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For a full clinical comparison, see the retatrutide vs tirzepatide guide

Some more stable peptides can last 4-6 weeks, while fragile ones may show significant degradation by week 2

CAUTIONS / WARNINGS

UK guidance (MHRA and NICE) advises checking B12 levels in patients on metformin who develop symptoms of deficiency (anaemia, neuropathy) and considering periodic monitoring in those on long-term therapy

While Vitamin C with Glutathione has been shown to have various health benefits, it is important to remember that supplements and dietary changes should be considered as part of an overall health plan and not as a substitute for professional medical treatment

Diabetes, Obesity, and Metabolism, 23 (10), 2242-2250