This is a HEMA free product from Silcare: Base One gels were created according to a modern recipe that provides extremely durable nails. The mass is both durable and flexible to mimic the natural nail. The mass has very good adhesion to both tips and the natural nail plate. Base One - Cover is available in four colors: Light Cover, Cover, Medium Cover, and Dark Cover to find each customer's natural color. The product is used to obtain an even, natural color on the nail but can also be used as a builder. You can easily mix this product with other gels or acrylics. Thanks to its medium-thick consistency and its self-leveling properties, a perfect result is achieved quickly and easily. Information: Medium Viscosity. Self-leveling Acid-free 1-phase Not tested on animals. No pain during curing Instructions: First, apply an even layer of gel over the nail and cure it. Curing time: UV lamp for 2 minutes, LED 30-60 seconds. Wipe the nail surface with cleanser after curing to remove the dispersion layer. Note - To get a nail that can withstand all of life's challenges, we recommend that you use a primer and then a bonder before applying the gel. We recommend "Base one - Primer" and "Base one - Bonder" for this. Facts: Quantity: 30 grams Name: Cover Series: Builder - A series consisting of 20 different builders. Product line: Base one Manufacturer: Silcare Made in EU.