Cosmic Polish
Polish Thinner
Polish Thinner
Bring your favourite nail polishes back to life with the Cosmic Polish Nail Polish Thinner.
Nail polishes can naturally develop a thicker consistency over time as a result of exposure to air or due to the presence of heavier pigments in the polish. Adding a few drops of nail polish thinner when this happens is an easy way to bring your polish back to its original state!
This simple yet effective blend restores the smooth, flowing consistency of thickened polishes in seconds. Formulated with just two essential ingredients - Butyl Acetate and Ethyl Acetate - our thinner gently revives your polish without compromising quality or shine, and is guaranteed to work with any brand of nail polish.
Perfect for extending the life of your cherished Cosmic Polish shades and keeping them fresh, vibrant, and easy to apply.
Easy to use: Just add a few drops and shake vigorously to distribute the thinner.
Note: Not compatible with Lift Off peeling base coat.
Couldn't load pickup availability



I have some old thickened polishes and this worked magic in making them wearable again. A little amount goes a long way!
Revived my old multichromes from the early 2000s. Beautiful!
I had two quick drying top coats that had become really thick, stringy and bubbly. Two drops of thinner in each and they're both perfect again, just like when I first opened them!
Works like a dream ❤️
I had a far few bottles that were getting thick and gluggy. Oldest one was a Maybelline rose gold glitter from like 2001 and I’m surprised it managed to thin it a little for me to get one last swatch of it! The drops definitely work better in non-glitters, unfortunately it’s all my glitters that need it way more.