How quick does topical fin absorb? Finasteride/Dutasteride 9/13/2025
Topical finasteride absorption starts almost instantly, but the exact time needed for full absorption is unclear. Users suggest it may not need to stay on all day.
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6 / 1000+ resultscommunity Are we underestimating systemic absorption with homemade/generic Topical Fin? (HPCH vs. PG/Ethanol formulations)
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.
community Solvent for topical fin with low absorption
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.
community People call companies stupid for making very high concentration Topical Fin solutions but I think they overlook the fact that the actual absorption rate of finasteride varies greatly
The conversation discusses how the absorption rate of topical finasteride varies and is not equivalent to its oral form, with only a small percentage reaching the scalp. It also mentions that minoxidil in high concentrations is used topically because only a small amount is absorbed.
community I think microneedling before topical application of finasteride (or dut) is a path we should investigate (for those of us who don't care about systemic absorption). Here's why...
Microneedling before applying topical finasteride or dutasteride may enhance their effectiveness by increasing local absorption in the scalp, despite concerns about systemic absorption. Users discuss combining this method with oral treatments and minoxidil, noting potential benefits and side effects.
community continued loss on topical fin/min. thinking trying with tretinoin for absorption, any one have luck with this?
The conversation discusses using minoxidil and finasteride for hair loss, with concerns about absorption and considering adding tretinoin for better results. Microneedling is suggested as a method to improve absorption, with varying depths and frequencies recommended.
community Can using a scalp massager help with topical finasteride/minoxidil absorption?
Using a silicone scalp massager may help with dandruff and potentially improve the absorption of minoxidil and finasteride. The user has noticed peach fuzz growth after using minoxidil for over a month and finasteride for almost a month.
Related Research
6 / 1000+ resultsresearch FORMULATION OF TOPICAL FINASTERIDE AND EVALUATION OF ITS PERCUTANEOUS ABSORPTION
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Topical finasteride accumulates in the skin with minimal absorption into the bloodstream.