References
Biotin
Glynis, A. (2012, November). A double-blind, placebo-controlled study evaluating the efficacy of an oral supplement in women with self-perceived thinning hair. The Journal of clinical and aesthetic dermatology. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3509882/
Hydrolyzed Fish Collagen Powder
Hornfeldt CS;Holland M;Bucay VW;Roberts WE;Waldorf HA;Dayan SH; (n.d.). The safety and efficacy of a sustainable marine extract for the treatment of thinning hair: A summary of new clinical research and results from a panel discussion on the problem of thinning hair and current treatments. Journal of drugs in dermatology : JDD. https://pubmed.ncbi.nlm.nih.gov/26355631/
OptiMSM® (MSM)
Butawan, M., Benjamin, R. L., & Bloomer, R. J. (2017, March 16). Methylsulfonylmethane: Applications and safety of a novel dietary supplement.. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5372953/
Saw Palmetto Extract
Glynis, A. (2012, November). A double-blind, placebo-controlled study evaluating the efficacy of an oral supplement in women with self-perceived thinning hair. The Journal of clinical and aesthetic dermatology. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3509882
Shoden® (Ashwagandha)
Pandey, M., Adhikari, L., Kotiyal, R., Semalty, A., & Semalty, M. (2019). Preparation and evaluation of hair growth formulations of Indian ginseng (Withania somnifera) for Alopecia. Asian Journal of Biological Sciences, 12(3), 524–532. https://doi.org/10.3923/ajbs.2019.524.532
Bioperine® (Piperine)
McNamara, F. N., Randall, A., & Gunthorpe, M. J. (2005). Effects of piperine, the pungent component of black pepper, at the human vanilloid receptor (TRPV1). British journal of pharmacology, 144(6), 781–790. https://doi.org/10.1038/sj.bjp.0706040
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1576058/
EVNolMax® (Tocopherol and Tocotrienols)
Beoy, L. A., Woei, W. J., & Hay, Y. K. (2010, December). Effects of tocotrienol supplementation on hair growth in human volunteers. Tropical life sciences research. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3819075/
Japanese Knotweed Root Extract ( Polygonum)
Li, Y., Han, M., Lin, P., He, Y., Yu, J., & Zhao, R. (2015, July 30). Hair growth promotion activity and its mechanism of Polygonum multiflorum. Evidence-Based Complementary and Alternative Medicine. Retrieved October 1, 2021, from https://www.hindawi.com/journals/ecam/2015/517901/.
Keratin
Basit, A., Asghar, F., Sadaf, S., & Akhtar, M. W. (2018, October 24). Health Improvement of human hair and their reshaping using recombinant keratin K31. Biotechnology reports (Amsterdam, Netherlands). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6218806/
Bamboo stem or shoot extract
Barel A, Calomme M, Timchenko A, De Paepe K, Demeester N, Rogiers V, Clarys P, Vanden Berghe D. Effect of oral intake of choline-stabilized orthosilicic acid on skin, nails and hair in women with photodamaged skin. Arch Dermatol Res. 2005 Oct;297(4):147-53. doi: 10.1007/s00403-005-0584-6. Epub 2005 Oct 26. Erratum in: Arch Dermatol Res. 2006 Apr;297(10):481. Dosage error in article text. Erratum in: Arch Dermatol Res. 2006 Feb;297(8):381. Paepe, K De [corrected to De Paepe, K]. PMID: 16205932.
https://pubmed.ncbi.nlm.nih.gov/16205932/
Capsimam TM (Capsaicin)
Harada, N., Okajima, K., Arai, M., Kurihara, H., & Nakagata, N. (2007). Administration of capsaicin and isoflavone promotes hair growth by increasing insulin-like growth factor-i production in mice and in humans with alopecia. Growth Hormone & IGF Research, 17(5), 408–415. https://doi.org/10.1016/j.ghir.2007.04.009