A very effective and at the same time extremely delicate strengthening gel base dedicated to very thin, weak and damaged nails, for use under gel varnishes. It perfectly harmonizes with the natural plate, evens out unevenness, replenishes any damage and creates a flexible, extremely durable protective coating. It covers the tired plate with a 'dressing', strengthens it, hardens it, extends the durability of the manicure and completely eliminates the risk of airing, crushing and delamination of gel varnishes, even in the case of very long nails.