Sodium lauryl sulphate, often abbreviated as SLS, is one of several anionic surfactants frequently used in cleansing formulations. Its efficacy in creating lather and removing oils has made it a prevalent ingredient.
The term ‘sulphate’ refers to a broad chemical class, encompassing compounds with differing molecular structures and properties. Not all sulphates are created equal; their suitability depends heavily on specific type and concentration.
Primarily, sulphates function as detergents, reducing surface tension to allow water and oil to mix. This action facilitates the removal of dirt, sebum and product build-up from hair and scalp, leading to cleanliness.
Most conventional haircare products employ high concentrations of harsher sulphates, which can strip natural lipids and disrupt the scalp's delicate pH balance. Evera’s shampoos use a gentle, coconut-derived cleanser (sodium coco-sulfate), which is a sulphate, so we never call them sulphate-free.
These milder varieties are designed to cleanse effectively without causing excessive dryness or irritation. The key lies in balancing their surfactant properties with soothing botanicals and emollients, ensuring a gentle yet thorough wash.
Formulation science accounts for the overall effect of an ingredient, not just its isolated presence. A well-formulated product can mitigate potential drawbacks, delivering a balanced cleansing experience.
Consumers often scrutinise the INCI list for ‘sulphates’ as a blanket term, overlooking the nuances of individual compounds. Understanding the precise chemical name provides a clearer picture of an ingredient’s function.
Our approach centres on respecting the scalp’s microbiome and hair’s integrity. We aim for a cleansing action robust enough to refresh, yet gentle enough to preserve essential moisture and comfort.
Ultimately, the effectiveness and gentleness of a cleanser depend on its complete composition — a symphony of active ingredients working in concert.
