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He explains what environmental pollution encompasses, where it fits within the broader hierarchy of longevity interventions, and why studying its health effects is uniquely challenging

PMC 5282855

Concerns about potential safety and efficacy issues have turned the peptide into a kind of gray-market celebrity, where consumer safety and efficacy are almost certainly a risk

People receiving tirzepatide-B12 products from compounders, telehealth companies, medspas, or anyone else should be aware that they may be using a potentially dangerous product with unknown risks

Red flags include suspiciously cheap prices

In cosmetics and topical applications, GHK-Cu may help promote tightening of loose skin, skin elasticity and firmness, wrinkle reduction, and photoprotection (mitigation of sun damage)