tirzepatide is the same as zepbound vs New Zepbound Weight-Loss Drug Vials

The "minimal initial benefit" group (approximately 5-10% of users) reported limited improvements during treatment making discontinuation effects irrelevant, typically explained by inadequate product quality with degraded or low-concentration GHK-Cu, inappropriate application technique reducing absorption, unrealistic expectations exceeding what any topical can achieve, severe underlying pathology requiring medical intervention beyond cosmetic peptides, or individual non-responsiveness to copper peptide treatment for genetic or physiological reasons

Both contain the same active ingredient and meet pharmaceutical quality standards

J Neurophysiol 2001

Low serum vitamin B 12 is common in coeliac disease and is not due to autoimmune gastritis