do you mix ghk cu with bac water DIY GHK-CU Serum Hyaluronic Acid | Simple how much bac water to

Why different pharmacies produce different shades Compounding pharmacies operate independently, and each one may use slightly different formulations, B12 concentrations, B12 forms, or additional excipients

You don't have complete control but you can have sustained release with the b12 vitamin patch

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As a compounded medication it is not an FDA approved finished product, but rather is lawfullly manufactured by FDA approved, compounding pharmacies under the proper USP guidelines and relevant state pharmacy board regulations and its medical use is permissible as a compounded medication prescribed and administered under the supervision of a physician