Development of Novel Cosmetic Base Using Sterol Surfactant. II. Solubilizing of Sparingly Soluble Ultraviolet Ray Absorbers

The conversation discusses the lack of public information on the chemical structure of PP405, a hair loss treatment, and the challenges of synthesizing it without a patent. It also explores a patent related to hydrogen-based topical formulations for reducing oxidative stress and inflammation.

The user is experiencing scalp irritation from using RU58841 with a 70% ethanol and 30% propylene glycol vehicle and is considering switching to a less irritating vehicle, such as 30% ethanol with 70% squalane or emu oil. They are seeking feedback on the effectiveness and irritation levels of these alternative carriers.

The user is seeking alternatives to propylene glycol and glycerin for mixing with RU58841 due to allergies and greasiness. Suggestions include reducing glycerin and considering stemoxydine as a solvent.

The conversation discusses using Rogain foam as a solvent for topical finasteride due to an allergy to propylene glycol. The foam's ingredients, including alcohol SD 40B, are considered suitable for dissolving finasteride for easier application without skin irritation.

The user is seeking an alternative solvent for pyrilutamide due to skin irritation from ethanol and propylene glycol. They experienced similar issues with topical minoxidil.

Topical finasteride in a liposomal formulation reduces systemic absorption compared to ethanol solutions. The user is seeking sources for such products, noting that popular options like morr-f are not liposomal.