Composition special for repairing hair roots and preparation method thereof

Abstract

The invention relates to the technical field of cosmetics, in particular to a special composition for repairing hair roots and a preparation method of the special composition, and the special composition is prepared from the following raw materials in parts by weight: 0.5-3.0 parts of caffeine; 0.5 to 2.5 parts of red clover leaf extract; 1.0 to 4.0 parts of a saw palmetto fruit extract; 1.0 to 5.0 parts of trehalose; 0.1 to 0.5 part of ethylhexylglycerin; 1.0 to 5.0 parts of 1, 2-pentanediol; and the balance of deionized water. The hair root strengthening and repairing essence is innovatively researched and developed, the key components of the hair root strengthening and repairing essence comprise caffeine, a red clover leaf extract, a saw palmetto fruit extract and trehalose, a mild preservative and deionized water are matched, and rigorous experiments prove that the four components synergistically exert power, so that the hair root strengthening and repairing essence has the effect of strengthening and repairing hair roots. According to the composition, the hair tensile strength, the hair cuticle closure degree and the scalp microcirculation efficiency can be remarkably improved, compared with a single component, the effect of the composition is improved by 30%-45%, and the composition is mild in property and free of stimulation hidden danger.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, and specifically to a composition for root repair and its preparation method. Background Art

[0002] In the field of root repair of traditional hair essence, most products rely on a single ingredient and have a single function, unable to meet multiple needs such as root strengthening, cuticle repair, and scalp health. For example, although caffeine can promote scalp microcirculation, it cannot improve the opening and closing of cutin membranes or enhance the toughness of hair strands. When used alone, plant extracts can only provide limited antioxidant or hair follicle strengthening effects, and high concentrations are prone to cause irritation.

[0003] Generally, the concentration imbalance of active ingredients in traditional formulas is likely to cause scalp sensitivity, itching, and even inflammation. The pH value of some products deviates from the natural acidic environment of the scalp (pH>6.0), damaging the skin barrier function, exacerbating dryness and discomfort. Moreover, the action mechanism of a single ingredient is limited, and the repair effect only targets a single problem, unable to achieve the full-link repair of roots-hair shafts-scalps. The ingredient synergy is poor, and the effect duration is short, requiring frequent use to maintain the efficacy.

[0004] Based on this, the present invention provides a composition for root repair and its preparation method to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a composition for root repair and its preparation method. The prepared high-strength metal connector material not only has good mechanical properties but also has excellent corrosion resistance, effectively ensuring its quality and quality.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] The present invention provides a composition for root repair, which is composed of the following raw materials in parts by weight: caffeine: 0.5-3.0 parts; red clover leaf extract: 0.5-2.5 parts; saw palmetto fruit extract: 1.0-4.0 parts; trehalose: 1.0-5.0 parts; ethylhexylglycerin: 0.1-0.5 parts; 1,2-pentanediol: 1.0-5.0 parts; deionized water: the balance.

[0008] Preferably, the isoflavone content in the red clover leaf extract is ≥12%.

[0009] Preferably, the fatty acid content in the saw palmetto fruit extract is ≥85%.

[0010] Preferably, the purity of the caffeine is ≥98%.

[0011] Preferably, the trehalose is food-grade trehalose.

[0012] Based on the above composition formula for hair root repair, the present invention also provides a method for preparing a composition specifically for hair root repair, comprising the following steps:

[0013] S1. Preparation of the aqueous phase: Add caffeine and trehalose to deionized water, and stir at 60 - 70 °C and a rotation speed of 200 - 400 rpm for 10 - 20 minutes until completely dissolved;

[0014] S2. Premixing of the oil phase: Mix the red clover leaf extract, saw palmetto fruit extract with 1,2 - pentanediol, and ultrasonically disperse at 45 - 55 °C and a frequency of 40 kHz for 8 - 12 minutes;

[0015] S3. Emulsification and homogenization: Slowly add the oil phase to the aqueous phase, and perform high - speed homogenization at 3000 - 5000 rpm for 8 - 10 minutes to form a homogeneous emulsion;

[0016] S4. Cooling and adjustment: Cool the emulsion to 30 - 40 °C, add ethylhexylglycerin, stir for 10 - 15 minutes, and adjust the pH to 5.4 - 5.6 with 10% lactic acid solution;

[0017] S5. Filtration and filling: Filter the emulsion through a 0.45 μm filter membrane, then fill with nitrogen and seal, and store in a light - proof container.

[0018] Preferably, in step S3, the homogenizer is a high - shear homogenizer, and the shear rate is 4000 - 5000 rpm.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The present invention innovatively develops a hair root repair essence. Its key ingredients include caffeine, red clover leaf extract, saw palmetto fruit extract, and trehalose, together with mild preservatives and deionized water. Through rigorous experiments, it is confirmed that these four ingredients work together to significantly improve the tensile strength of hair, the closure of hair cuticles, and the efficiency of scalp microcirculation. Compared with single ingredients, the effect of this composition is improved by 30% - 45%, and it is mild in nature without potential irritation risks. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0022] I. Materials:

[0023] In the present invention, the composition formulas for hair root repair that are not described are all commercially available;

[0024] The present invention provides a composition specifically for hair root repair, which is composed of the following raw materials in parts by weight: caffeine: 0.5 - 3.0 parts; red clover leaf extract: 0.5 - 2.5 parts; saw palmetto fruit extract: 1.0 - 4.0 parts; trehalose: 1.0 - 5.0 parts; ethylhexylglycerin: 0.1 - 0.5 parts; 1,2 - pentanediol: 1.0 - 5.0 parts; deionized water: the balance.

[0025] Among them, it should be noted that the isoflavone content in the red clover leaf extract is ≥12%.

[0026] Among them, it should also be noted that the fatty acid content in the saw palmetto fruit extract is ≥85%.

[0027] Among them, it should also be noted that the purity of caffeine is ≥98%.

[0028] Among them, it should also be noted that the trehalose is food - grade trehalose.

[0029] II. Process:

[0030] Based on the above - mentioned composition formula for hair root repair, the present invention also proposes a preparation method for a composition specifically for hair root repair. Specifically, it includes the following steps:

[0031] S1. Aqueous phase preparation: Add caffeine and trehalose to deionized water, and stir at 60 - 70°C and a rotation speed of 200 - 400 rpm for 10 - 20 minutes until completely dissolved;

[0032] S2. Oil phase premixing: Mix the red clover leaf extract, saw palmetto fruit extract and 1,2 - pentanediol, and ultrasonically disperse at 45 - 55°C and a frequency of 40 kHz for 8 - 12 minutes;

[0033] S3. Emulsification and homogenization: Slowly add the oil phase to the aqueous phase, and perform high - speed homogenization treatment at 3000 - 5000 rpm for 8 - 10 minutes to form a homogeneous emulsion;

[0034] S4. Cooling and adjustment: Cool the emulsion to 30 - 40°C, add ethylhexylglycerin, stir for 10 - 15 minutes, and adjust the pH to 5.4 - 5.6 with 10% lactic acid solution;

[0035] S5. Filtration and filling: Filter the emulsion through a 0.45μm filter membrane, then fill with nitrogen and seal, and store in a light - proof container.

[0036] Among them, it should be noted that in step S3, the homogenizer is a high - shear homogenizer, and the shear rate is 4000 - 5000 rpm.

[0037] Example 1. In this example, a composition for hair root repair was prepared with the following components, as shown in Table 1:

[0038] Table 1 Parameter Table of Material Components of the Composition for Hair Root Repair in Example 1

[0039] Component Concentration Caffeine 1.5 parts Red clover leaf extract 1.2 parts Saw palmetto fruit extract 2.5 parts Trehalose 3.0 parts Ethylhexylglycerin 0.3 part 1,2-Pentanediol 3.0 parts Deionized water The balance

[0040] In this example, the preparation process includes the following steps:

[0041] Preparation of aqueous phase: Caffeine and trehalose were added to deionized water at 65 °C and stirred at 300 rpm for 15 minutes;

[0042] Premixing of oil phase: Red clover and saw palmetto fruit extract were mixed with 1,2 - pentanediol and ultrasonically dispersed at 50 °C for 10 minutes (40 kHz);

[0043] Emulsification and homogenization: The oil phase was added to the aqueous phase and homogenized at 4000 rpm for 8 minutes;

[0044] Cooling and adjustment: Cooled to 35 °C, ethylhexylglycerin was added, and the pH was adjusted to 5.5;

[0045] Filtration and filling: Filtered through a 0.45 μm filter membrane and then filled with nitrogen and sealed.

[0046] Example 2. In this example, the amount of caffeine was 3.0 parts, and the others were the same as in Example 1;

[0047] Example 3. In this example, the amount of red clover leaf extract was 2.5 parts, and the others were the same as in Example 1;

[0048] Example 4. In this example, the amount of saw palmetto fruit extract was 4.0 parts, and the others were the same as in Example 1;

[0049] Example 5. In this example, the amount of trehalose was 5.0 parts, and the others were the same as in Example 1;

[0050] The parameter of the example material components is shown in Table 2:

[0051] Table 2 Parameter Table of Material Components in Examples 2 to 5

[0052] Component (parts) Example 1 Example 2 Example 3 Example 4 Example 5 Caffeine 1.5 3.0 1.5 1.5 1.5 Red clover leaf 1.2 1.2 2.5 1.2 1.2 Saw palmetto fruit 2.5 2.5 2.5 4.0 2.5 Trehalose 3.0 3.0 3.0 3.0 5.0 Other components Same as Example 1 Same as Example 1 Same as Example 1 Same as Example 1 Same as Example 1

[0053] Comparative Example 1. In this comparative example, the amount of caffeine was 0.3 parts, lower than the lower limit of the claim;

[0054] Comparative Example 2. In this comparative example, the amount of red clover leaf extract was 3.0 parts, exceeding the upper limit of the claim;

[0055] Comparative Example 3. In this comparative example, the amount of saw palmetto fruit extract was 0.8 parts, lower than the lower limit of the claim;

[0056] Comparative Example 4. In this comparative example, the trehalose is 6.0 parts, exceeding the upper limit of the claim;

[0057] Comparative Example 5. In this comparative example, the ethylhexylglycerin is 0.6 parts, exceeding the upper limit of the claim;

[0058] The component parameters of the comparative example materials are shown in Table 3:

[0059] Table 3 Component Parameter Table of Materials in Comparative Examples 1 to 5

[0060] Component (parts) Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Caffeine 0.3 1.5 1.5 1.5 1.5 Red clover leaf 1.2 3.0 1.2 1.2 1.2 Saw palmetto fruit 2.5 2.5 0.8 2.5 2.5 Trehalose 3.0 3.0 3.0 6.0 3.0 Ethylhexylglycerin 0.3 0.3 0.3 0.3 0.6 Other components Same as Example 1 Same as Example 1 Same as Example 1 Same as Example 1 Same as Example 1

[0061] III. Experimental Process and Performance Testing: The performance of the compositions prepared in the examples and comparative examples was tested according to the following standards. The testing methods include the following steps:

[0062] a. Hair strand tensile strength: ASTM D3822, Instron testing machine, tensile speed of 50 mm / min;

[0063] b. Cuticle closure: ISO 17918, SEM observation at 2000× magnification;

[0064] c. Scalp microcirculation: ISO 10993, detected by a laser Doppler flowmeter.

[0065] Record the experimental data. The performance data of the compositions prepared in the examples are shown in Table 4, and the performance data of the compositions prepared in the comparative examples are shown in Table 5:

[0066] Table 4 Performance Data Table of Examples

[0067]

[0068]

[0069] Table 5 Performance Data Table of Comparative Examples

[0070] Group Tensile strength (MPa) Cuticle closure (%) Microcirculation improvement rate (%) Comparative Example 1 0.85±0.07 65.5±6.0 15.2±2.1 Comparative Example 2 0.92±0.08 68.3±5.8 18.5±2.3 Comparative Example 3 0.78±0.06 60.2±5.5 12.7±1.9 Comparative Example 4 0.88±0.07 63.8±5.7 14.9±2.0 Comparative Example 5 0.70±0.05 58.4±5.3 10.3±1.5

[0071] IV. Data Analysis and Conclusion:

[0072] Combining the data in Tables 1 to 4, it can be seen that in Comparative Example 1, the caffeine is too low, and the microcirculation improvement rate is only 15.2%. In Comparative Example 2, the red clover is excessive, and the insufficient isoflavone content leads to a decrease in closure. In Comparative Example 3, the saw palmetto fruit is insufficient, and the hair follicle strengthening effect is poor. In Comparative Example 4, the trehalose is excessive, and the increased viscosity affects absorption. In Comparative Example 5, the preservative is in excess, causing scalp irritation;

[0073] Therefore, the performance of Examples 1-5 of the present invention is significantly better than that of the comparative examples, proving that when the components are within the scope of the claims: caffeine promotes microcirculation while avoiding irritation; the isoflavones in the red clover leaf extract are ≥12%, effectively antioxidizing; the fatty acids in the saw palmetto fruit extract are ≥85%, strengthening hair follicles; trehalose moisturizes and improves the toughness of hair strands.

[0074] Moreover, in Example 1 of the present invention, there are 1.5 parts of caffeine, 1.2 parts of red clover, 2.5 parts of saw palmetto fruit, and 3.0 parts of trehalose, taking into account the synergistic effects of each component; in the process, homogenization is carried out at 4000 rpm, pH is 5.5, and ultrasonic dispersion is carried out for 10 minutes to ensure the uniform stability of the components, reaching the peak values of tensile strength of 1.23 MPa, hair cuticle closure of 82.7%, and microcirculation improvement rate of 28.0%. Therefore, Example 1 is the best example of the present invention.

[0075] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0076] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not elaborate on all the details, nor do they limit the invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A composition specifically for hair root repair, characterized in that, It is composed of the following raw materials in parts by weight: caffeine: 0.5 - 3.0 parts; red clover leaf extract: 0.5 - 2.5 parts; saw palmetto fruit extract: 1.0 - 4.0 parts; trehalose: 1.0 - 5.0 parts; ethylhexylglycerin: 0.1 - 0.5 parts; 1,2 - pentanediol: 1.0 - 5.0 parts; deionized water: the balance.

2. The composition specifically for hair root repair according to claim 1, wherein, The isoflavone content in the red clover leaf extract is ≥ 12%.

3. A composition specifically for hair root repair according to claim 1, characterized in that, The fatty acid content in the saw palmetto fruit extract is ≥ 85%.

4. A composition specifically for hair root repair according to claim 1, characterized in that, The purity of the caffeine is ≥ 98%.

5. A composition specifically for hair root repair according to claim 1, characterized in that, The trehalose is food - grade trehalose.

6. The preparation method of a composition specifically for hair root repair according to any one of claims 1-5, characterized in that, It includes the following steps: S1. Preparation of the aqueous phase: Add caffeine and trehalose to deionized water, and stir at 60 - 70 °C and a rotation speed of 200 - 400 rpm for 10 - 20 minutes until completely dissolved. S2. Premixing of the oil phase: Mix the red clover leaf extract, saw palmetto fruit extract and 1,2 - pentanediol, and ultrasonically disperse at 45 - 55 °C and a frequency of 40 kHz for 8 - 12 minutes. S3. Emulsification and homogenization: Slowly add the oil phase to the aqueous phase, and perform high - speed homogenization at 3000 - 5000 rpm for 8 - 10 minutes to form a homogeneous emulsion. S4. Cooling and adjustment: Cool the emulsion to 30 - 40 °C, add ethylhexylglycerin, stir for 10 - 15 minutes, and adjust the pH to 5.4 - 5.6 with 10% lactic acid solution. S5. Filtration and filling: Filter the emulsion through a 0.45 μm filter membrane, then fill with nitrogen and seal, and store in a light - proof container.

7. A composition and a preparation method thereof specifically for hair root repair according to claim 6, characterized in that, In step S3, the homogenizer is a high - shear homogenizer, and the shear rate is 4000 - 5000 rpm.

Images