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Australian regulators seized a nasal spray being sold online that contained a peptide called MT2, nicknamed in media as the “Barbie-tan” peptide. The product was reportedly marketed for getting a tan without sun exposure, but officials found the spray had inconsistent doses — some bottles may have much more or much less peptide than labeled. The regulator, the TGA (Therapeutic Goods Administration), warned consumers and removed the product to prevent potential harm. MT2, short for melanotan II, is a synthetic peptide. In plain terms: it’s a small lab-made molecule designed to act like a natural body signal that can darken the skin by triggering pigment-producing cells. People use it because it can cause tanning without sun, and some sellers claim extra benefits that aren’t proven. It is not an approved medicine for tanning, and it’s supposed to be handled carefully because even small changes in dose can change effects. The report says the seized nasal spray had “wildly different doses,” which means testing showed a lot of variability between bottles. The story doesn’t describe a controlled clinical trial or a large study — it’s a regulatory seizure and warning based on product testing and safety concerns. That kind of finding doesn’t measure how effective MT2 is as a tanning aid in a reliable way; it simply shows that what people bought online might not match what’s on the label, which raises safety and quality problems. Why this matters is straightforward. If you’re tempted to use an unapproved peptide spray to tan, you can be getting far more or far less of the active ingredient than you expect. Too much could increase the chance of side effects; too little means you’re exposing yourself to unknown risks for little benefit. People with health issues, or those taking other medicines, are particularly at risk from unexpected reactions. Also, using unregulated products circumvents the safeguards that come with approved treatments. There are clear caveats. Melanotan II is not an approved drug in many countries; its safety profile isn’t well-established in controlled studies, especially for long-term use. Known side effects reported elsewhere include nausea, flushing, changes in skin pigmentation, and — in some reports — more serious concerns like moles darkening or new moles appearing. Because this particular product had inconsistent dosing, there’s added uncertainty about side effects and who might be harmed. The TGA seizure means people shouldn’t buy or use that spray, and anyone who already did and feels unwell should seek medical advice. Bottom line: regulators pulled an online MT2 nasal spray because doses were unreliable, highlighting that unapproved peptide products can be unsafe and should be avoided.
Source: 7NEWS