There are various treatment methods available for treating hair thinning. The most common practice is applying anti-thinning shampoo because it contains vitamins and amino acids that help in making your hair grow faster and thicker. Another method is consuming multivitamins. If you have any nutritional deficiency, your doctor would suggest multivitamins to make your hair grow thick and strong. Folic acid supplements, biotin, minoxidil, essential oils, finasteride, corticosteroids and omega – 3, omega – 6 fatty acids are other treatment options for hair thinning treatment.