What Exactly is SLS?
Sodium Lauryl Sulfate (SLS) is a synthetic surfactant — a foaming agent derived from petroleum or palm oil. It's the chemical responsible for the thick, satisfying lather you get from commercial soaps and shampoos. It's also cheap to produce, which is why it's in nearly every mass-market personal care product in India.
But that satisfying foam comes at a serious cost to your skin.
What SLS Does to Your Skin
- Denatures skin proteins: SLS literally breaks down the proteins in your skin cells' outer layer, disrupting the structure of your skin at a molecular level.
- Increases skin permeability: A damaged skin barrier lets everything in — allergens, pollutants, bacteria, and other chemical ingredients from the same product.
- Causes irritant contact dermatitis: Redness, itching, and burning — especially around the lips, eyes, and genitals — are classic SLS reactions.
- Strips skin's natural oils: Removes sebum that protects and moisturises, leaving skin tight, dry, and cracked.
- Triggers canker sores: SLS in toothpastes is linked to mouth ulcer outbreaks — the same mechanism applies to oral tissue if soap residue isn't rinsed completely.
Is SLS Regulated in India?
SLS is currently permitted in Indian personal care products under BIS standards. However, concentration limits are not as strict as the EU's cosmetics regulations. Many brands use SLS at levels significantly higher than minimum effective concentrations to maximise foam — a purely sensory choice that harms your skin.
How to Identify SLS on Labels
Check ingredient labels for: Sodium Lauryl Sulfate, SLS, Sodium Laureth Sulfate (SLES — slightly gentler but still synthetic), Sodium Dodecyl Sulfate. If you see any of these in the first five ingredients, the product is SLS-heavy.
Natural SLS-Free Alternatives
All Glow Glitter natural soaps are 100% SLS-free. Our bars lather naturally through the saponification of plant oils — genuine soap rather than synthetic detergent. The foam is softer, but your skin will thank you within 2 weeks of switching.
Recommended: Kesar Diine Oatmilk Shine for dry skin, Charcoal Detox Multani Rocks for oily skin.