ghk cu contraindications GHK-Cu Scalp Solution Can GHK-Cu Copper Peptide Tighten

Conversely, some studies show that a deficiency in vitamin B12 may cause appetite loss, potentially leading to weight loss if left untreated ( If youre low or deficient in B12, your healthcare provider will likely recommend oral vitamin B12 supplements or injections to increase your blood levels ( summary Low levels of vitamin B12 can cause megaloblastic anemia, which is characterized by shortness of breath, headaches, and fatigue

doi:10.1111/and.13033

Copper peptides should be avoided by anyone with a known copper allergy, those with active inflammatory skin conditions like a rosacea flare or severe eczema, anyone whose skin barrier is severely compromised, and (until more research is available) those who are pregnant or breastfeeding

PMID 2024727