DHT (a male hormone) shrinksyour hair folicles causing hair thinning, and eventually baldness

Taking finasteride blocks the enzyme responsible for producing DHT. It promotes hair regrowth and prevents hair loss.

As a hair fertilizer, minoxidil encourages blood flow to follicles to develop longer and thicker hair.

Vitamin A can help with healthy hair growth, making it stronger and thicker. Collagen increases the body's hair building proteins, which can result in longer, thicker hair.