American hair-care brand now owned by Procter & Gamble
A limited-time Amazon deal reduces NYK1 Salt and Sulphate Free Shampoo and Conditioner Set to £29.74, down from £46.95. The two 500ml bottles target hair treated with keratin, colour, or extensions, and reviewers report softer, shinier, and easier-to-manage hair. The offer is time-limited and tracks over 1,000 units sold in the past month.