Give your hair colour a boost of vibrancy and up to six more weeks of freshness with this color-protect shampoo.What it does: As with all Soma shampoos, the pH range is between 4.5 to 5.5 to guarantee that your hair cuticle remains closed - locking in colour. This Sulfate-Free shampoo helps to detoxify your hair while providing organic based proteins to ensure a healthy post-colour recovery.Product Options Available are as follows: Size : 64 oz - Soma Colour Protect Shampoo