Shampoo is important as it helps in the removal of dirt, debris, and odours, such as smoke or sweat effectively. The hair gets its oil from sebaceous glands that secrete oil called sebum, which keeps the hair moisturised. Moisturised hair is less likely to break or look dry and frizzy so it is important not to over cleanse the hair and the skin on the scalp. Finding a gentle fragrance free shampoo will help you to cleanse the hair whilst retaining it's natural oils and maintaining the scalp's skin barrier to reduce dryness and flakiness. We think we've found some of the best shampoo without fragrance and best sulfate free shampoos in the UK.