Themochromic pigmentssun ƙunshi micro-capsules waɗanda ke canza launi a sake juyawa.Lokacin da aka ɗaga zafin jiki zuwa ƙayyadadden zafin jiki pigment yana fitowa daga launi zuwa marar launi (ko daga launi ɗaya zuwa wani launi).Launi yana komawa zuwa launi na asali yayin da aka kwantar da pigment.