After making quite a few colour-changing lip glosses, I’ve found the amounts of TKB’s Presto Change-o recommended by TKB Trading are a lot. So, in this video I do some experiments to figure out precisely how much Presto Change-o is needed to create a slight-but-noticeable colour shift on the lips + can be re-applied throughout the day without building up to a semi-permanent neon pink by noon. (Plus my current favourite lip gloss formulation!)
