Injectable Peptides: Out of the Back Alley and Into the Light? Berkley Lifesciences Nasal sprays containing the 'Barbie Drug' melanotan are very, very dangerous and completely unregulated, according to leading dermatologist. Experts say there has been a surge in the use of the illegal tanning aid Fitness influencers promote risky, unproven fitness products called peptides online and health experts are ringing alarm bells Capital Current Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Dublin woman earned 20,000 from banned tanning injections The Irish Times Injecting peptides you bought online? 'Think twice,' Health Canada warns National Globalnews.ca