You know those insane "weight-loss" ads that always include pictures of amazing body transformations? It doesn't take a genius to know that it's mostly nothing but lies and Photoshop.

If you don't believe us, then check out the transformation photos compiled in the PsychGuides inforgaphic below, which reveal the countless tricks that advertisers use to convince you that their products work. If anything, it's a good reminder on why everyone should stop assuming all those amazing bodies found lingerie ads and fashion shoots are the real deal.