Boldify’s Hair Thickening Shampoo and Conditioner is designed to hydrate your hair, restore its strength, and prevent strands from falling out. One of the main ingredients is biotin, which “is important for energy production and known to improve hair health,” explains Dr. Jaliman. It works alongside aloe vera, rosemary extract, and sage to fight baldness, remove excess oils to unclog hair follicles, and stimulate the roots for healthier growth. Best of all, the set is made without harmful chemicals such as sulfates and parabens, and is gentle enough for dyed hair. A second shopper shared: “I am shedding hair like crazy due to hormonal changes. I have been using this shampoo for over a week and I have already noticed a change. About half the amount is shedding. My hair feels thicker, healthier, and actually heavier on my head!” To buy: $20; amazon.com. To buy: $20; amazon.com.