December 2025 in “International Journal of Newgen Research in Pharmacy & Healthcare” Global standardization and stricter regulations are needed for safer herbal hair products and better international trade.
3 citations
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June 2011 in “EFSA Journal” Spermidine's effect on hair growth is not proven.
22 citations
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July 2011 in “EFSA journal” There is not enough evidence to support health claims about soy isoflavones.
1 citations
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July 2012 in “EFSA journal” KF2BL20 does not have proven benefits for maintaining normal hair.
1 citations
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July 2012 in “EFSA Journal” The combination of certain vitamins and pumpkin seed oil has not been proven to maintain normal hair.