Collagen is the most abundant protein in the body, and it plays a vital role in hair growth 

Collagen provides the structure and support for the hair follicles, and it also helps to produce keratin, the main protein that makes up hair 

As we age, our bodies produce less collagen, which can lead to hair loss and thinning 

Taking a collagen supplement can help to increase the body's collagen production, which can lead to thicker, fuller hair 

Collagen supplements have also been shown to reduce hair loss and promote hair growth 

The best type of collagen supplement for hair growth is hydrolyzed collagen peptides 

Collagen supplements can be taken daily, and it typically takes several weeks or months to see results 

– Some people may experience side effects from collagen supplements, such as upset stomach or bloating.