Sulphates and your scalp
Sulphates are effective cleansers, possibly too effective for some scalp types. Understanding which category you fall into helps you choose a shampoo that actually cleans without disrupting your scalp's balance.
Sulphates (like Sodium Lauryl Sulphate or Sodium Laureth Sulphate) are surfactants. They are extremely effective at removing oil, product buildup, and debris from the scalp. That effectiveness is both their value and their limitation.
For oily or low-porosity hair, sulphate-based shampoos can be a genuinely useful reset. They strip the scalp thoroughly, which can actually prevent certain scalp conditions linked to excess sebum.
For dry, sensitive, or reactive scalps, and for hair that already lacks natural oil, sulphates can strip too aggressively, disrupting the scalp's acid mantle and triggering overproduction of oil as a compensatory response.
Milder alternatives include Sodium Cocoyl Isethionate, Cocamidopropyl Betaine, and Sodium Lauroyl Sarcosinate. These are gentler surfactants that cleanse without the same level of stripping. Many people with textured or dry hair do well with these.