Every shampoo in this collection is sulphate-free and safe for hair extensions. Sulphates are the harsh cleansers in most regular shampoos — they strip moisture from 100% human hair and can weaken the keratin bonds and tapes that hold your extensions in place. These gentle formulas from Olaplex, K18, Moroccanoil, Color Wow, milk_shake and REF cleanse thoroughly without either risk.
For best results, wash 2–3 times a week, lather with a downward stroking motion rather than scrubbing, and rinse thoroughly around the bonds. Follow with a conditioner applied mid-lengths to ends only — never on the bonds themselves. New to extension care? Read our complete hair extension aftercare guide for the full routine.