United States: Schedule III controlled substances Illegal to possess without prescription Illegal to distribute Prescriptions only for specific medical conditions Not prescribed for muscle building/athletic performance Penalties for possession (US): First offense: Up to 1 year prison, minimum $1,000 fine Second offense: Up to 2 years prison, minimum $2,500 fine Distribution: Much harsher (up to 5 years, $250,000 fine) Other countries: UK: Class C drugs (illegal to supply, legal to possess for personal use) Canada: Schedule IV (illegal without prescription) Australia: Schedule 4 (prescription only) Mexico: Legal over-the-counter (but smuggling back to US illegal) How people acquire them: Underground labs (UGLs) - quality varies wildly Black market from gyms/dealers - risky, often fake Online sources - legal risk, customs seizure risk Medical tourism - travel to countries with lax laws Prescription for legitimate medical need (TRT for low T) Quality concerns: No regulation of underground products Underdosed or fake products common Contamination risks Heavy metal contamination reports Completely wrong compounds sometimes Peptide legality Legal status: Gray area in most countries

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It is commonly prescribed for individuals with diabetes
Quickstart Highlights GHK-Cu is a naturally-occurring copper tripeptide glycyl-L-histidyl-L-lysine bound to copper(II) that the body produces and that declines with age [1] [2]
doi: 10.4049/jimmunol.0901737 159 GhislettiSMedaCMaggiAVegetoE
China is the major contributor to the Asia Pacific GLP-1 targeted peptide weight loss drugs market due to its large population and rapidly increasing prevalence of obesity and diabetes