ghk-cu seeum Facial Serum generation firming serum from Nardos Natural — as seen on Shark Tank GHK-Cu Serum — Professional Copper

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Keep from freezing

Some cereals and plant-based milks have added B12

Avoid repeated freeze-thaw cycles to help preserve sample integrity

Interestingly, one study found that 58.3% of hypothyroid patients with B12 deficiency who received intramuscular vitamin B12 injections monthly noted an improvement in symptoms

Important formulation note: When using topical GHK-Cu products, avoid combining them in the same application session with strong vitamin C, retinol, or alpha hydroxy acids these can interact with copper peptides and reduce their effectiveness or cause irritation