Should you put gel polish on your skin to check for allergens?

A common question we hear is whether you should apply o esmalte em gel to the skin as a way of checking for alergias, similar to a patch test.

Many people wonder if using (gel/ esmalte on the skin is a safe way to do a patch test. In fact, gel polish should never be applied directly to the skin to check for allergies.

Veja por quê:

• Gel polishes contain potent alergênicos such as acrilatos e metacrilatos. These can cause dermatite alérgica de contato if they touch the skin.
• Patch testing with uncured gel is unsafe because the produtos químicos are designed to polymerise under UV/LED light on the placa ungueal, not on the skin. On skin, they can penetrate and sensitise, leading to lifelong allergies.
• Once sensitised, even small exposures (including other products like dental materials or medical adhesives) can trigger reactions.

Safe approach instead

• Allergy testing for gel products should only be done through a dermatologista using a formal medical patch test system (they use tiny amounts of purified allergens under controlled conditions).
• For everyday salon practice, the correct safety method is avoiding skin contact entirely, applying gel only to the nail plate, and cura fully.

👉 So the answer is: No, do not patch test gel polish on skin. If there’s a concern about allergy, refer to a dermatologist for proper testing.