April 2024 in “Current research in nutrition and food science” This study found that a food supplement improved skin moisturization, elasticity, and thickness, reduced telogen hair density, and enhanced nail status in women with mild-to-moderate aging signs after 84 days.
28 citations
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February 2010 in “Experimental Dermatology” This study concluded that the frizzy mutation in mice is linked to a T to A transversion in Prss8 and is orthologous to the 'hairless' mutation in rats.
3 citations
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October 2022 in “Han'gug dongmul jawon gwahag hoeji/Han-guk dongmul jawon gwahak hoeji/Journal of animal science and technology” This study found that L-glutamine supplementation in Hanwoo steers under heat stress did not affect growth performance or muscle and adipose tissue gene expression but was associated with increased immune cells and reduced HSP90 expression.
January 2019 in “Journal of cosmetology & trichology” In this study, researchers found that supplementation with L-cystine, either alone or with a keratin hydrolysate, significantly improved hair density, hair and nail brightness, and nail growth in women experiencing acute telogen effluvium and brittle nail syndrome over three months.
28 citations
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March 2017 in “African Journal of Traditional Complementary and Alternative Medicines” This study found that linseed oil, rich in flavonoids and terpenoids, significantly improved burn wound healing in terms of faster contraction, reduced inflammation, and enhanced tissue regeneration compared to other treatments, without adverse effects.