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When a compound has no completed human trial, there is by definition no safety data in any subgroup no pregnancy data, no hepatic-impairment data, no interaction data with common metabolic or endocrine medications
I tell everyone to buy this
You're pregnant or plan on becoming pregnant while using B12 injections
If you are suffering from fatigue, low energy, or weight gain B12 shots would be worth considering
Side Effects and the Copper Uglies Explained GHK-Cu has a strong safety profile in topical research, but a small subset of users experience a transient phase known as the copper uglies. A 2023 clinical safety review covering 12 studies and 512 participants reported that the most common side effects of topical GHK-Cu were transient and mild
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