July 2026 in “Journal of Investigative Dermatology” This study in mice found that using modified illite as a carrier for topical minoxidil enabled effective delivery without the solvent toxicity typically associated with minoxidil, while the illite also promoted hair growth through anti-inflammatory and pro-proliferative mechanisms.
34 citations
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April 2009 in “Skin Pharmacology and Physiology” This study found that Minoxidil had biphasic effects on normal human keratinocytes, stimulating proliferation at micromolar doses, but showing antiproliferative, pro-differentiative, and cytotoxic effects at millimolar concentrations.
17 citations
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July 2018 in “International Journal of Cosmetic Science” This study found that keratin-based particles were able to recover and enhance the mechanical properties and thermal stability of virgin and overbleached Asian hair, improving its strength and smoothness by around 40%, and demonstrated safety in human skin keratinocytes.
March 2025 in “Journal of Cosmetic Dermatology” This study explored the effects of TTFE on male androgenic alopecia, finding that topical application increased hair density, follicular diameter, and scalp hydration while reducing water loss and sebum production in a 12-week trial.
This study suggests that topically applied thyroid hormones T3 and T4 promote hair growth on human scalp tissues ex vivo, highlighting potential therapeutic use for hair loss conditions like androgenetic alopecia.
