What are the Best Hair Growth Supplements | Top 5 Hair Growth Supplements

What are the Best Hair Growth Supplements | Top 5 Hair Growth Supplements

Welcome back to Yinrin’s Hairpedia, where we discuss and delve into all your haircare questions. Today we're diving into a topic that has probably crossed your mind if you think your hair grows too slowly or you're suffering from a lack of growth in a particular area. Let’s get into the nitty-gritty of what hair growth supplements work and which are backed by science!

Biotin: For a stronger hair shaft

The first supplement is Biotin, also known as Vitamin B7. It is easily accessible and famous in the hair care world for good reason because Biotin plays a crucial role in the health of your hair, skin, and nails. It can aid in strengthening the hair shaft, making it less prone to breakage. According to a study published in the Journal of Clinical and Aesthetic Dermatology, biotin supplementation can lead to significant hair growth in those with a deficiency (Glynis, Ablon. 2012) 

Vitamin D: Sunshine for Your Strands

The second supplement is Vitamin D, which we naturally get in abundance from the sun. However, for those living in countries with short summers, deficiencies can run rampant. Vitamin D is essential for hair follicle cycling, which is the stages of growth your hair follicle goes through. A deficiency in this vitamin can lead to hair thinning and hair loss. Spending a little time in the sun or taking a supplement can make a big difference. According to a study in the Journal of Dermatology and Endocrinology, there is a strong correlation between Vitamin D deficiency and hair loss.  (van Zijl, Maud D et al. 2017)

Iron: The Power Mineral

Iron is another key player in the hair growth game. It's vital for producing hemoglobin, which carries oxygen to your hair follicles. Low iron levels can result in hair loss and slow growth.

Zinc: The Growth Booster

Zinc is essential for hair tissue growth and repair. It also helps keep the oil glands around the follicles working properly. A lack of zinc can lead to hair loss and a dry, flaky scalp.

Saw Palmetto: The Natural DHT Blocker

Saw Palmetto is a plant with fruit that’s often used in hair loss treatments. It works by blocking DHT (dihydrotestosterone), a hormone linked to hair loss.


The best hair growth supplements to help you achieve the hair of your dreams. Remember, supplements can be a great addition to your hair care routine, but they work best when combined with a healthy diet, good hair care practices, and a little patience. Always consult with a healthcare professional before starting any new supplement regimen.


  • Glynis, Ablon. “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 vol. 5,11 (2012): 28-34. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3509882/
  • van Zijl, Maud D et al. “Pessary or Progesterone to Prevent Preterm delivery in women with short cervical length: the Quadruple P randomised controlled trial.” BMC pregnancy and childbirth vol. 17,1 284. 4 Sep. 2017, doi:10.1186/s12884-017-1454-x https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5584011/
  • Park, Song Youn et al. “Iron plays a certain role in patterned hair loss.” Journal of Korean Medical Science vol. 28,6 (2013): 934-8. doi:10.3346/jkms.2013.28.6.934 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3678013/
  • Ahn, Christine S, and Babar K Rao. “The Life Cycles and Biological End Pathways of Dermal Fillers.” Journal of Cosmetic Dermatology, vol. 13, no. 3, Sept. 2014, pp. 212–223, https://doi.org/10.1111/jocd.12100.

  • Feel free to drop any questions or share your own hair growth stories in the comments below. We love hearing from you!
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