What vitamin or supplement promotes healthy hair growth?

Answer

Protein

Biotin, B-vitamin is found in rich foods like soy, milk, egg yolks and liver. Other B-vitamins includes; choline, frolic acid, vitaminB-1, vitaminB-2, vitaminB6, and vitamin B-12.Our growth and replication of cells depends on biotin.

The main sources of biotin are liver, kidneys, milk, cheese, butter, poultry, cauliflower, bananas, watermelon, peas, brewer's yeast, nuts, beans, oat bran, salmon, and mackerel.

To prevent hair loss eating rich foods will give the body an average level of biotin.