What is the Gel-X extension? This is the world's fastest and easiest way to lengthen nails to the size and shape you want! wedding, filming, filming, vacation ...) The secret is the use of capsules made of gel, guaranteeing an average hold of 3 to 4 weeks, without ever damaging the nails. This treatment allows you to fill in from your initial capsule application in order to fill in the natural regrowth. So you can change colors, nail art, effect... > This filling can only be done on Flash extensions (no gel extensions) with a maximum regrowth of 3 WEEKS. Please check your previous appointment carefully, Gloss'up reserves the right to modify your appointment on D-Day without compensation. > The filling of flash extension is not a LONG TERM solution, it can be carried out 2 or even 3 times maximum. Naturally, there will be no more capsules afterwards and you will therefore have to select "removal of gel X" then a "new application of gel x". Nail art supplements add to the next step! Nail extensions (gel & flash extension), refills & gel reinforcements are NOT permitted for anyone UNDER 16 YEARS OLD, even with parental consent.