The 13 Best Biotin Shampoos of 2021
The 13 Best Biotin Shampoos For Stronger, Fuller Hair
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You drink coffee to give yourself an energy kick at the beginning of every day, but have you ever heard of using caffeine to "wake up" your hair? That's essentially what the Hask Biotin Boost Thickening Shampoo ($5) is good for: alongside biotin and collagen, its star ingredient is coffee, which is used to stimulate the hair and keep it looking thick and healthy.