring until the pH value reaches a stable value; g. Activated carbon decolorization: After cooling to 65°C, add activated carbon, stir, and filter; h. The filtrate is pumped into a sterilizer according to the ratio of hydrolyzed keratin and disodium EDTA specified in the finished product formula, and heated and sterilized. After the sterilization is completed and cooled, a preservative is added, and the mixture is packaged after being stirred evenly to obtain hydrolyzed keratin.

[0022] Embodiment 2: The components of the elastin essence include elastin (MW5000-10000) 0.0005%, hydrolyzed keratin (MW600) 0.05%, hydrolyzed keratin (MW1000) 0.05%, hydrolyzed keratin (MW3000) 0.5%, hydrolyzed collagen (MW1000-2000) 0.5%, arginine / lysine polypeptide (MW2500) 0.1%, small fruit coffee protein peptide (MW 500-1000) 0.05%, agarwood extract 0.1%, PEG-6 caprylic / capric glyceride 0.5%, carbomer 0.3%, phenoxyethanol 0.8%, ethylhexylglycerin 0.15%, sodium hydroxide 0.08%, and the rest is water.

[0023] In this embodiment, a method for preparing an elastin essence for improving hair toughness and elasticity comprises the following steps: A: Add carbomer to the water in the reaction kettle for pre-dispersion, heat up and stir, then cool down to obtain phase A material; B: Add elastin (MW5000-10000), hydrolyzed keratin (MW600), hydrolyzed keratin (MW1000), hydrolyzed keratin (MW3000), hydrolyzed collagen (MW1000-2000), arginine / lysine polypeptide (MW2500), Arabica coffee protein peptide (MW 500-1000), agarwood extract, phenoxyethanol, and ethylhexylglycerin to water for pre-dispersion at room temperature, and stir for 30 minutes to obtain phase B material for standby use; C: When the temperature of phase A material drops to 40°C, add PEG-6 caprylic / capric glyceride to homogenize and pre-dispersed phase B material, and continue stirring for 30 minutes to obtain phase C material; D: Add sodium hydroxide to the C phase material and adjust the pH to 6.5; E: Finally, the phase C material is ultrasonicated to obtain the final essence.

[0024] In this embodiment, in step A, the mixture is heated to 90° C. and then stirred at the constant temperature for 40 minutes.

[0025] In this embodiment, the hydrolyzed keratin extraction process is as follows: a. First, clean and disinfect the wool; b. Soak the cleaned and disinfected wool in softener for pretreatment; c. Wash the pretreated wool again with clean water and dry it; d. Cut the dried wool into pieces; e. Acid hydrolysis reaction: first add ionized water into the stirring kettle, start stirring, then draw in pre-weighed concentrated sulfuric acid, add shredded wool according to the proportion, perform acid hydrolysis, and obtain an acid hydrolyzate; f. Neutralization reaction: After the acid hydrolysis is completed, add barium hydroxide and slowly pour it into the acid hydrolysis solution to adjust the pH value to 5.0, and continue stirring until the pH value reaches a stable value; g. Activated carbon decolorization: After cooling to 75°C, add activated carbon, stir, and filter; h. The filtrate is pumped into a sterilizer according to the ratio of hydrolyzed keratin and disodium EDTA specified in the finished product formula, and heated and sterilized. After the sterilization is completed and cooled, a preservative is added, and the mixture is packaged after being stirred evenly to obtain hydrolyzed keratin.

[0026] Embodiment three: The components of the elastin essence include elastin (MW5000-10000) 0.0004%, hydrolyzed keratin (MW600) 0.01%, hydrolyzed keratin (MW1000) 0.01%, hydrolyzed keratin (MW3000) 0.03%, hydrolyzed collagen (MW1000-2000) 0.01%, arginine / lysine polypeptide (MW2500) 0.02%, small fruit coffee protein peptide (MW 500-1000) 0.04%, agarwood extract 0.02%, PEG-6 caprylic / capric glyceride 0.03%, carbomer 0.1%, phenoxyethanol 0.8%, ethylhexylglycerin 0.15%, sodium hydroxide 0.02%, and the rest is water.

[0027] In this embodiment, a method for preparing an elastin essence for improving hair toughness and elasticity comprises the following steps: A: Add carbomer to the water in the reaction kettle for pre-dispersion, heat up and stir, then cool down to obtain phase A material; B: Add elastin (MW5000-10000), hydrolyzed keratin (MW600), hydrolyzed keratin (MW1000), hydrolyzed keratin (MW3000), hydrolyzed collagen (MW1000-2000), arginine / lysine polypeptide (MW2500), Arabica coffee protein peptide (MW500-1000), agarwood extract, phenoxyethanol, and ethylhexylglycerin into water for pre-dispersion at room temperature, and stir for 30 minutes to obtain phase B material for standby use; C: When the temperature of phase A material drops to 40°C, add PEG-6 caprylic / capric glyceride to homogenize and pre-dispersed phase B material, and continue stirring for 30 minutes to obtain phase C material; D: Add sodium hydroxide to the C phase material and adjust the pH to 5.6; E: Finally, the phase C material is ultrasonicated to obtain the final essence.

[0028] In this embodiment, in step A, the mixture is heated to 86° C. and stirred at the constant temperature for 32 minutes.

[0029] In this embodiment, the hydrolyzed keratin extraction process is as follows: a. First, clean and disinfect the wool; b. Soak the cleaned and disinfected wool in softener for pretreatment; c. Wash the pretreated wool again with clean water and dry it; d. Cut the dried wool into pieces; e. Acid hydrolysis reaction: first add ionized water into the stirring kettle, start stirring, then draw in pre-weighed concentrated sulfuric acid, add shredded wool according to the proportion, perform acid hydrolysis, and obtain an acid hydrolyzate; f. Neutralization reaction: After the acid hydrolysis is completed, add barium hydroxide and slowly pour it into the acid hydrolysis solution to adjust the pH value to 5.0, and continue stirring until the pH value reaches a stable value; g. Activated carbon decolorization: After cooling to 68°C, add activated carbon, stir, and filter; h. The filtrate is pumped into a sterilizer according to the ratio of hydrolyzed keratin and disodium EDTA specified in the finished product formula, and heated and sterilized. After the sterilization is completed and cooled, a preservative is added, and the mixture is packaged after being stirred evenly to obtain hydrolyzed keratin.

[0030] Embodiment 4: The components of the elastin essence include elastin (MW5000-10000) 0.0003%, hydrolyzed keratin (MW600) 0.04%, hydrolyzed keratin (MW1000) 0.04%, hydrolyzed keratin (MW3000) 0.4%, hydrolyzed collagen (MW1000-2000) 0.4%, arginine / lysine polypeptide (MW2500) 0.09%, small fruit coffee protein peptide (MW 500-1000) 0.03%, agarwood extract 0.09%, PEG-6 caprylic / capric glyceride 0.4%, carbomer 0.2%, phenoxyethanol 0.8%, ethylhexylglycerin 0.15%, sodium hydroxide 0.03%, and the rest is water.

[0031] In this embodiment, a method for preparing an elastin essence for improving hair toughness and elasticity comprises the following steps: A: Add carbomer to the water in the reaction kettle for pre-dispersion, heat up and stir, then cool down to obtain phase A material; B: Add elastin (MW5000-10000), hydrolyzed keratin (MW600), hydrolyzed keratin (MW1000), hydrolyzed keratin (MW3000), hydrolyzed collagen (MW1000-2000), arginine / lysine polypeptide (MW2500), Arabica coffee protein peptide (MW500-1000), agarwood extract, phenoxyethanol, and ethylhexylglycerin into water for pre-dispersion at room temperature, and stir for 30 minutes to obtain phase B material for standby use; C: When the temperature of phase A material drops to 40°C, add PEG-6 caprylic / capric glyceride to homogenize and pre-dispersed phase B material, and continue stirring for 30 minutes to obtain phase C material; D: Add sodium hydroxide to the C phase material and adjust the pH to 5.8; E: Finally, the phase C material is ultrasonicated to obtain the final essence.

[0032] In this embodiment, in step A, the mixture is heated to 88° C. and stirred at the constant temperature for 38 minutes.

[0033] In this embodiment, the hydrolyzed keratin extraction process is as follows: a. First, clean and disinfect the wool; b. Soak the cleaned and disinfected wool in softener for pretreatment; c. Wash the pretreated wool again with clean water and dry it; d. Cut the dried wool into pieces; e. Acid hydrolysis reaction: first add ionized water into the stirring kettle, start stirring, then draw in pre-weighed concentrated sulfuric acid, add shredded wool according to the proportion, perform acid hydrolysis, and obtain an acid hydrolyzate; f. Neutralization reaction: After the acid hydrolysis is completed, add barium hydroxide and slowly pour it into the acid hydrolysis solution to adjust the pH value to 5.0, and continue stirring until the pH value reaches a stable value; g. Activated carbon decolorization: After cooling to 72°C, add activated carbon, stir, and filter; h. The filtrate is pumped into a sterilizer according to the ratio of hydrolyzed keratin and disodium EDTA specified in the finished product formula, and heated and sterilized. After the sterilization is completed and cooled, a preservative is added, and the mixture is packaged after being stirred evenly to obtain hydrolyzed keratin.

[0034] Embodiment five: The components of the elastin essence include elastin (MW5000-10000) 0.0002%, hydrolyzed keratin (MW600) 0.02%, hydrolyzed keratin (MW1000) 0.03%, hydrolyzed keratin (MW3000) 0.09%, hydrolyzed collagen (MW1000-2000) 0.2%, arginine / lysine polypeptide (MW2500) 0.05%, small fruit coffee protein peptide (MW 500-1000) 0.02%, agarwood extract 0.07%, PEG-6 caprylic / capric glyceride 0.2%, carbomer 0.07%, phenoxyethanol 0.8%, ethylhexylglycerin 0.15%, sodium hydroxide 0.04%, and the rest is water.

[0035] In this embodiment, a method for preparing an elastin essence for improving hair toughness and elasticity comprises the following steps: A: Add carbomer to the water in the reaction kettle for pre-dispersion, heat up and stir, then cool down to obtain phase A material; B: Add elastin (MW5000-10000), hydrolyzed keratin (MW600), hydrolyzed keratin (MW1000), hydrolyzed keratin (MW3000), hydrolyzed collagen (MW1000-2000), arginine / lysine polypeptide (MW2500), Arabica coffee protein peptide (MW500-1000), agarwood extract, phenoxyethanol, and ethylhexylglycerin into water for pre-dispersion at room temperature, and stir for 30 minutes to obtain phase B material for standby use; C: When the temperature of phase A material drops to 40°C, add PEG-6 caprylic / capric glyceride to homogenize and pre-dispersed phase B material, and continue stirring for 30 minutes to obtain phase C material; D: Add sodium hydroxide to the C phase material and adjust the pH to 6.2; E: Finally, the phase C material is ultrasonicated to obtain the final essence.

[0036] In this embodiment, in step A, the mixture is heated to 88° C. and then stirred at the constant temperature for 38 minutes.

[0037] In this embodiment, the hydrolyzed keratin extraction process is as follows: a. First, clean and disinfect the wool; b. Soak the cleaned and disinfected wool in softener for pretreatment; c. Wash the pretreated wool again with clean water and dry it; d. Cut the dried wool into pieces; e. Acid hydrolysis reaction: first add ionized water into the stirring kettle, start stirring, then draw in pre-weighed concentrated sulfuric acid, add shredded wool according to the proportion, perform acid hydrolysis, and obtain an acid hydrolyzate; f. Neutralization reaction: After the acid hydrolysis is completed, add barium hydroxide and slowly pour it into the acid hydrolysis solution to adjust the pH value to 5.0, and continue stirring until the pH value reaches a stable value; g. Activated carbon decolorization: After cooling to 70°C, add activated carbon, stir, and filter; h. The filtrate is pumped into a sterilizer according to the ratio of hydrolyzed keratin and disodium EDTA specified in the finished product formula, and heated and sterilized. After the sterilization is completed and cooled, a preservative is added, and the mixture is packaged after being stirred evenly to obtain hydrolyzed keratin.

[0038] Comparative Example 1: The components of the elastin essence include, by weight, elastin (MW5000-10000) 0.0002%, hydrolyzed keratin (MW3000) 0.09%, hydrolyzed collagen (MW1000-2000) 0.2%, arginine / lysine polypeptide (MW2500) 0.05%, small fruit coffee protein peptide (MW 500-1000) 0.02%, agarwood extract 0.07%, PEG-6 caprylic / capric glyceride 0.2%, carbomer 0.07%, phenoxyethanol 0.8%, ethylhexylglycerin 0.15%, sodium hydroxide 0.04%, and the remainder is water.

[0039] Comparative Example 2: The components of the elastin essence include, by weight, 0.02% hydrolyzed keratin (MW600), 0.03% hydrolyzed keratin (MW1000), 0.09% hydrolyzed keratin (MW3000), 0.2% hydrolyzed collagen (MW1000-2000), 0.05% arginine / lysine polypeptide (MW2500), 0.07% agarwood extract, 0.2% PEG-6 caprylic / capric glyceride, 0.07% carbomer, 0.8% phenoxyethanol, 0.15% ethylhexylglycerin, 0.04% sodium hydroxide, and the remainder is water.

[0040] Experimental Example: Volunteers used the essence prepared in various embodiments of the present invention for one week. After the use, the volunteers scored the perception of reduced hair breakage. A significant reduction in hair breakage was scored as 10 points, and a slight reduction was scored as 1 point. The essence was applied to hair bundles in vitro. After the hair bundles were dried, the dry combing force was tested using an Instron universal tensile testing machine. The percentage of combing force reduction before and after application was calculated to obtain the following table:

[0041] The results show that the protein emulsion has the effect of reducing hair breakage. The comparative examples without hydrolyzed keratin (MW600) and hydrolyzed keratin (MW1000) are not as effective as the examples with hydrolyzed keratin (MW600) and hydrolyzed keratin (MW1000), indicating that small molecule hydrolyzed keratin can repair the hair core and improve the mechanical properties of hair. After the essence without elastin and coffee protein peptide is applied, the percentage of dry combing force reduction is significantly lower than that of the examples, indicating that the combination of elastin + coffee protein peptide can improve the hair conditioning performance after being applied to the essence.

[0042] In addition, the present invention also conducts an in vitro hair efficacy test to evaluate the changes in the Young's modulus of hair and elasticity and toughness related indicators before and after the application of the embodiment and the blank group. Each group uses 6 hairs with similar diameters that have been screened. The Young's modulus of the hair is tested before the sample is applied to obtain the average value of the Young's modulus before treatment. The sample is then applied, and the Young's modulus of the hair after treatment is measured again after drying. The average value of the difference between the Young's modulus after treatment and the Young's modulus before treatment is calculated. A positive value indicates that the elasticity and toughness are improved, and a negative value indicates that the elasticity and toughness are reduced. The data obtained are as follows:

[0043] The hydrolyzed keratin added in the present invention contains a higher content of cystine / cysteine, and the amino acid composition is similar to the amino acid composition of hair (such as high cystine / cysteine ​​and glutamic acid content). It penetrates into the interior of the hair and constructs disulfide bonds on the damaged keratin bonds. The keratin improves the strength of the hair through the disulfide bond repair mechanism.

[0044] In summary, the preparation method of the present invention is simple, and the prepared essence can nourish the scalp and improve the microenvironment. At the same time, elastin is combined with various protein peptides and arranged according to molecular weight to form hierarchical penetration, repair and elastic support in the hair cuticle layer and hair core layer, thereby repairing the hair and improving the toughness and elasticity of the hair.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An elastin essence for improving hair toughness and elasticity, characterized in that: The components of the elastin essence include elastin (MW5000-10000) 0.00000005%-0.05%, hydrolyzed keratin (MW600) 0.0001-0.05%, hydrolyzed keratin (MW1000) 0.0001-0.05%, hydrolyzed keratin (MW3000) 0.005-0.5%, hydrolyzed collagen (MW1000-2000) 0.001-0.5%, arginine / lysine polypeptide (MW2500) 0.000005-0.1%, Arabica coffee protein peptide (MW 500-1000) 0.000005-5%, agarwood extract 0.00001-0.1%, PEG-6 Caprylic / capric glyceride 0.005-0.5%, carbomer 0.05-0.3%, phenoxyethanol 0.8%, ethylhexylglycerin 0.15%, sodium hydroxide 0.01%-0.08%, and the rest is water.

2. A method for preparing an elastin essence for improving hair toughness and elasticity, characterized in that: Preparation method thereof The following steps are involved: A: Add carbomer to the water in the reaction kettle for pre-dispersion, heat up and stir, then cool down to obtain phase A material; B: Add elastin (MW5000-10000), hydrolyzed keratin (MW600), hydrolyzed keratin (MW1000), hydrolyzed keratin (MW3000), hydrolyzed collagen (MW1000-2000), arginine / lysine polypeptide (MW2500), Arabica coffee protein peptide (MW 500-1000), agarwood extract, phenoxyethanol, and ethylhexylglycerin to water for pre-dispersion at room temperature, and stir for 30 minutes to obtain phase B material for standby use; C: When the temperature of phase A material drops to 40°C, add PEG-6 caprylic / capric glyceride to homogenize and pre-dispersed phase B material, and continue stirring for 30 minutes to obtain phase C material; D: Add sodium hydroxide to the C phase material and adjust the pH to 5.5-6.5; E: Finally, the phase C material is ultrasonicated to obtain the final essence.

3. The method for preparing an elastin essence for improving hair toughness and elasticity according to claim 2, characterized in that: In the step A, the mixture is heated to 85° C.-90° C. and then stirred at the constant temperature for 30 minutes-40 minutes.

4. The method for preparing an elastin essence for improving hair toughness and elasticity according to claim 2, characterized in that: The hydrolyzed keratin extraction process is as follows: a. First, clean and disinfect the wool; b. Soak the cleaned and disinfected wool in softener for pretreatment; c. Wash the pretreated wool again with clean water and dry it; d. Cut the dried wool into pieces; e. Acid hydrolysis reaction: first add ionized water into the stirring kettle, start stirring, then draw in pre-weighed concentrated sulfuric acid, add shredded wool according to the proportion, perform acid hydrolysis, and obtain an acid hydrolyzate; f. Neutralization reaction: After the acid hydrolysis is completed, add barium hydroxide and slowly pour it into the acid hydrolysis solution to adjust the pH value to 5.0, and continue stirring until the pH value reaches a stable value; g. Activated carbon decolorization: After cooling to 65℃-75℃, add activated carbon, stir, and filter; h. The filtrate is pumped into a sterilizer according to the ratio of hydrolyzed keratin and disodium EDTA specified in the finished product formula, and heated and sterilized. After the sterilization is completed and cooled, a preservative is added, and the mixture is packaged after being stirred evenly to obtain hydrolyzed keratin.

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