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      community Can absorption be intervened by oil, sebum etc?

      in Treatment  3 upvotes 1 year ago
      The conversation discusses whether oily scalp and sebum can hinder the absorption of topical hair loss treatments like Minoxidil and Finasteride, even when using tretinoin. The user is skeptical about the effectiveness of these treatments due to their oily scalp condition.

      community Tretinoin absorption Minoxidil

      in Treatment  2 upvotes 1 year ago
      Tretinoin may help more minoxidil convert to its active form and could potentially increase its absorption, raising concerns about safety if too much enters the bloodstream. It's unclear if tretinoin affects finasteride absorption.

      community Minoxidil absorption and washing hair

      in Microneedling  8 upvotes 3 years ago
      User asks if washing hair or using hair fibers after minoxidil dries is okay and if dry scalp means full absorption. Some doctors and sources say 50-75% absorption occurs after an hour.

      community Are we underestimating systemic absorption with homemade/generic Topical Fin? (HPCH vs. PG/Ethanol formulations)

      in Research/Science  3 upvotes 2 months ago
      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.