5th Avenue NYC. New. IPN: Interlock Protein Network. Cleanse, restore and soften dry, brittle hair. All Soft Shampoo with Redken's exclusive Interlock Protein Network and keratin enrich complex with omega-6 enriched argan oil replenishes hair's protein, composed of keratin, and nourishes hair for intense softness. Hair is silky soft with increased manageability, suppleness and lasting shine. Suitable for color-treated hair. Exclusive salon distribution. redken.com. Made in USA.