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    Glossary Penetration

    ability of a substance to pass through skin or hair

    Penetration, in the context of hair and scalp treatments, refers to the ability of a substance to pass through the outer layer of the skin or hair shaft to reach deeper layers. This is crucial for the effectiveness of topical treatments, such as minoxidil for hair growth, as it ensures that active ingredients can reach the hair follicles where they exert their effects.

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    Community 11

    1. So I earlier used to use the alchol variant but it lead to dryness in scalp and I switched to a non alchol variant that contains oleanolic acid , is it more or less the same , coz I heard alchol helps in better penetration so wondering if this would reduce my hair growth. Reddit · 22 Mar 2023
    2. Propylene glycol vs ethyl alcohol(70% or 96%) for topical finasteride solution. Pros and cons? Reddit · 22 Apr 2024
    3. Am I losing my transplant results by using only topical finasteride as opposed to oral? Reddit · 1 Sept 2026
    4. What’s a good carrier for GHK-Cu or AHK-Cu peptides to penetrate skin? Reddit · 27 Apr 2026
    5. Nanoxidil Is Probably Better Than Minoxidil. Big Pharma Is Why You’ve Never Heard Of It. Reddit · 22 Mar 2026
    6. Topical dutasteride significantly outperforms oral finasteride Reddit · 22 Sept 2025
    7. Can microneedling damage existing hair? Reddit · 20 Aug 2025
    8. Can use olive oil instead of PG (propylene glycol) or glycerin in topical finasteride preparation? Reddit · 11 Aug 2024
    9. 57% increased chance of pattern hair loss independently associated with the consumption of sugary beverages in men (p<0.001) Pt 2 Reddit · 29 Jul 2024
    10. Is the “crunching” sound during microneedling my scalp actually the needles cutting through hair? Reddit · 24 Mar 2026
    11. Has Anyone Heard About Ethossomal Finasteride? 6x Finasteride Delivery in Hair Folicule? Reddit · 15 Sept 2023