Why two 98 per cent figures can describe two different materials

Published 24 October 2026 · REVIVE LAB UAE Research Desk · 5 min read
Two certificates can be compared only where they measured the same thing the same way. Purity by HPLC depends on column, gradient, wavelength and integration; identity depends on which mass convention; copper content may be absent from one entirely. A 98 per cent on one and a 98 per cent on another are the same number and not necessarily the same material.

What to line up

HPLC method conditions. Detection wavelength, since a copper complex seen only in the ultraviolet may include copper-free peptide in its main peak. Mass convention, monoisotopic or average. Whether copper content, water, counterion and net peptide content are reported at all. A certificate missing any of these has left the comparison open.

The absence of a copper content line is the commonest gap for this compound.

What a gap means

Not that the material is bad, but that the claim is unverified on that axis. A supplier reporting purity without copper content has shown the peptide is clean and not that it is fully complexed. A reader comparing two such certificates is comparing two incomplete descriptions.

Asking for the missing lines is reasonable; a supplier who cannot provide them has not measured them.

What this catalogue reports

Identity by mass with the isotope pattern, purity by HPLC with conditions, copper content, water and counterion where measured, per lot, on request.

GHK-Cu is supplied by REVIVE LAB UAE for laboratory research use only, with identity by mass spectrometry and purity by HPLC for the batch. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.

What it costs

FormatStrengthPriceAvailability
GHK-Cu Pack50 mgAED 425In stock

Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.

Frequently asked

What to line up?

HPLC method conditions. Detection wavelength, since a copper complex seen only in the ultraviolet may include copper-free peptide in its main peak. Mass convention, monoisotopic or average. Whether copper content, water, counterion and net peptide content are reported at all. A certificate missing any of these has left the comparison open.

Does REVIVE LAB UAE provide dosing guidance?

No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.

How fast is delivery in the UAE?

Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.

GHK-Cu Pack — in stock, dispatched from Dubai
HPLC-verified, lot certificate on every carton, 24-hour delivery nationwide. Browse the catalogue → All peptides UAE

Related reading

Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.