Either the GHK-CU isn't suitable for your biochemistry, your protocol needs adjustment, or an external factor is interfering
Best overall vitamin B12 supplement Form: Capsule | Type of vitamin B12: Methylcobalamin | Dose: 1 capsule up to 3 times per day | % of Daily Value (DV) per serving: 41,667% Thorne Vitamin B12 is manufactured in third-party certified, U.S.-based facilities and is rigorously tested multiple times throughout manufacturing to ensure purity, potency and quality
De novo mutation of cancer-related genes associates with particular neurodevelopmental disorders
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Depending on the product type, testing may include net content verification, multi-vial conformity testing, endotoxin screening, heavy metal analysis, microbial testing, and residual solvent analysis
FD&C Act Provisions that Apply to Human Drug Compounding | FDA