Wikipedia
Macrolane
Macrolane is a body-contour filler marketed by Q-Med in the UK since early 2008. It claims to be a less invasive alternative to surgical breast enlargement, offering an increase of one cup size through injections that take between 30 and 90 minutes — colloquially referred to as the "30-minute boob job".
More recently, Q-Med have discontinued promoting Macrolane as a breast enhancer due to the lack of consensus amongst radiologists regarding how to examine breasts that have been injected with filler.