If you grew up in the tropical parts of India, you would have probably seen a couple of hibiscus plants in your household. And when the time came, a concoction was made out of its leaves and flowers, and applied to your scalp and hair. One of Secret's best-sellers, the hibiscus shampoo balances the pH of the scalp and stimulates hair growth. And the best part: You can start to feel the difference on your first wash! Made solely out of natural ingredients such as hibiscus, coconut oil, brahmi, glycerin, vetiver, tulsi and amla, the shampoo uses a base free of Sodium Lauryl Sulfate, paraben and silicone.