By combining a time commitment to researching the available data with a physical commitment to taking a keratin supplement every day to see if I noticed any changes, I was eager to find out once ...

Here are the best vitamins for hair growth and thickness. Biotin, also known as vitamin B7, stimulates the production of keratin to increase follicle growth. Biotin deficiencies tend to be rare ...

B vitamins, particularly B7 (biotin) and B9 (folic acid), are crucial for keratin production, strengthening hair follicles and improving overall hair health. Vitamin C is an antioxidant that helps ...