Scientific References

  1. Raman, R., MS and RD (2020) 7 impressive benefits of vitamin C supplements, Healthline.

  2. Snyder, C., MS and RD (2019) How much vitamin C should you take?, Healthline.

  3. The benefits of vitamin C (no date) WebMD.

  4. Nordqvist, J. (2017) Vitamin C: Why we need it, sources, and how much is too much, Medical News Today.

  5. Kubala, J., MS and RD (2013) The benefits of vitamin E, Healthline.

  6. Novel vitamin C and E and green tea polyphenols combination serum improves photoaged facial skin (no date) JDDonline - Journal of Drugs in Dermatology.

  7. Successful short-term and long-term treatment of Melasma and postinflammatory hyperpigmentation using vitamin C with a full-face iontophoresis mask and a mandelic/Malic acid skin care regimen (no date) JDDonline - Journal of Drugs in Dermatology.

  8. Pullar, J., Carr, A. and Vissers, M. (2017) “The roles of vitamin C in skin health,” Nutrients, 9(8), p. 866. doi: 10.3390/nu9080866.

  9. Millar, H. (2021) Zinc deficiency and nails: Relationship, signs, treatment, and more,

  10. Gref, R. et al. (2020) “Vitamin C–squalene bioconjugate promotes epidermal thickening and collagen production in human skin,” Scientific reports, 10(1). doi: 10.1038/s41598-020-72704-1.

  11. Ferreira, A. M. et al. (2012) “Collagen for bone tissue regeneration,” Acta biomaterialia, 8(9), pp. 3191–3200. doi: 10.1016/j.actbio.2012.06.014.

  12. Lipner, S. R. and Scher, R. K. (2018) “Biotin for the treatment of nail disease: what is the evidence?,” The Journal of dermatological treatment, 29(4), pp. 411–414. doi: 10.1080/09546634.2017.1395799.

  13. Van De Walle, G. et al. (2023) Biotin for hair growth: Does it work?

  14. Goodson, A. et al. (2018) Top 8 vitamins and nutrients for healthy, strong nails, Healthline.

  15. Choi, F. D. et al. (2019) “Oral collagen supplementation: A systematic review of dermatological applications,” Journal of drugs in dermatology: JDD, 18(1).

  16. Haneke, E. and Baran, R. (2010) “Micronutrients for Hair and Nails,” in Nutrition for Healthy Skin. Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 149–163.

  17. Labun, P. et al. (2013) “Calculating the Silicon in Horsetail (Equisetum arvense L.) during the Vegetation Season,” Food and nutrition sciences, 04(05), pp. 510–514. doi: 10.4236/fns.2013.45065.

  18. MacDonald, R. S. (2000) “The role of zinc in growth and cell proliferation,” The journal of nutrition, 130(5), pp. 1500S-1508S. doi: 10.1093/jn/130.5.1500s.

  19. Integumentary system (no date) Cleveland Clinic.

  20. Fletcher, J. (2021) Calcium deficiency and nails: Link, signs, treatment, and more, Medical News Today.

  21. You’ve heard about hyaluronic acid for skin — but what can it do for hair? (2021) Healthline.

  22. Umar, S. (2021) Surprising benefits of collagen for the hair, skin and nails as explained by scientists, Dr.UGro Gashee.

  23. Newman, T. (2017) DHT (dihydrotestosterone): What is DHT’s role in baldness?,

  24. Leonard, J. (2019) Foods high in vitamin A: 14 best sources and nutritional content,

  25. Streit, L. et al. (2018) 9 health benefits of vitamin B6 (pyridoxine), Healthline.

  26. Vitamin B6 (2019) The Nutrition Source.

  27. Jillian Kubala, R. D. (2023) Health benefits of biotin, Health.

  28. Hrefna Palsdottir, M. S. (2020) What are the health benefits of biotin?, Medical News Today.

  29. Patel, D. P., Swink, S. M. and Castelo-Soccio, L. (2017) “A review of the use of biotin for hair loss,” Skin appendage disorders, 3(3), pp. 166–169. doi: 10.1159/000462981.

  30. Kubala, J., MS and RD (2015) Health benefits of biotin, Healthline.

  31. Raman, R., MS and RD (2020) Calcium-magnesium-zinc: Benefits, side effects, and dosage, Healthline.

  32. Roohani, N. et al. (2013) “Zinc and its importance for human health: An integrative review,” Journal of Research in Medical Sciences : The Official Journal of Isfahan University of Medical Sciences, 18(2), p. 144.

  33. Copper (no date)

  34. Morris, S. Y. and Klein, E. (2014) Copper and nutrition: Why it’s good for you, Healthline.

  35. Lupu, M. et al. (2019) “Beneficial effects of food supplements based on hydrolyzed collagen for skin care (Review),” Experimental and therapeutic medicine, 20(1), p. 12. doi: 10.3892/etm.2019.8342.

  36. Wang, H. (2021) “A review of the effects of collagen treatment in clinical studies,” Polymers, 13(22), p. 3868. doi: 10.3390/polym13223868.

  37. Ms, C. B., RD and CD (2019) Bovine collagen: Benefits, forms, and uses, Healthline.

  38. Health benefits of collagen (no date) WebMD.

  39. Basit, A. et al. (2018) “Health improvement of human hair and their reshaping using recombinant keratin K31,” Biotechnology reports (Amsterdam, Netherlands), 20(e00288), p. e00288. doi: 10.1016/j.btre.2018.e00288.

  40. Watson, K. (2018) Keratin: Benefits and uses for hair, Healthline.

  41. Papakonstantinou, E., Roth, M. and Karakiulakis, G. (2012) “Hyaluronic acid: A key molecule in skin aging,” Dermato-endocrinology, 4(3), pp. 253–258. doi: 10.4161/derm.21923.

  42. Ames, H. (2021) 11 benefits of hyaluronic acid for the face and body,

  43. F. C. of Simple Skincare Science (2017) Hyaluronic acid: Skin benefits, products to use, and more, Healthline.


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