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The difficulty is that peptides like semaglutide are large, complex, and sensitive molecules that are prone to degradation and are not easily absorbed by the gastrointestinal (GI) tract

Anti-Aging & Skin Care Peptides GHK-Cu (Copper Peptide) Enhances collagen production, wound healing, and skin elasticity

Common reasons include a BMI below the eligibility threshold, contraindicated medical conditions (such as medullary thyroid cancer history or MEN 2), pregnancy, or concerning drug interactions

Retatrutide remains an investigational medicine with no MHRA or EMA marketing authorisation as of early 2025

Moisture matters