A niacinamide-containing moisturizing skin lightening composition and method of making the same
By combining niacinamide with specific plant extracts and compounds, a moisturizing and brightening composition was prepared to solve the problem of dull and lackluster skin, achieving significant brightening and moisturizing effects, and improving skin radiance and moisture content.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- RENHE GLOBAL (SHANGHAI) GRAND HEALTH RESEARCH INSTITUTE CO LTD
- Filing Date
- 2023-12-05
- Publication Date
- 2026-07-14
AI Technical Summary
Existing skincare products are insufficient to effectively improve dull and lackluster skin caused by living environment, sun exposure, irregular lifestyle, and natural aging. There is a lack of products on the market that can significantly brighten skin tone.
By combining niacinamide with specific plant extracts and compounds, including glycerin, PEG/PPG-17/6 copolymer, and p-hydroxyacetophenone, a moisturizing and brightening composition containing niacinamide is prepared. Niacinamide promotes cellular energy metabolism and reduces melanin transfer, while plant extracts accelerate metabolism. Combined with sodium hyaluronate and thickeners, the composition enhances skin brightness and moisturizing effects.
It significantly improves skin brightness (L*) value, achieving a remarkable brightening effect, and achieves good moisturizing effect through multiple moisturizers. The skin brightness improvement rate is as high as 5.63%, and the skin moisture content is increased by 12.5%.
Smart Images
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Abstract
Description
Technical Field
[0001] This invention relates to the field of cosmetic technology, specifically to a moisturizing and brightening composition containing niacinamide and its preparation method. Background Technology
[0002] Various factors, including living environment, sun exposure, irregular lifestyle, and the natural aging process, can cause various skin problems, such as dullness, redness, yellowing, melanin accumulation, loss of luster, and uneven skin tone. Dull, lackluster skin makes a person look unhealthy, unclean, older, and lacking vitality.
[0003] Therefore, skincare products that brighten skin tone are becoming increasingly popular and have a very broad market prospect. Summary of the Invention
[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a moisturizing and brightening composition containing niacinamide and a method for preparing the same.
[0005] The objective of this invention is achieved through the following technical solution:
[0006] This invention provides a moisturizing and brightening composition containing niacinamide, comprising the following components in parts by weight: 3-6 parts glycerin, 1-2 parts niacinamide, 0.5-2 parts methyl propylene glycol, 0.5-1 parts PEG / PPG-17 / 6 copolymer, 0.3-0.8 parts p-hydroxyacetophenone, 0.2-0.5 parts plant extract combination, 0.1-0.4 parts capryloyl hydroxamic acid / glyceryl caprylate / propylene glycol, 0.1-0.3 parts triethanolamine, 0.1-0.2 parts allantoin, 0.1-0.3 parts xylitol glucoside / dehydrated xylitol / xylitol / water, 0.01-0.05 parts sodium hyaluronate, 0.1-0.4 parts thickener, 0.02-0.05 parts chelating agent, and water to a total of 100 parts.
[0007] As a preferred embodiment, the plant extract composition includes Centella asiatica extract, Polygonum cuspidatum root extract, Scutellaria baicalensis root extract, tea extract, Glycyrrhiza glabra root extract, Chamomile extract, and Rosmarinus officinalis leaf extract.
[0008] As a preferred embodiment, the weight ratio of the Centella asiatica extract, Polygonum cuspidatum root extract, Scutellaria baicalensis root extract, tea extract, Glycyrrhiza glabra root extract, Chamomile extract, and Rosmarinus officinalis leaf extract is 5:2:2:1:1:0.5:0.5.
[0009] As a preferred embodiment, the sodium hyaluronate includes low molecular weight sodium hyaluronate and medium molecular weight sodium hyaluronate;
[0010] The low molecular weight sodium hyaluronate has a molecular weight of 1000-2000 Daltons, and the medium molecular weight sodium hyaluronate has a molecular weight of 8000-10000 Daltons.
[0011] As a preferred embodiment, the weight ratio of the low molecular weight sodium hyaluronate to the medium molecular weight sodium hyaluronate is 2:1.
[0012] As a preferred embodiment, the thickener is selected from carbomer and xanthan gum.
[0013] As a preferred embodiment, the weight ratio of carbomer to xanthan gum is 0.1-0.3:0.02-0.05.
[0014] As a preferred embodiment, the chelating agent is selected from disodium EDTA.
[0015] As a preferred embodiment, the following components are included in parts by weight: 5 parts glycerin, 1 part nicotinamide, 1 part methyl propylene glycol, 0.8 parts PEG / PPG-17 / 6 copolymer, 0.5 parts p-hydroxyacetophenone, 0.3 parts butylene glycol / water / Centella asiatica extract / Polygonum cuspidatum root extract / Scutellaria baicalensis root extract / Tea leaf extract / Glycyrrhiza glabra root extract / Chamomile extract / Rosemary leaf extract, 0.3 parts capryloyl hydroxamic acid / glyceryl caprylate / propylene glycol, 0.2 parts triethanolamine, 0.1 parts allantoin, 0.1 parts xylitol glucoside / dehydrated xylitol / xylitol / water, 0.02 parts low molecular weight sodium hyaluronate, 0.01 parts medium molecular weight sodium hyaluronate, 0.2 parts carbomer, 0.03 parts xanthan gum, 0.05 parts disodium EDTA, and 90.19 parts water.
[0016] The present invention also provides a method for preparing the aforementioned niacinamide-containing moisturizing and brightening composition, comprising the following steps: mixing the components evenly according to the weight ratio to obtain the final product.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] This invention significantly improves the skin's brightness (L*) value by using a combination of niacinamide, butylene glycol, water, centella asiatica extract, polygonum cuspidatum root extract, scutellaria baicalensis root extract, tea extract, licorice root extract, chamomile extract, rosemary leaf extract, capryloyl hydroxamic acid, glyceryl caprylate, propylene glycol, xylitol glucoside, dehydrated xylitol, xylitol, and water, achieving a very significant skin brightening effect.
[0019] This invention also achieves excellent moisturizing effects by adding a variety of moisturizers. Detailed Implementation
[0020] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.
[0021] The terms "preferred," "more preferably," and "more suitable" used in this invention refer to embodiments of the invention that provide certain beneficial effects under certain circumstances. However, other embodiments may also be preferred under the same or other circumstances. Furthermore, the description of one or more preferred embodiments does not imply that other embodiments are unavailable, nor is it intended to exclude other embodiments from the scope of this invention.
[0022] It should be understood that, except in any operational instance or otherwise indicated, all figures representing the amounts of ingredients used, for example, in the specification and claims, should be understood to be modified in all cases by the term "about". Therefore, unless otherwise stated, the numerical parameters set forth in the following specification and appended claims are approximations varying with the desired performance to be obtained according to the invention. It is not at all an attempt to limit the application of the doctrine of equivalents to the scope of the claims; each numerical parameter should be interpreted at least according to the number of significant figures reported and by applying ordinary rounding techniques.
[0023] Although the numerical ranges and parameters illustrating the broad scope of the invention are approximate, the values listed in the specific examples are reported as precisely as possible. However, any numerical value inherently contains some error that is necessarily caused by the standard deviation found in their respective test measurements.
[0024] The following examples provide a moisturizing and brightening composition containing niacinamide, comprising the following components in parts by weight: 3-6 parts glycerin, 1-2 parts niacinamide, 0.5-2 parts methyl propylene glycol, 0.5-1 part PEG / PPG-17 / 6 copolymer, 0.3-0.8 parts p-hydroxyacetophenone, butylene glycol / water / Centella asiatica extract / Polygonum cuspidatum root extract / Scutellaria baicalensis root extract / Tea leaf extract / Glycyrrhiza glabra root extract / Chamomile extract / Rosemary leaf extract Take 0.2-0.5 parts of the following ingredients: 0.1-0.4 parts of capryloyl hydroxamic acid / glyceryl caprylate / propylene glycol; 0.1-0.3 parts of triethanolamine; 0.1-0.2 parts of allantoin; 0.1-0.3 parts of xylitol glucoside / dehydrated xylitol / xylitol / water; 0.01-0.05 parts of sodium hyaluronate; 0.1-0.3 parts of carbomer; 0.02-0.05 parts of xanthan gum; 0.02-0.05 parts of disodium EDTA; and add water to a total of 100 parts.
[0025] In one specific embodiment, the sodium hyaluronate comprises low molecular weight sodium hyaluronate with a molecular weight of 1000-2000 Daltons and medium molecular weight sodium hyaluronate with a molecular weight of 8000-10000 Daltons, with a weight ratio of 2:1.
[0026] The niacinamide described in this invention, also known as vitamin B3, promotes cellular energy metabolism and is a necessary component for lipid metabolism, tissue respiration oxidation, and glycogen breakdown. A deficiency in niacinamide can affect normal cellular respiration and metabolism, leading to pellagra. Niacinamide can act on existing melanin, reducing its transfer to surface cells; accelerate metabolism, promoting the shedding of melanin-containing keratinocytes; and promote the synthesis of epidermal proteins, improving skin texture.
[0027] The butylene glycol / water / Centella asiatica extract / Polygonum cuspidatum root extract / Scutellaria baicalensis root extract / tea extract / Glycyrrhiza glabra root extract / Chamomile extract / Rosemary leaf extract refers to a raw material composed of butylene glycol, water, Centella asiatica extract, Polygonum cuspidatum root extract, Scutellaria baicalensis root extract, tea extract, Glycyrrhiza glabra root extract, Chamomile extract, and Rosemary leaf extract, wherein the weight ratio of Centella asiatica extract, Polygonum cuspidatum root extract, Scutellaria baicalensis root extract, tea extract, Glycyrrhiza glabra root extract, Chamomile extract, and Rosemary leaf extract is 5:2:2:1:1:0.5:0.5. This raw material is a commercially available product, product name CalmYang Pro.
[0028] The term "capryloyl hydroxamic acid / glyceryl caprylate / propylene glycol" refers to a raw material composed of capryloyl hydroxamic acid, glyceryl caprylate, and propylene glycol, which is a commercially available product.
[0029] The term "xylitol glucoside / dehydrated xylitol / xylitol / water" refers to a raw material composed of xylitol glucoside, dehydrated xylitol, xylitol, and water, and is a commercially available product.
[0030] In the following embodiments of the present invention, all components used are commercially available raw materials obtained through purchase.
[0031] In the following embodiments, the preparation of the niacinamide-containing moisturizing and brightening composition can be carried out using conventional methods, and the present invention does not impose any particular limitations.
[0032] Example 1
[0033] This embodiment provides a moisturizing and brightening composition containing niacinamide, comprising the following components in parts by weight: 5 parts glycerin, 1 part niacinamide, 1 part methyl propylene glycol, 0.8 parts PEG / PPG-17 / 6 copolymer, 0.5 parts p-hydroxyacetophenone, 0.3 parts butylene glycol / water / Centella asiatica extract / Polygonum cuspidatum root extract / Scutellaria baicalensis root extract / Tea leaf extract / Glycyrrhiza glabra root extract / Chamomile extract / Rosemary leaf extract, and capryloyl hydroxamic acid / glycerin. The composition includes: 0.3 parts caprylate / propylene glycol, 0.2 parts triethanolamine, 0.1 parts allantoin, 0.1 parts xylitol glucoside / dehydrated xylitol / xylitol / water, 0.02 parts low molecular weight sodium hyaluronate (1000-2000 Daltons), 0.01 parts medium molecular weight sodium hyaluronate (8000-10000 Daltons), 0.2 parts carbomer, 0.03 parts xanthan gum, 0.05 parts disodium EDTA, and 90.19 parts water. The names of each component are shown in Table 1 below.
[0034] Table 1
[0035]
[0036]
[0037] Comparative Example 1
[0038] This comparative example provides a moisturizing and brightening composition containing niacinamide. The composition and weight ratio of each raw material are shown in Table 2. Compared with Example 1, the only difference is that the niacinamide content is 1.3 parts, and butylene glycol / water / centella asiatica extract / Polygonum cuspidatum root extract / Scutellaria baicalensis root extract / tea extract / licorice root extract / chamomile extract / rosemary leaf extract are not added.
[0039] Comparative Example 2
[0040] This comparative example provides a moisturizing and brightening composition containing niacinamide. The composition and weight ratio of each raw material are shown in Table 2. Compared with Example 1, the only difference is that the niacinamide content is 1.3 parts, and no capryloyl hydroxamic acid / glyceryl caprylate / propylene glycol is added.
[0041] Comparative Example 3
[0042] This comparative example provides a moisturizing and brightening composition containing niacinamide. The composition and weight ratio of each raw material are shown in Table 2. Compared with Example 1, the only difference is that the niacinamide content is 1.1 parts, and xylitol glucoside / dehydrated xylitol / xylitol / water are not added.
[0043] Comparative Example 4
[0044] This comparative example provides a moisturizing and brightening composition containing niacinamide. The composition and weight ratio of each raw material are shown in Table 2. Compared with Example 1, the only difference is that the content of low molecular weight sodium hyaluronate with a molecular weight of 1000-2000 Daltons is 0.03 parts, and medium molecular weight sodium hyaluronate with a molecular weight of 8000-10000 Daltons is not added.
[0045] Comparative Example 5
[0046] This comparative example provides a moisturizing and brightening composition containing niacinamide. The composition and weight ratio of each raw material are shown in Table 2. Compared with Example 1, the only difference is that the content of low molecular weight sodium hyaluronate with a molecular weight of 1000-2000 Daltons is 0.01 parts, and the content of medium molecular weight sodium hyaluronate with a molecular weight of 8000-10000 Daltons is 0.02 parts.
[0047] Table 2
[0048]
[0049] Efficacy verification:
[0050] The compositions prepared in Example 1 and Comparative Examples 1-5 were used as test samples, and recruited eligible subjects (healthy women aged 24-45 years) were selected as test subjects. The subjects were divided into different test groups. Each subject applied an appropriate amount of the test sample to their face twice daily, morning and evening, for 28 consecutive days. Skin brightness (L*) values were measured using a CK skin analyzer (Germany) before (day 0) and after (day 28). A higher L* value indicates a better skin-brightening effect.
[0051] The measured L* values were used to calculate the skin brightness L* value improvement rate according to the formula: (L* value after use - L* value before use) / L* value before use * 100%. The results are shown in Table 3 below.
[0052] Table 3
[0053] Test Group L* Value Improvement Rate (%) Example 1 5.63％ Comparative Example 1 3.28％ Comparative Example 2 3.72％ Comparative Example 3 3.44％ Comparative Example 4 4.79％ Comparative Example 5 4.45％
[0054] As shown in Table 3, the composition prepared in Example 1, when used as the test sample, resulted in a 5.63% increase in skin brightness (L*) after 28 days of use compared to before use, demonstrating a significant skin brightening effect. Comparing Example 1 with Comparative Examples 1-3, it is evident that the combination of niacinamide with butylene glycol / water / Centella asiatica extract / Polygonum cuspidatum root extract / Scutellaria baicalensis root extract / Tea leaf extract / Glycyrrhiza glabra root extract / Chamomile extract / Rosemary leaf extract, capryloyl hydroxamic acid / glyceryl caprylate / propylene glycol, and xylitol glucoside / dehydrated xylitol / xylitol / water exhibits a synergistic effect among the components, thereby improving the skin brightness (L*) value. A comparison of Example 1 with Comparative Examples 4-5 shows that using a specific ratio of low molecular weight sodium hyaluronate (1000-2000 Daltons) and medium molecular weight sodium hyaluronate (8000-10000 Daltons) further enhances the skin brightness (L*) value.
[0055] The moisturizing effect of the composition prepared in Example 1 was tested, and the results showed that the skin moisture content increased by 12.5% after 28 days of use compared with the skin moisture content before use, indicating a significant moisturizing effect.
[0056] Furthermore, the results of human trials of the compositions prepared in the various embodiments and comparative examples of the present invention showed that the skin reaction was grade 0 and no adverse reactions occurred during the use by the subjects.
[0057] This invention has many specific applications, and the above description is only a preferred embodiment. It should be noted that the above embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this invention. For those skilled in the art, several improvements can be made without departing from the principle of this invention, and these improvements should also be considered within the scope of protection of this invention.
Claims
1. A moisturizing and brightening composition containing niacinamide, characterized in that, The product comprises the following components in parts by weight: 3-6 parts glycerin, 1-2 parts nicotinamide, 0.5-2 parts methyl propylene glycol, 0.5-1 part PEG / PPG-17 / 6 copolymer, 0.3-0.8 parts p-hydroxyacetophenone, 0.2-0.5 parts plant extract blend, 0.1-0.4 parts capryloyl hydroxamic acid / glyceryl caprylate / propylene glycol, 0.1-0.3 parts triethanolamine, 0.1-0.2 parts allantoin, 0.1-0.3 parts xylitol glucoside / dehydrated xylitol / xylitol / water, 0.01-0.05 parts sodium hyaluronate, 0.1-0.4 parts thickener, 0.02-0.05 parts chelating agent, and water to a total of 100 parts. The plant extract composition includes Centella asiatica extract, Polygonum cuspidatum root extract, Scutellaria baicalensis root extract, tea extract, Glycyrrhiza glabra root extract, Matricaria chamomilla flower extract, and Rosmarinus officinalis leaf extract; the product name of the plant extract composition is CalmYang Pro; The weight ratio of the Centella asiatica extract, Polygonum cuspidatum root extract, Scutellaria baicalensis root extract, tea extract, Glycyrrhiza glabra root extract, Chamomile extract, and Rosmarinus officinalis leaf extract is 5:2:2:1:1:0.5:0.
5. The sodium hyaluronate includes low molecular weight sodium hyaluronate and medium molecular weight sodium hyaluronate; The low molecular weight sodium hyaluronate has a molecular weight of 1000-2000 Daltons, and the medium molecular weight sodium hyaluronate has a molecular weight of 8000-10000 Daltons. The weight ratio of the low molecular weight sodium hyaluronate to the medium molecular weight sodium hyaluronate is 2:
1.
2. The moisturizing and brightening composition containing niacinamide according to claim 1, characterized in that, The thickener is selected from carbomer and xanthan gum.
3. The moisturizing and brightening composition containing niacinamide according to claim 2, characterized in that, The weight ratio of carbomer to xanthan gum is 0.1-0.3:0.02-0.
05.
4. The moisturizing and brightening composition containing niacinamide according to claim 1, characterized in that, The chelating agent is selected from disodium EDTA.
5. The moisturizing and brightening composition containing niacinamide according to claim 1, characterized in that, The product comprises the following components in parts by weight: 5 parts glycerin, 1 part nicotinamide, 1 part methyl propylene glycol, 0.8 parts PEG / PPG-17 / 6 copolymer, 0.5 parts p-hydroxyacetophenone, 0.3 parts butylene glycol / water / Centella asiatica extract / Polygonum cuspidatum root extract / Scutellaria baicalensis root extract / Tea leaf extract / Glycyrrhiza glabra root extract / Chamomile extract / Rosemary leaf extract, 0.3 parts capryloyl hydroxamic acid / glyceryl caprylate / propylene glycol, 0.2 parts triethanolamine, 0.1 parts allantoin, 0.1 parts xylitol glucoside / dehydrated xylitol / xylitol / water, 0.02 parts low molecular weight sodium hyaluronate, 0.01 parts medium molecular weight sodium hyaluronate, 0.2 parts carbomer, 0.03 parts xanthan gum, 0.05 parts disodium EDTA, and 90.19 parts water.
6. A method for preparing a moisturizing and brightening composition containing niacinamide according to claim 1, characterized in that, Includes the following steps: Mix the components evenly according to their weight proportions to obtain the final product.