What Is HEMA-Free Gel Polish?

HEMA stands for 2-hydroxyethyl methacrylate. It is a small (meth)acrylate monomer used in some UV/LED-curable nail products as part of the system that forms the cured coating.

Whether a particular gel contains HEMA cannot be determined from appearance, price, wear time, or branding. Check the product's complete ingredient list and documentation for the exact formula rather than assuming that every conventional gel contains it.

Uncured HEMA can sensitise the skin. Once sensitisation develops, later exposure can trigger allergic contact dermatitis, so direct skin contact with uncured nail product should be avoided and the manufacturer's application and curing instructions should be followed.

HEMA causes problems through a process called contact sensitization. Here's what happens: uncured (liquid) HEMA molecules touch the skin around the nail — the cuticle area, sidewalls, or underneath the nail tip. Your immune system encounters these molecules, and in some people, it decides they're a threat. Once your immune system is "sensitized" to HEMA, it will react every time it encounters the chemical again.

Allergic contact dermatitis can involve red, itchy, swollen, blistered, or peeling skin; nails may also loosen or lift. Symptoms can occur beyond the fingertips, including areas touched by the nails. The British Association of Dermatologists advises avoiding direct skin contact with (meth)acrylate nail products and highlights the importance of appropriate curing and professional assessment.

Sensitisation can have lasting consequences because (meth)acrylates are also used in some dental and medical materials. A HEMA-free label is not a treatment for suspected allergy and does not establish that a product is free of other acrylates or methacrylates.

The EU rule: Commission Regulation (EU) 2020/1682 added HEMA and Di-HEMA Trimethylhexyl Dicarbamate to Annex III of the EU Cosmetics Regulation for nail products. The listed conditions are professional use only plus the package warnings "For professional use only" and "Can cause an allergic reaction." The entry does not provide a general 35% or other maximum concentration for these substances.

HEMA-free gel polish is formulated without 2-hydroxyethyl methacrylate. The other monomers, oligomers, photoinitiators, pigments, and additives vary by product, so the complete ingredient list and current product documentation matter.

Important distinction: HEMA-free does not mean chemical-free, acrylate-free, hypoallergenic, or allergy-proof. Other acrylates and methacrylates can also cause sensitisation. Removing HEMA alone does not prove that a finished formula has a lower allergy risk for every user.

Wear time, adhesion, gloss, cure time, removal, and skin-sensitisation risk are formula- and system-specific. Without relevant finished-product testing and formulation evidence, those outcomes should not be inferred from a HEMA-free claim.

The practical rule: treat HEMA-free as a narrow ingredient statement, not as a safety certification or a promise of performance. Evaluate the exact finished product and its intended system.

One of the biggest concerns people have about switching to HEMA-free is colour choice — "will I still find the shades I want?" With YISS, the answer is yes. The full range covers 60 shades across 9 colour groups. Use the interactive tool below to see every colour on a virtual hand and find your perfect HEMA-free shade.

Every shade has been matched to skin tones in our skin tone colour guide. For design inspiration with these shades, explore our colour-specific guides: pink, red, purple, black, white, and spring pedicure colours.

Not all brands advertise their HEMA status clearly. Here's how to verify:

1. Read the ingredients list. Look for "2-Hydroxyethyl methacrylate" or "HEMA" in the INCI list on the bottle or product page. If it's listed, the product contains HEMA.
2. Check the full ingredient information. A missing marketing claim does not prove that HEMA is present or absent. Ask the manufacturer or responsible supplier for the current ingredient list and product documentation for the exact shade or formula.
3. Do not treat CE marking as cosmetic approval. Ordinary cosmetic products should not use a CE mark to imply EU approval. Instead, verify the exact product identity, intended use, complete ingredients, label warnings and instructions, responsible person or supplier information, and supporting product documentation. See the EU technical document on cosmetic claims.
4. Check the intended user and warnings. For EU nail products containing HEMA or Di-HEMA Trimethylhexyl Dicarbamate, look for "For professional use only" and "Can cause an allergic reaction." Ask the nail professional which exact product system, lamp, and instructions are being used.
5. If symptoms occur, stop and seek assessment. Stop using the relevant nail products and seek appropriate evaluation from a dermatologist or another qualified healthcare professional. Do not assume that changing to HEMA-free will identify or manage the cause; formal assessment may include patch testing for multiple (meth)acrylates.