I.Am Hema Free Ridge Filler Base is perfect for clients who are allergic to HEMA. Ridge filler base fills in unevenness of the nail and makes the nail surface smooth. This base has excellent adhesion to the nail plate. Curing time – 120 sec. UV / 60 sec. LED.; HEMA/TPO FREE formula; Vegan; Paraben-free Suitable for pedicure; Easy to apply; Can be removed by dissolving; Excellent durability up to 4 weeks; Does not damage natural nails;