An Analytical Framework for the Selective Extraction and Determination of Nine Multiclass Endocrine-Disrupting Chemicals from Haircare Products

PP405 from Everychem is likely fake and potentially harmful, with concerns about its stability and the risk of using the wrong MPC inhibitor, which could damage hair follicles. The real PP405 was studied under strict conditions, and DIY attempts are discouraged due to unknown formulation and quality control.

RU58841 is not recommended for use around children due to potential exposure risks. Alternatives like CB-03-01 might be considered, but further research is advised.

There is an inconsistency between the molecular weight and formula listed on EveryChem's product page and the analytical PDFs for 3HP and PP30, suggesting a possible error in the product description. Concerns are raised about EveryChem's business practices and lack of transparency in testing and manufacturing.

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.

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.

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.