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1% GHK-Cu with 1% Acetyl Tetrapeptide-3 Shop GHK-Cu Hair Tonic The Safety Side of Things While GHK-Cu itself has a good safety profile, administering the peptide via injections carries some risk

As we age, our bodies can become deficient in key vitamins and minerals because we don't absorb them as efficiently as when we were young

Store it away from direct light

It does not carry the full range of growth hormone activity, which was the entire point of its design

However, reconstituted solution should be used within 30 days regardless of remaining volume

The choice typically comes down to your provider's preference, your absorption profile, and what your pharmacy stocks