Living Proof.Living Proof. Perfect Hair Day (phd) Overnight Perfector

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This overnight solution delivers softer, shinier, more manageable hair that lasts up to five washes, or as long as one week. Made with the brand's patent-pending, hair-protecting compound OFPMA and a blend of nourishing amino acids, this lightweight solution safeguards color, protects against environmental damage and heat styling, and adds softness and shine. It's made without sulfates, silicone, or oil.