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May 2020 in “npj Regenerative Medicine” Immune cells help regulate hair growth, and better understanding this can improve hair loss treatments.
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31 citations
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December 2002 in “Experimental dermatology” Barley extract, specifically procyanidin B-3, can promote hair growth and counteract growth inhibition.
January 2025 in “Open Veterinary Journal” Supplements improved the dog's hair growth without side effects.