4 citations
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May 2022 in “International journal of molecular sciences” This study found that heat-killed Enterococcus faecalis EF-2001 promoted hair regrowth in mice, likely by increasing the expression of growth factors and marker genes.
24 citations
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April 2013 in “PLOS ONE” This study identifies substance P, TNFα, and IFNγ as novel regulators of prolactin and its receptor expression in human skin, suggesting intracutaneous prolactin is not controlled by dopamine.
2 citations
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July 1998 in “Journal of Investigative Dermatology” The authors confirmed that β-estradiol inhibits hair growth in mice when used at the correct concentration.
1 citations
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November 2023 in “Biomedicines” In this article, researchers link menopause to hair follicle lifecycle changes, noting that estrogen decline, metabolic shifts, genetics, and stress can contribute to hair thinning and texture variation, although effects differ among women.
This review concluded that the efficacy of cosmeceutical hair serums for addressing hair loss lies in their use of bioactive peptides and plant compounds, like flavonoids and sterols, that target eight key contributing factors identified in hair loss conditions.