Magic Nail Glue is a cyanoacrylate-based nail adhesive from Magic Collection, sold in a small bottle around 0.10-0.11 oz, for attaching nail tips, extensions, and wraps, or for mending a cracked or split natural nail.
Cyanoacrylate is the same chemical family used in most fast-setting nail and craft adhesives. It cures on contact with moisture, so it sets within seconds once the tip or wrap is pressed into place. Magic Collection also sells a separate hypo-allergenic nail glue formula for people who react to standard cyanoacrylate adhesives.
Because it comes in a small bottle rather than a brush-on gel system, it works best used sparingly: a thin, even layer bonds well, while too much can pool, ooze past the nail edge, or slow the set.