Ethyl Tosylamide
A film-forming resin for nail polish. It gives shine, adhesion to the nail and lasting wear. It does not affect skin in the finished polish.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Ethyl Tosylamide (INCI same) is a film-forming resin used in nail polish. It provides shine, adhesion to the nail and wear resistance for the coating. On efficacy: this is a functional film and finish ingredient, not a skincare active. It does not treat skin. Its value is in how the polish looks and lasts, and at that it delivers. It is applied on the nail and not meaningfully absorbed through it. In the dried product it barely contacts skin. It can be used during pregnancy and breastfeeding. Tolerance is high: low irritation and allergy potential. Worth knowing: this molecule is a sulfonamide derivative, and people with a known sulfa allergy may prefer polishes without it, though the risk from contact on the nail is low. Most people have no problem.
Frequently asked questions
Is Ethyl Tosylamide safe during pregnancy?
Ethyl Tosylamide is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Ethyl Tosylamide for?
Ethyl Tosylamide suits: normal, dry, combination, oily, sensitive.
What is Ethyl Tosylamide and what does it do in cosmetics?
A film-forming resin for nail polish.
What's the INCI name for Ethyl Tosylamide?
The INCI name is Ethyl Tosylamide.
See Ethyl Tosylamide in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar role in the formula
Other functional ingredients
Ethylcellulose, Ethylene/Propylene/Styrene Copolymer, Ethylhexyl Palmitate, Ethylhexyl Stearate, Oleth-20, Polyurethane-64, Sucrose Cocoate, Calcium Chloride
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