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Lyophilized (powder) storage Before reconstitution, GHK-Cu powder is remarkably stable when stored correctly
The longer estimate (30 days) represents the outer limit
Product quality: Two 1% GHK-Cu serums can produce very different results based on vehicle, pH, packaging, and storage
Our bodies might naturally produce glutathione, but luckily we can also get some help by utilizing glutathione we take in through food
Using copper peptides alongside strong acids, vitamin C, or retinoids may reduce topical GHK-Cu peptide benefits for skin rejuvenation or increase irritation
That process takes weeks to months, not days
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