Gelcare Klein Blue Gel Nail Polish in Blue. Gelcare Klein Blue Gel Nail Polish in Blue. A gel polish like no other, developed by top-notch artists specifically for easy at-home use. This color is a vivid, intense blue. Inspired, and named after the famous French artist in 1960.. Ease of application: Very easy Vegan and cruelty-free. 2 coats are recommended for a natural look, 3 coats are recommended for more opacity Free of the 10 most harmful chemical ingredients commonly found in gel polish. 15 ml/ 0.5 fl oz. GELR-WU27. GCLR0062.