8. Vitamin C
Vitamin C packs up a wide range of powerful health and beauty benefits, and since it is a mighty antioxidant, it not only enhances the strength of the hair, but also aids in the production of healthy collagen.
Healthy collagen is extremely necessary for the development of healthy and much more elastic roots, which promote long and healthy hair growth. This is the primary reason why all foods and fruits that are rich in antioxidants aid in shielding the hair and skin against damage, along with increasing the supply of oxygen received by the roots.
Vitamin C is a water-soluble nutrient, therefore, if you take a supplement, it is highly unlikely to cause any kind of toxicity. However, most people tend to take supplements excessively, therefore, it is highly advisable to consult a doctor or nutritionist about healthy dosage requirements.
Having said that, it is always better to consume your dosage requirement of vitamin C from natural food based sources, such as potatoes, oranges, lemon, guava, grapefruits and others.