From my Rule of Three Collection:
A tri-thermal polish – Indigo blue in its cold state transforming to a bright purple then through to a light green in its warm state.
Underlying micro shifty flakes also gives it an extraterrestrial pink/gold/green shimmer under different lighting. Pictured with 2 coats and topped with Elite Top Coat.
Swatched by myself.
The thermochromic pigments I use are heat sensitive and will change from one colour to another at approximately 30°C.
Thermochromic pigments are active for up to 12months. Colour change may not be as evident after this time.
To prolong the life of your thermal polish, I suggest you store bottle in a cool/dark environment, as this preserves the pigments.