Green & Healthy

HEMA, Di-HEMA-TMHDC what does it mean?

2 min read

As you know, Green Flash complies with European regulations and excludes all controversial molecules from its formula.
This is particularly true for (meth)acrylate monomers, which include the molecules known as HEMA and Di-HEMA-TMHDC, banned from sale to consumers since September 2021 due to their sensitising potential.

You may have missed it, but according to new European regulations*, these two substances found in many gel polishes are now banned from sale to consumers and can only be used in salons by professionals.

The reason? Their sensitising potential.

What are the risks?

Indeed, upon contact with the skin, these very small and reactive molecules can penetrate the epidermis and cause severe allergic and inflammatory skin reactions. This is why only beauty professionals are now authorised to use them.

The catch is that other molecules of the same type, with the same sensitising potential, are still authorised and used in the formulas of many gel polishes.
To avoid taking any risks, Manucurist simply developed its Green Flash LED polish free of (meth)acrylate monomers.

Green Flash: free of (meth)acrylate monomers, non-sensitising, and 100% compliant with regulations.

and now stands out as an exception in the gel polish market.

From its launch in 2019, the Green Flash innovation was already 2 years ahead of regulations, carefully replacing petrochemical ingredients with bio-sourced alternatives and banishing all controversial molecules (allergens, endocrine disruptors...) from its formula.

Bio-sourced up to 84%, the Green Flash range is therefore an alternative to traditional gel polishes in terms of formula, while making no compromises on wear time and shine. In just 3 quick and easy steps, your manicure stays flawless for up to 10 days, and removal is gentle and easy thanks to a gentle, acetone-free nail polish remover. To enjoy this complete routine at home, you can start with a Green Flash™ gel polish kit.

🌱 At Manucurist, nail beauty comes with zero compromises!
The green revolution is rocking, be part of it ⚡️


A true revolution. Application is very easy, as is removal, and the wear time is excellent. I'm completely won over. I couldn't use traditional gel polish due to many allergies, and regular polishes didn't last. I recommend 100%. Amal S.

Allergic to one of the main molecules in regular polishes, I couldn't paint my nails anymore. I feel alive again!! Inès C.

Since I am allergic to classic gel polishes, I found my happy place with these polishes! No more allergies and the same beautiful finish. Sandy V.

Find out what makes Green Flash different

Learn more about the regulations