Skin care composition
US12409119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2022 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Apr 30, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/805
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Low-pH, aqueous skin care composition, comprising: a) about 0.1% to about 10% of a hydroxycinnamic acid (HCA); b) about 0.1% to about 10% of a polar emollient; c) from about 1.5% to less than 20% of a co-solvent with a Hansen solubility parameter distance of less than 15 from the—hydroxycinnamic acid (HCA); and d) water, wherein the pH of the composition is about 5.0 or less, and wherein the composition meets at least one of the following conditions (i)-(iii): (i) the composition further contains from about 0.1% to about 10% of a vitamin B3 compound; (ii) the weight ratio between HCA and the polar emollient is from about 1:1 to about 1:10; and (iii) the composition further contains from about 0.1% to about 5% of a sensory improving ingredient selected from the group consisting of: sugar alcohols, sugar-based emulsifiers, modified sugar derivatives, and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.