K18 Leave-In Molecular Hair Mask – 15ml

<p>The K18 Leave-In Molecular Hair Mask (15ml) is a breakthrough, science-backed treatment that uses patented K18Peptide™ technology to reconnect broken keratin chains deep within the hair cortex, reversing damage from bleach, color, chemical services, and heat in just 4 minutes, no rinse required, leaving hair visibly stronger, softer, and up to 91% more elastic with every use.</p>