Compositions for improving skin conditions comprising veratric acid or acceptable salt thereof as an active ingredient
a technology of veratric acid and active ingredient, which is applied in the direction of biocide, drug composition, hair cosmetics, etc., can solve the problems of side effects, severe hormonal imbalance conditions, and problems in stability and safety, and achieve the effects of reducing skin wrinkles, promoting hair growth, and preventing hair loss
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example 1
Preparation of Hair Growth Agent
[0076]A hair growth agent containing varatric acid was prepared as a hydrogel base having the component and contents shown in Table 1 below. Concretely, an aqueous phase comprising purified water was dissolved by heating to 70° C., and oil phase comprising a preservative and a thickener was dissolved by heating to 70° C., thus preparing an emulsion using homixer (Tokushu Kika, Japan). Then, the emulsion was cooled to 45° C., and veratric acid was added to an amount of 0.1 and 1.0 wt % on the total weight of the composition and dispersed in the cooled emulsion, followed by cooling to 30° C. In Table 1, test groups 1 and 2 are hair growth agent containing veratric acid.
TABLE 1Content (%)ComponentTest group 1Test group 2Veratric acid0.11.0Preservative (Gramben)0.50.5Thickener (xanthan-gum)0.30.3Purified water99.198.2Total weight100100
example 2
Measurement of Effects on Hair Growth and Hair Loss Prevention of Veratric Acid
[0077]2-1. Measurement of Effects on Hair Growth and Hair Loss Prevention Under Invitro-Conditions
[0078]Human hair follicle dermal papillar cells (Application, Inc., USA) were seeded into a 6-well micro plate containing DMEM medium (Gibco, USA) with FBS at a density of 3×105 cellsper well, and then were cultured in a 5% CO2 in cubator at 37° C. for 24 hours. The next day, the cells were washed once with serum-free medium, and the medium was replaced with serum-free medium. Then, the cells were treated with 0, 10 and 100 μM of veratric acid, followed by incubating for 72 hours, after which the cells were washed once with serum-free medium, the medium was replaced with serum-free medium containing 10% MTT, and after 3 hours, the optical density (O.D.) value was measured and calculated as a percentage of control. The results are shown in FIG. 1.
[0079]As a result, veratric acid increased the proliferation of ...
example 3
Measurement of Effects of Veratric Acid on Inducing Growth Factor IGF-1
[0088]Human hair follicle dermal papillar cells (Application, Inc., USA) were seeded into a 24-well micro plate at density of 7.5×104 cellsper well, and then were cultured in a 5% CO2 incubator at 37° C. for 24 hours. Then, the medium was replaced with serum-free medium, followed by being cultured for 16 hours. Then, each well was treated with 0, 10 and 100 μM of veratric acid, after which the cells were incubated for 48 hours. Then, the cell culture media were collected.
[0089]The secretion rate of growth factor insulin-like growth factor-1 (IGF-1) was determined by measuring the amount of secretion rate of IGF-1 using Insulin-like growth factor-1 quantikine ELISA kit (DG100, R&D system, USA). The results are shown in FIG. 2.
[0090]As a result, veratric acid increased the IGF-1 secretion of human hair follicle dermal pailla cells in a concentration-dependent manner.
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