Skin care composition comprising acetylated hyaluronic acid with degree of acetylation quantified by 2D-MR
US11766393B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Aug 11, 2021 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Aug 11, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/782
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A skin care composition comprising low molecular weight acetylated hyaluronic acid or its sodium salt having a weight average molecular weight less than 50 kDa, and a degree of acetylation of at least 3.6 is useful in the treatment of the visible effects of age on human skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.