Oral capsules and powders are cheapest to produce and distribute
Regul Toxicol Pharmacol 32(1):5667 Park BK, Boobis A, Clarke S, Goldring CE, Jones D, Kenna JG, Lambert C, Laverty HG, Naisbitt DJ, Nelson S, Nicoll-Griffith DA, Obach RS, Routledge P, Smith DA, Tweedie DJ, Vermeulen N, Williams DP, Wilson ID, Baillie TA (2011) Managing the challenge of chemically reactive metabolites in drug development
The trace mineral copper in GHK-Cu has been shown to have anti-inflammatory properties that help soothe skin, as well as wound healing benefits for damaged tissue
glutathione (see below) is consistent with this interpretation
These actions protect gut tissue from damage and support optimal digestion and nutrient absorption
Part 3: Claims & Verification Claim 1: GHK-Cu is an endogenous peptide with regenerative and anti-inflammatory properties, and its systemic levels decline with age