PCA (Pyrrolidone Carboxylic Acid) Bond Repair Hair Treatment is a lightweight fine spray mist that helps to repair, protect and strengthen damaged hair bonds. Immediately hair looks healthier, feels softer, less frizzy and becomes stronger, with improved shine and bounce. This new treatment features a unique technology (Granrepair Powerbond) that penetrates the hair fiber to target all bonds differently, to help repair, strengthen and protect them from damage caused by excessive bleaching, color dyeing, or heat styling. Unlike skin, hair lacks regenerative properties. Therefore, when deciding to bleach or color hair, it’s beneficial to use a product like PCA, to help protect and maintain the hair’s structural integrity.