Simultaneous Quantification of Dexpanthenol and Resorcinol from Hair Care Formulation Using Liquid Chromatography: Method Development and Validation

Topical finasteride may have higher systemic absorption and lower efficacy when using a Propylene Glycol/Ethanol formulation compared to the hydroxypropyl chitosan (HPCH) formulation. The safety profile of topical finasteride relies heavily on the HPCH formulation, and using standard solutions might lead to different pharmacokinetics.

The user is using 0.1% dutasteride, 1% minoxidil with 2% procapil and 0.005% caffeine in the morning, and 1% minoxidil with 2% procapil and 0.01% tretinoin at night. They are concerned about the solution vehicle's effectiveness in preventing systemic absorption and ensuring the products stay around the hair follicles.

The conversation discusses finding a PG-free solvent for dissolving RU58841 in the UK, with glycerin suggested as a potential alternative. Water is also mentioned as a possible option.

The conversation is about using distilled water as a solvent for topical finasteride to reduce systemic absorption. The user is considering avoiding ethanol and propylene glycol to achieve this.

Users discussed the effectiveness of Everychem's solution, similar to PP405, with some reporting improved hair thickness and new growth. Concerns were raised about safety and the legitimacy of the product, with some users advising against purchasing research chemicals.

PP405 and JXL-069 are the same compound, but users experienced no results due to flawed application methods. The topical gel formulation of PP405 is designed to target hair follicle stem cells effectively, unlike liquid solutions that fail to penetrate deeply.