Function

• Supplements for hair growth are designed to stimulate hair follicles to grow more hair. They also promote healthy looking hair and prevent hair from falling out.
  
  

Types

• Hair growing supplements are found in pill, capsule, powdered and liquid forms. They can also be found in food.
  
  

Protein

• Hair is nothing more than dead protein pushing through the epidermic layer of the scalp. Protein supplements can help promote growth.
  
  

Amino Acids

• The two amino acids L-cysteine and L-methionine have been known to improve hair growth. Some other beneficial amino acids are arginine, lysine and cystine.
  
  

Vitamins

• Some vitamins that have been known to improve hair growth include the B vitamins, vitamin C, vitamin E, inositol, biotin and zinc.
  
  

Identification

• Essential fatty acids, also known as EFAs, help give hair better texture and keep it from becoming brittle. Primrose oil, flaxseed oil and cold water fish such as salmon are good sources.