HEMA (Hydroxyethyl Methacrylate) helps gel stick, flex, and apply smoothly. It isn’t harmful when cured—overexposure is, especially when gel hits the skin or cures incorrectly. Cheap, unregulated gels often have high HEMA levels and raise allergy risks. Signs of sensitivity: redness, itching, blisters, or lifting. HEMA-free works for sensitive clients but may lift more. Bottom line: HEMA isn’t the problem—bad habits are. [https://youtube.com/@nailfluency_by_amy?si=J6fLhl88X1ffpOPi](https://youtube.com/@nailfluency_by_amy?si=J6fLhl88X1ffpOPi)