49 citations
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January 1991 in “Food and chemical toxicology” In this study, zinc chloride was found to be severely irritant to the skin in rabbit, guinea-pig, and mouse models, while zinc oxide, zinc sulphate, zinc pyrithione, and zinc undecylenate showed minimal to no irritancy.
January 2023 in “Journal of clinical pharmacy and therapeutics” This study found that isoliensinine, a natural compound identified from a database, effectively prevented stress-induced hair greying in mice by blocking β-2 adrenergic receptors on melanocyte stem cells in hair follicles.
January 2013 in “Heilongjiang xumu shouyi” This study found that a compound additive improved the growth and fur quality of blue foxes, with a 28.7% increase in weight gain and longer pelt lengths compared to the control group.
9 citations
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March 2022 in “Antioxidants” This review summarized and classified 32 approved synthetic and natural-identical antioxidants, examining their regulatory status, safety, pharmacological properties, and effectiveness on human health, aiming to clarify their antioxidant actions and encourage further research in the field.
October 2021 in “Interfaces Científicas” This study analyzed the nutritional composition of 75 nutricosmetic products, finding common ingredients like biotin and zinc, but emphasized the need for further research on their effectiveness for hair and nail health.