Everyone fusses over the treatment and forgets the step that comes first. Damaged hair is at its most vulnerable wet and lathered, which is exactly where this litre earns its keep.
TL;DR: The protein-packed cleanser from the NAK Signature range, in salon-sized litre form. Bond-building care for visibly stronger hair, with Signature Peptides and the Ectoin Barrier Booster to help condition and strengthen. Built for fragile, chemically treated, dry or damaged hair, and named Best in Care at the 2025 ANZ Hair Industry Awards alongside its matching conditioner. Sweet grape scent.
Product Details and Benefits
- Bond-building care. Works toward visibly stronger hair rather than simply cleaning it and handing the repair job entirely to the conditioner.
- Protein-packed cleanser. Delivers strengthening care at the wash stage, which is when compromised hair is swollen with water and most in need of support.
- Hydrating extracts built in. Helps strengthen fragile hair and reduce the visible effects of heat styling, so tongs and blow-dryers do less lasting damage.
- Stronger, easier, smoother. Makes hair stronger, easier to style and satin smooth, which is the difference between hair that behaves and hair that fights the brush.
- Signature Peptides. Work to restore scalp health and reduce damage to the hair fibre.
- Ectoin Barrier Booster. Protects hair by fortifying and hydrating the strand.
- Natural Vegan Complex. Coconut Oil for softness and suppleness, Aloe Vera for hydration memory, Hydrolysed Rice Protein for strength and balance, and Pear Extract to replenish and condition dry or damaged hair.
- Recommended for fragile, chemically treated, dry or damaged hair. Bleached blondes, regular colourers and committed heat stylists, this one has your name on it.
- Sweet grape fragrance. A genuinely good shower, not just a functional one.
- Award-winning pairing. The Structure Complex Protein Shampoo and Conditioner were named Best in Care at the 2025 ANZ Hair Industry Awards.
- Australian made and owned. NAK has been salon-trusted since 2003, with formulas that are 100% vegan and cruelty free, and free from sulphates, parabens and gluten.
- A full litre. Back-bar sized for salon basins, long hair, and households where the shampoo bottle empties suspiciously fast.
How to Use
- Apply to wet hair and gently massage into a cleansing lather.
- Rinse thoroughly.
- Repeat if desired for optimum cleansing.
- Follow with the matching Structure Complex Protein Conditioner.
Pro tip: The second lather is the one that counts. The first pass is mostly busy lifting oil, dry shampoo and styling product off the surface, which is exactly why the instructions allow for a repeat. On long hair or heavy product users, that second wash is where the formula finally makes proper contact with the hair instead of with last week's hairspray.
Why You'll Love It
Strong hair isn't built in one dramatic treatment, it's built in the ordinary washes nobody photographs. This is the litre that makes those washes count. Add it to your cart and start the repair where it actually begins.
