What it Does Use the Gel Thinner as soon as you notice a change in viscosity of your Pro Base or Finish Gel. How to Use Use 2-5 drops of the Gel Thinner to help with thickening Pro Base and Finish Gel, or add a few drops after each mani to help prevent liquid thickening! Fluid Ounces: .5 oz. Country of Origin: Made in US Ingredients: Ethyl Cyanoacrylate, Vitamin E Acetate (Tocopheryl Acetate), Calcium Pantothenate