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Advantages Highest systemic bioavailability of any delivery method Precise, consistent dosing Best option for systemic effects (anti-inflammatory, gene modulation, tissue repair throughout the body) Well-established in clinical practice Rapid onset of action Disadvantages Requires injection technique (though subcutaneous injections use small, thin needles and are generally well tolerated) Requires proper reconstitution and storage Mild injection site reactions possible (redness, swelling) Requires physician prescription and supervision Oral GHK-Cu How It Works Oral GHK-Cu is swallowed as a capsule or liquid

KPAX 002 as a treatment for Myalgic Encephalomyelitis / Chronic Fatigue Syndrome ( ME / CFS ) : a prospective , randomized trial

Its worth noting, though, that animal proteins tend to provide amino acids that are more digestible than plant proteins