"The skincare industry has long looked to the natural world to power its formulas. But now a number of brands are upping their sustainability by repurposing food waste into beauty ingredients. Here are the brands kickstarting a rubbish revolution.

Having started life as Optiat (an acronym for One Person's Trash Is Another's Treasure), UpCircle is on a circular skincare mission. Sibling founders Anna and William Brightman began by collecting used coffee grounds from London cafes for use in energising scrubs and caffeinated serums. 

Now UpCircle also uses salvaged chai tea spices in its soaps and next month a new line will feature recycled olive stones, apricot kernels and discarded argan shells."