January 2026 in “Frontiers in Medicine” In this study, PP-PTKL exhibited antioxidant, anti-inflammatory, and pro-melanogenic effects in laboratory settings, suggesting its potential role in preventing or treating hair greying. Further animal and human studies are needed to verify these findings.
1 citations
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April 2009 in “The Proceedings of the International Plant Nutrition Colloquium XVI” This study found that phosphorus and nitrogen deprivation increased root hair length in Brassica carinata and induced the expression of certain P-responsive genes, such as LRR and PRP.
September 2021 in “Hair transplant forum international” In this study, the P&P Hairline Laser, a hands-free laser-assisted device, was found to produce smoother and more symmetrical hairlines compared to traditional handheld laser devices.
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.
21 citations
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January 2015 in “The Journal of Steroid Biochemistry and Molecular Biology” In this study, researchers demonstrated that in a mouse model, the stimulation of mammary tumor growth due to progesterone is primarily caused by its metabolite, 5αP, not progesterone itself.
