Is sodium lauryl ether sulfate bad for hair?
At concentrations below 0.5%, the hazards of this chemical are not significant. However, when the concentration exceeds 0.5%, Sodium lauryl ether sulfate SLES can cause skin dryness. Many cleansing products with strong foaming effects far exceed this 0.5% threshold. So, how exactly does Sodium lauryl ether sulfate SLES harm your health?
Firstly, it strips away the natural oils that protect the skin's surface, then damages skin proteins, including collagen, leading to skin sensitivity. This makes it easier for environmental pollutants to penetrate the deeper layers of the skin, causing other skin problems. Shampoos containing this ingredient are also likely to cause dandruff and scalp itching.