Tried with five of my nail polishes this topcoat. p2, Catrice, Essence, Manhattan, Essie. None of Topcoate has let it dry the paint quickly. I have 2 layers and only 1 layer of nail polish tried + 1 layer Topper. The paint formed amounts of bubbles or slid laterally from the nail, as würder the Topper dilute it and while the nail polish (for comparison) without Topper after 15 minutes was determined, I could with the naked Finge the paint on the Topper was slide off. The spray con p2 (Quick Dry) works properly, however. (Photo only one of many examples, at worst it was on the essie: the paint literally slid down into the lateral nail bed)