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A new era of cellular regeneration and revitalization.
NL-GHK-CU is the world’s first supplement containing TETRAPEPTIDE + Copper (Cu), synthesized using our patented NL-PEPTIDES™ technology, known as the new generation of peptides.
The unique combination of GHK and copper ions supports the processes of repairing skin, hair, and tissues, activating the natural production of collagen and elastin.
The formula, with maximum purity, stability, and bioavailability, was developed to precisely support cellular regeneration and protect against oxidative stress.
Each capsule contains a pharmaceutically pure product — synthesized in Europe and tested in accredited laboratories in Poland, Germany, and Switzerland.
💡 The result? Renewed skin, stronger hair, healthier tissues, and a visibly younger appearance.
Scientific technology you can trust.
Why?
Why is our peptide so effective?

How it works?
What is it and why does it work?
REVIEWS
What do our customers say about Synthagen?
Can NL-GHK-CU be used long-term?
Is NL-GHK-CU suitable for both men and women?
Are there any side effects?
How should NL-GHK-CU be taken?
Can NL-GHK-CU be combined with other peptides or supplements?
Does NL-GHK-CU contain any banned or doping substances?
Frequently Asked Questions
FREQUENTLY ASKED QUESTIONS









