B Vitamins

• There are a number of B vitamins that can promote hair growth, according to Holistic Hair Care. These include B3 (niacin), B5 (pantothenic acid), vitamin B6 (pyroxidine), vitamin B7 (biotin) and vitamin B12.
  
  

Biotin

• Biotin is a water-soluble vitamin that is essential for cell growth and the production of fatty acids. According to Oregon State University, biotin deficiency may result in hair loss. As such, biotin is often recommended for strengthening hair and promoting hair growth.
  
  

Omega-3 Fatty Acids

• According to Andrea Giancoli, MPH, RD, essential omega-3 fatty acids support scalp health. A healthy scalp produces healthy hair growth.
  
  

Vitamin E

• Natural News pointed out that vitamin E stimulates capillary growth in the scalp. This results in better scalp circulation, which in turns speeds up hair growth.
  
  

Zinc

• Zinc is a mineral that doubles as an antioxidant that promotes hair growth. Other hair-boosting minerals include magnesium, selenium and calcium.
  
  

Caution

• Choosing pills incorporating these minerals and vitamins may help hair growth. However, results may vary by individual.