Jelly nails use sheer-pigment polish or gel so light passes through the colour and back out, giving a candy-glass depth an opaque cream can't produce. Because your own nail tone participates, the colour self-adjusts to your skin and grow-out arrives as a soft fade rather than a hard line.
The signature shades are fruit-flavoured — cherry, watermelon, lime, sea-glass blue — and the finish pairs naturally with encapsulated 3D charms. Ask for 'sheer, not opaque — like sea glass' to keep a generous tech from building it solid.