Skinny Tan professional bronzing sprays are available in litre size bottles.The quality of the solution means a little goes a long way and you should get 10+ body applications from one litre. Like all Skinny Tan products the spray solution uses a natural tanning active combined with a natural cellulite active and beautiful added moisturisers. It is this combination that gives the duel effect of tanning and toning and is more gentle and less drying even on sensitive skin. The guide colour dries within a few minutes. The tan develops over 5 to 8 hours but it can't over develop so can be left on overnight.