How does a sulphate-free shampoo like this one feel different when washing compared to regular shampoos?

Sulphate-free shampoos use milder surfactants that remove dirt and excess sebum without aggressively lifting the hair's natural lipid layer. You will notice less foam — especially in the first wash if you use styling products or have oily roots — but the cleansing is still effective. Because the formula also omits sodium chloride (salt), which is often added to thicken sulphate shampoos, there is no added drying effect from salt buildup on the hair shaft. The result after rinsing is usually a cleaner scalp with lengths that feel more supple rather than rough or tangled. If you are used to a "squeaky clean" sensation, it may take a few washes to adjust; that squeak often signals that the protective lipid film has been removed. With this shampoo, the macadamia oil helps replenish surface lipids during the wash itself, so hair tends to comb more easily when wet. For best results, apply to thoroughly wet hair, massage the scalp for 30–60 seconds, then rinse well. A second, lighter application can be useful if you wash infrequently or use heavy styling products.