GHK-Cu 50 mg vs 100 mg: which vial is better value?
Research context reviewed 14 October 2026The 100 mg GHK-Cu vial gives you twice the labelled material for A$21 more. At PEPTALIAS's sale prices checked on 13 October 2026, one 100 mg vial costs A$69.99; two 50 mg vials cost A$97.98. If your research needs 100 mg in one container, that is an A$27.99 saving.
The 50 mg vial costs less upfront and gives you a smaller separately sealed quantity. The choice is total material versus separate containers. It is not a different copper peptide.
GHK-Cu 50 mg and 100 mg: the price comparison
| What you are buying | 50 mg vial | 100 mg vial |
|---|---|---|
| Labelled GHK-Cu amount | 50 mg | 100 mg |
| Displayed vial size | 3 mL | 3 mL |
| Sale price checked 13 October 2026, AUD | A$48.99 | A$69.99 |
| Cost per labelled mg | About A$0.98 | About A$0.70 |
| Containers for 100 mg total | Two | One |
| Cost for 100 mg total | A$97.98 | A$69.99 |
Prices were checked during the 30% Spring Sale. These are product prices before delivery or other discounts; check the live listing before ordering. Cost per mg is a price comparison based on the label, not a measurement of purity or usable yield.
For the same 100 mg labelled total, the larger vial costs about 29% less than two 50 mg vials. That is a separate comparison from the site's 30% sale discount.
When the 50 mg vial makes more sense
Choose 50 mg when your project needs only 50 mg, or when separately sealed quantities matter more than the lowest unit price.
Two 50 mg vials let you open one container while leaving the other sealed. That changes how you allocate material between projects or research sessions. It does not establish how long either vial stays stable; that needs storage and stability evidence for the supplied material.
If you only need one 50 mg vial, buying 100 mg means spending another A$21. A lower cost per mg is useful only if the extra quantity fits the project.
When the 100 mg vial makes more sense
Choose 100 mg when you need that quantity in one container and do not need to divide it into separately sealed vials.
The useful comparison is one 100 mg vial against two 50 mg vials, not simply A$69.99 against A$48.99. You get the same labelled total for A$27.99 less, but only one original sealed container.
Does 100 mg mean a stronger or different GHK-Cu?
It means more labelled material in the vial. It does not identify a different molecule or guarantee a stronger research effect.
GHK-Cu's collagen research interest includes a 1988 experiment in which cultured fibroblasts produced more collagen, not a comparison of commercial 50 mg and 100 mg vials. For the compound itself, read what GHK-Cu is and what the studies measured.
Also keep mg and mL separate. The 50 mg and 100 mg listings both use a 3 mL vial. Milligrams describe the listed material amount; millilitres describe the listed container size. The 100 mg option is not a larger bottle or a ready-made 100 mg/mL solution.
Check the document as well as the price
Both strengths link to the same GHK-Cu supplier PDF. It lists 50 mg and 100 mg formats. Its final page describes it as a reference template for customer consultation.
The PDF alone does not establish a batch-specific result for the vial you receive. Before treating reported results as evidence for your order, ask for the link between the vial's batch, the tested sample and the document. Our laboratory-report guide explains those checks.
Which GHK-Cu vial should you choose?
50 mg: lower upfront spend, less material, or a preference for separate sealed containers.
100 mg: lower cost per labelled mg when you need 100 mg in one container.
Both sizes showed an ordering control on 13 October 2026. Availability can change; use the selected variant's live price and availability rather than assuming the two sizes have identical stock.
Choose your GHK-Cu vial size →
For more product comparisons and buying checks, explore the PEPTALIAS research guides.
PEPTALIAS products are for laboratory research only, not human or veterinary use.