Which hair type is it good for? Straight Wavy Curly Coiled Tightly Coiled A beauty-boosting dose of biotin, silica, ashwagandha, and amino acids that work to support healthy hair growth. Key benefits:- Replenishes hydration- Promotes healthy, shiny hair - Prevents breakage If you want to know more…If you're starting to experience a loss of volume or shine with age, Hair Supplement for Thinning Hair will help strengthen and prevent breakage. MSM and biotin support healthy hair growth, ashwagandha naturally helps to reduce the stress hormone cortisol in the body, and amino acids support natural keratin production.