Topical skin formulation
US11648187B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2019 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Mar 15, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for applying a cosmetic composition to skin is disclosed. The method can include applying a first composition to skin that includes at least about 50% by weight of a volatile hydrocarbon, a film former, a solvent comprising an ester group, and a combination of ultraviolet A (UVA) and ultraviolet B (UVB) sunscreen agents, wherein the UVA sunscreen agent comprises 4-tert-butyl-4′-methoxydibenzoylmethane, wherein the first composition has an SPF of at least about 15 and a PFA of at least about 5, and wherein the first composition dries within two minutes after topical application to skin, and subsequently applying the cosmetic composition onto the first composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.