Glycyrrhizic acid and licorice extract can significantly reduce unwanted hair growth.
January 2014 in “Journal of Investigative Dermatology” Proteins like aPKC and PDGF-AA, substances like adenosine and ATP, and adipose-derived stem cells all play important roles in hair growth and health, and could potentially be used to treat hair loss and skin conditions.
December 2018 in “IntechOpen eBooks” Neurohormones help control skin health and could treat skin disorders.
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April 2019 in “PLOS genetics” CD34+ and CD34- melanocyte stem cells have different regenerative abilities.
September 2019 in “Journal of Investigative Dermatology” Apple stem cell extract may increase the number of stem cells in a part of the hair follicle.