Formulated for dry, brittle hair, Redken All Soft Shampoo is built around Argania Spinosa Kernel Oil (Argan Oil) and Redken's RCT Protein Complex, which pairs Arginine and Hydrolyzed Soy Protein to target hair from root to core to tip. Argan Oil penetrates the hair fiber to add softness and shine, while Guar Hydroxypropyltrimonium Chloride acts as a conditioning agent that helps smooth and detangle during cleansing. The shampoo contains Sodium Laureth Sulfate, so it's not a sulfate-free formula — its gentleness instead comes from the conditioning agents balancing the cleanse. Suitable for fine-to-medium, color-treated hair, the shampoo is designed to be followed with All Soft Conditioner for a more complete moisture routine, and layered with All Soft Argan-6 Oil for additional softness and shine.