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GIP also enhances insulin secretion and may have additional effects on metabolism, though the precise mechanisms contributing to weight loss are not fully understood

Evidence comparing different L-carnitine formulations in large human trials is limited

These functional markers are more sensitive indicators of tissue B12 status but have limited availability and can be affected by renal impairment, pregnancy, and hypothyroidism

Both require further human clinical trials to fully establish their therapeutic potential, though GHK-Cu's existing commercial use in dermatology provides some real-world validation of its skin-related applications

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Take one daily with water