The strengths are already fixed at mg/mL on the label, and the vial is kept refrigerated
Hsu CC, Wang H, Hsu YH, et al
The capsule format (5mg per capsule, 60 capsules) provides pre-measured, consistent dosing units suited to oral administration research protocols, while the powder format supports custom solution preparation for in vitro, parenteral, or variable-dose experimental designs
Oral GHK-Cu supplements are typically sold as dietary supplements and aren't subject to the same regulatory oversight as prescription medications
Thyroid medications, by contrast, work by replacing or blocking thyroid hormone production directly
This makes it stronger and lets it turn on many different receptors at once, including MC1R, MC3R, MC4R, and MC5R