23 citations
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January 2001 in “International journal of toxicology” St. John's Wort extract and oil safety in cosmetics is unclear; more data needed on photosensitization, toxicity, and human irritation.
5 citations
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April 2019 in “Ege Tıp Dergisi” Hypericum perforatum gel helps heal burns effectively.
22 citations
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November 2016 in “Indian Journal of Pharmaceutical Education and Research” Hibiscus rosa-sinensis leaf extract is safe, has strong antioxidants, and effectively heals wounds.
June 2026 in “Scientific Reports” Hypericin and berberine may help hair growth by activating oxytocin signals.
4 citations
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September 2020 in “Andrologia” Oregano extract helps fix testis and sperm damage caused by finasteride.