Vitamin D vs. Biotin: Which is Better for Hair Loss?
Biotin is perhaps the better known player participates in the production of keratin3. Research even shows this does not get enough biotin4 can lead to brittleness and hair loss, but true biotin deficiency is quite rare.
However, your body cannot make its own biotin, so you must take it orally. Meat (especially offal), fish, eggs, seeds, nuts, and some vegetables (sweet potatoes, broccoli, and spinach) are the main dietary sources of biotin, while targeted supplements may also provide support.
For optimal hair benefits, you may even consider a biotin supplement with additional nutrients such as vitamin D or collagen. We have already discussed the importance of the former, but collagen also contains amino acids necessary for the production of keratin and therefore hair growth. That’s why you can find some hair growth supplements that contain both biotin and collagen, like a few of the top choices on this list.