Nak Signature Structure Complex Protein Shampoo 350ml
Bring your hair back to life with the Signature Repair Cleanser – a powerful yet gentle shampoo formulated to rescue even the most fragile strands. Designed for chemically treated, dry, or damaged hair, this protein-packed formula works deep within the hair fibre to repair, hydrate, and protect from environmental and heat stressors.
Powered by Signature Peptides and the Ectoin Barrier Booster, it helps to rebuild hair structure, improve resilience, and nurture the scalp’s microbiome for long-term health and strength. This results in hair that feels stronger, smoother, and easier to style—with a natural satin finish.
Key Features
- Formulated for chemically treated, dry, or damaged hair
- Rich in protein and Signature Peptides for structural repair
- Contains Ectoin Barrier Booster to protect against environmental stress
- Supports scalp microbiome balance
- Delivers smooth, strong, and manageable hair after use
| Product Information |
|---|
| Brand: Nak |
| Product Type: Shampoo |
| Volume: 350ml |
| Target Hair Type: Damaged, dry, chemically treated |
| Key Ingredients: Signature Peptides, Ectoin Barrier Booster |
FAQ
Is this shampoo suitable for color-treated hair?
Yes, this shampoo is specifically designed for chemically treated hair and helps maintain color integrity while repairing damage.
Does it leave hair feeling heavy or greasy?
No, it provides deep hydration without weighing hair down. Most users report a light, smooth finish.
Can it be used daily?
It is safe for regular use. However, for best results, use once every other day if your hair is very fragile or under frequent heat styling.

John Turner –
After using this shampoo for two weeks, my dry, color-treated hair feels much stronger and smoother. It doesn’t leave any residue and my hair holds style better. The satin finish is natural and not shiny. I noticed less frizz and improved manageability.
Justin Hunter –
My damaged hair has never felt this healthy. The protein content really helps repair split ends and strengthens the strands. I use it twice a week and see visible improvement in texture and resilience.
Sean Henderson –
Great for dry and chemically treated hair. It cleans well without stripping moisture. The scent is mild and not overpowering. A bit more expensive, but worth it for the results.
Joseph McDonald –
I’ve tried several protein shampoos, and this one stands out. It doesn’t feel heavy, and my hair stays soft and manageable. The scalp feels balanced too, which I didn’t expect.
Jennifer Smith –
Works well for my curly, dry hair. After a few uses, I noticed less breakage and better definition. It’s a bit thick in texture, but that’s not a downside. Would recommend to anyone with damaged strands.