butter LONDON was founded by Sasha Muir, aiming to blend high-fashion nail color with toxin-free formulas. All products are completely toxin free and contain no formaldehyde, toluene or DBP and boast all the best colors with saucy names to boot! Color - Yummy Mummy • butter's 'magic' shade - a medium beige that looks good on any skin tone • 0.4 fl oz nail lacquer • 3 Free - contains no formaldehyde, no toluene, no DBP • Squared top hides standard, easy-to-grip brush handle.