Glutathione vs GHK-Cu
Both are three amino acids long. That is where the similarity stops.
What is the difference
It is a coincidence worth noticing: the two most-requested skin-research materials in this catalog are both tripeptides. Glutathione is glutamate-cysteine-glycine, the cell's principal antioxidant, and it reaches the pigmentation literature through its interaction with tyrosinase and the melanin pathway. GHK-Cu is glycyl-histidyl-lysine bound to a copper ion, and it appears in collagen, wound-healing and tissue-remodeling research. Antioxidant chemistry on one side, copper-dependent remodeling on the other.
| Property | Glutathione | GHK-Cu |
|---|---|---|
| Sequence | Glutamate–cysteine–glycine | Glycyl–histidyl–lysine + copper ion |
| Active chemistry | The cysteine thiol (-SH) group | The bound copper ion |
| Studied in | Redox balance, phase II conjugation, tyrosinase and melanin pathway | Collagen synthesis, wound healing, tissue remodeling |
| Naturally occurring | In every living cell, at millimolar levels | In human plasma, declining with age |
| Standard lab readout | GSH/GSSG ratio as an oxidative-stress marker | Copper-peptide binding studies |
| Formats | 1500 mg vial | 50 mg vial |
| VND price (this catalog) | 2,100,000 VND | 1,750,000 VND |
Bottom line
Same length, unrelated chemistry: one works through a thiol group, the other through a copper ion. Nothing on this page claims a cosmetic or clinical outcome. Both are listed as non-clinical research materials.
Ask about Glutathione or GHK-Cu
Format, price and timing confirmed before payment. Free swabs + syringe with every order.
Common questions
Which of these peptides is better for research?
Neither is "better". Glutathione and GHK-Cu address different research questions through different mechanisms. The choice depends on the research protocol.
Can I order both peptides from this catalog?
Yes. Glutathione and GHK-Cu are listed as separate items. 2+ peptides = free bacteriostatic water 10 ml. Price and availability confirmed before payment.
Do I need a separate inquiry for each peptide?
No. You can ask about both in one Telegram message. Mention the names and formats. The manager will confirm availability, total and timing.