Two documented compoundsThird-party testedCertificate records availableResearch use onlyFixed two-product setSave 10% as a complete set
Two-compound setRadiance Duo with GHK-Cu and L-Glutathione research vials
Research bundle · fixed set

Radiance Duo

$89.98$80.98SAVE 10%STACK BUNDLE

A two-compound set for laboratory research involving copper-peptide dermal models and intracellular redox chemistry. The vials are separate. This page does not describe a combined mechanism.

GHK-Cu50 mg · one vial
L-Glutathione1500 mg · one vial
Purchase option

You save $9.00. The 10% bundle price is shown again in your cart and checkout.

For laboratory research use only. Not for human or veterinary use.

About this set

Radiance Duo is a fixed set of two separate research vials: GHK-Cu 50 mg and L-Glutathione 1500 mg. Each compound keeps its own identity, labeled strength, and certificate record. The set is sold as one catalog item. Components cannot be removed or swapped in this version.

GHK-Cu 50 mg · L-Glutathione 1500 mg

Set
Two separate vials
Form
Lyophilized powder
Bundle price
$80.98
Saving
10% off the two singles
Independent documentation

Two compounds. Two certificate records.

Open the certificate associated with each component. Certificates report the specific sample and lot tested; the certificate strength is shown plainly below.

0150 mg certificate
GHK-Cu research vial

GHK-Cu

Bundle strength
50 mg
Certificate sample
50 mg
Reported purity
99.75%
Lot
C3M9KQ
021500 mg certificate
L-Glutathione research vial

L-Glutathione

Bundle strength
1500 mg
Certificate sample
1500 mg
Reported purity
99.40%
Lot
CPE57R

Certificate scope: Results apply only to the sample and lot identified in each document. A lot-specific certificate should be checked against the vial received before research begins.

0
Compounds
Separate vials, not a blend
0
Vials in the set
One labeled unit of each compound
0%
Bundle saving
$80.98 instead of $89.98
0
Certificate records
Both matched to the vial strength
How It Works

How the two compounds are studied

Each vial is cataloged on its own research pathway. The diagram names the two components. It does not describe a combined mechanism.

Two separate research materials · illustrative
GHK-Cu · 50 mg
Copper-binding tripeptide

A three amino acid copper peptide first isolated from human plasma in 1973. Studies have measured collagen and glycosaminoglycan production in fibroblast culture, copper delivery to copper-dependent enzymes, and changes in gene expression.

L-Glutathione · 1500 mg
Intracellular redox

A thiol tripeptide of glutamate, cysteine, and glycine. Studies have measured the GSH:GSSG ratio, glutathione peroxidase and glutathione S-transferase reactions, and Nrf2/HO-1 pathway signalling.

Uses & Applications

What each compound is researched for

The set covers the research areas already recorded for each catalog compound. A shared shipment does not make the compounds interchangeable.

GHK-Cu

Dermal models

Collagen, elastin, and glycosaminoglycan synthesis have been measured in fibroblast culture, including wound-closure and dermal-ageing models. Hair-follicle size and hair-cycle transition are separate preclinical endpoints on the GHK-Cu record.

GHK-Cu

Copper delivery and gene expression

GHK-Cu chelates copper(II). Copper-dependent enzyme activity, including lysyl oxidase and superoxide dismutase, and expression changes across a large gene set are the other recorded research areas.

L-Glutathione

Oxidative-stress models

The reduced-to-oxidized glutathione ratio is a standard measure of oxidative stress. Direct scavenging by the cysteine thiol and glutathione peroxidase reactions, including GPx4 in ferroptosis research, are recorded on the L-Glutathione page.

L-Glutathione

Detoxification and Nrf2/HO-1

Glutathione S-transferase conjugation of electrophiles, and signalling associated with the Nrf2/HO-1 antioxidant-response pathway, are the other recorded research areas. One bond is a gamma-glutamyl linkage, which is why most peptidases do not cleave it.

Purity on the published certificate

These figures are printed on each document above. They are not one assay of the whole set.

GHK-Cu · 50 mg certificate99.75%
L-Glutathione · 1500 mg certificate99.40%
Compound identities

Two compounds, two records

This set is not one molecule. Each vial keeps the formula and strength from its own catalog record.

GHK-Cu · 50 mg

Formula
C₁₄H₂₄CuN₆O₄
Molecular weight
403.9 g/mol
Sequence
Gly-His-Lys-Cu(II)
Sequence length
3 residues
CAS
49557-75-7
Catalog record
View GHK-Cu

L-Glutathione · 1500 mg

Formula
C₁₀H₁₇N₃O₆S
Molecular weight
307.32 g/mol
Sequence
γ-L-Glutamyl-L-Cysteinyl-Glycine
Sequence length
3 residues
CAS
70-18-8
Catalog record
View L-Glutathione
Compound Information

Full specification

SetGHK-Cu and L-Glutathione — two separate vials
GHK-Cu50 mg · 1 vial · C₁₄H₂₄CuN₆O₄ · CAS 49557-75-7
L-Glutathione1500 mg · 1 vial · C₁₀H₁₇N₃O₆S · CAS 70-18-8
FormLyophilized powder
PurchaseFixed set. One-time purchase. Components cannot be removed.
Price$80.98 · 10% off $89.98
TestingThird-party HPLC on each published certificate
GHK-Cu certificate50 mg · 99.75% · lot C3M9KQ
L-Glutathione certificate1500 mg · 99.40% · lot CPE57R
Storage-20°C, protected from light and moisture
UseIn-vitro laboratory research only
FAQ

Common questions about Radiance Duo

No. This version is a fixed two-product set. Components cannot be removed.

No. Radiance Duo is a one-time purchase. There is no subscription option on this page.

The GHK-Cu certificate linked here is a 50 mg sample, lot C3M9KQ, reported purity 99.75%. The L-Glutathione certificate is a 1500 mg sample, lot CPE57R, reported purity 99.40%. Each result applies only to the sample named in that document.

Match the lot identifier on each vial against its accompanying certificate or the COA Library. Contact support if a lot-specific document is not available.

Store each lyophilized vial at -20°C, protected from light and moisture. The GHK-Cu record also notes stability for up to 24 months at that temperature. Reduced glutathione oxidizes readily once it is in solution, so the lyophilized vial is the storage form.

Research Use Only.

Not for human or veterinary use. For in-vitro laboratory research only. These statements have not been evaluated by the FDA; this product is not intended to diagnose, treat, cure, or prevent any disease. Sold exclusively to qualified researchers and institutions.