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Three factors are especially critical for the KLOW blend because they specifically affect GHK-Cu: protect the copper peptide from light to avoid photo-oxidation, keep the pH in the optimal range of about 5.0 to 6.5 and avoid pH extremes, and minimize freeze-thaw cycles, as these favor aggregation and oxidation

Some had virtually no DPA, while others provided nearly 100 mg per serving

Brain behavior Immun (2011) 25:397407

The thicker, cream-based textures of masks create an occlusive barrier that enhances penetration of the Pure Copper peptide deep into the scalp tissue, while additional ingredients such as hyaluronic acid, ceramides, and botanical extracts provide comprehensive scalp nourishment

DOI: 10.1038/s41467-017-01114-1 Formulation strategies for therapeutic peptide stability pH, ionic strength, co-solvency