This dual-action moisturizing hair serum helps to balance the scalp’s microbiome* and tames hair. Infused with betaine and pro-vitamin B5, this smoothing serum improves hair shine and softness. Locks hair moisture into the fiber for long-lasting frizz control. Proven Skincare Ingredients: balance scalp microbiome. Betaine: controls water balance. Pro-Vitamin B5: moisture hair. Murumuru: deeply nourishes.