The reason you should switch to a sulfate-free shampoo is because using a sulfate-based shampoo can negatively affect both your hair and scalp. Sulfates tend to remove oils and moisture that your hair and scalp rely on, resulting in dryness. This dryness can lead to discomfort, especially if you have a sensitive scalp. Discover Pureology Hydrate, our collection of products for dry hair. Furthermore, when your hair lacks moisture, it becomes susceptible to environmental factors such as humidity, which can harm your locks. This damage can even impact the structural integrity of your hair strands, ultimately causing frizz. Browse our range of anti-frizz hair products. If your hair is colour-treated, sulfates can compound the issue by fading the colour, leaving your hair with a lacklustre appearance. The highly concentrated formulas in our vegan, no-sulfate shampoos produce a rich lather and effectively cleanse without compromising on colour care.