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doi:10.1038/sj.ejcn.1602020

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Ask for the human clinical trial data, not animal studies or patient anecdotes
Although micro-needling involves creating tiny microchannels in the skin with needles, the copper peptide serums applied during the procedure remain on the surface layers and do not enter the bloodstream

The AbdomenThe Preferred Injection Site The abdomen is the best and most commonly recommended injection site for Retatrutide
