TWO TICKS AND NO DOG (thermal)

The color shift is so satisfying to watch—it goes from deep purple to a soft aquamarine as I wash my hands. Knowing it'll keep transitioning for up to two years in a dark drawer makes me want to buy more bottles.

I love how the purple shifts to aquamarine when I move from a cold room to a warm one—it's like having two polishes in one bottle. The thermal effect still works after six months of use, which is impressive for a color-changing polish.

The color shift from purple to aquamarine is so satisfying when I move from my cold kitchen to a warm room. I love that the thermal effect is supposed to last for years if stored right, so I'm keeping it in a dark drawer.