Challengel Builder Gel – hard, HEMA-free and ideal for nail extensions
 Challengel is a high-quality, strong builder gel – developed for those who want to combine fast work with maximum stability and long-lasting results. It is ideal for nail extensions with forms, strengthening the natural nail, and the no-file technique .
 The light consistency ensures that the gel doesn't string during application, smooths itself quickly and evenly, and significantly reduces filing. Thanks to its high firmness, the tunnel can be pinched after a short time and remains stable throughout the entire wearing period. The result is a durable finish lasting up to 5 weeks .
 The modern formula is TPO- and HEMA-free . This reduces the risk of skin irritation, making the gel an excellent choice even for sensitive customers.
 Characteristics

 
 High strength – particularly shock and load resistant
 
 Light consistency – self-leveling and pleasant to work with
 
 Tunnel pinchable – after approximately 13 seconds
 
 Ideal for the no-file technique
 
 TPO and HEMA-free formula – lower risk of skin irritation
 
 Excellent adhesion to the natural nail

 Application areas

 
 Nail extensions using forms
 
 Strengthening of the natural nail
 
 Refill and filling in of the overgrown area

 Technical data

 
 Consistency: light
 
 Strength: high
 
 Coverage: 80–100%
 
 Tunnel pinchable: Yes, after approximately 13 seconds
 
 Curing time: 60 seconds (UV/LED lamp ≥ 48 W)
 
 Formula: TPO and HEMA free