What is 3 Free? butter LONDON is a 3 Free company: no formaldehyde, no toluene, no DBP (dibutyl phthalate). This luxury nail lacquer is high-fashion, heavily pigmented and safe. butter LONDON believes in rock 'n' roll. Great Britain. And Fashion.What is 3 Free? butter LONDON is a 3 Free company: no formaldehyde, no toluene, no DBP (dibutyl phthalate). This luxury nail lacquer is high-fashion, heavily pigmented and safe. butter LONDON believes in rock 'n' roll. Great Britain. And Fashion Color(s): artful dodger, big smoke, blagger, bluey, henley regatta, royal navy, victoriana. Brand: Butter London. Style Name: butter LONDON '3 Free' Nail Lacquer. Style Number: 315191_3.