Ingredients of Trichological Shampoos with Alleged Beneficial Effects on Hair—What Is Really Known About Their Efficacy? A Scoping Review of an Area with More Unknowns than Knowns

    November 2025 in “ Cosmetics ”
    Radoslaw Spiewak, Ewelina Szendzielorz
    Studysummary This study found that of the many ingredients advertised in shampoos as effective against hair loss, only caffeine, adenosine, placental proteins, and melatonin have limited clinical evidence supporting their efficacy, with most claimed active ingredients lacking any trial-based validation.
    Automatically generated from the study's abstract, not written by a person, and not a review of the full paper. Not medical advice or a treatment recommendation. Read the original study, and consult a qualified healthcare professional before changing treatment. Full disclaimer
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    Research cited in this study 61

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