Three-piece Redken Acidic Color Gloss set for colour-treated hair: Acidic Color Gloss Sulphate-Free Shampoo 300ml, 1‑Min Gloss‑in‑Mask Mini 50ml and Naked Gloss Lightweight Shine Oil 100ml. Shampoo uses citric acid and Acidic Shine Complex to rebalance pH, seal the cuticle and deliver glass-like shine for up to 3 days (consumer test). The silicone-free mask provides deep conditioning and instant gloss. Naked Gloss oil smooths, hydrates, reduces frizz and offers heat protection. How to use: shampoo, apply mask on damp hair as directed, then smooth oil through mid-lengths and ends.