For laboratory and research use only. Not for human or animal consumption.

How it works

The dominant active is GHK-Cu, a naturally occurring copper tripeptide that engages copper-dependent signaling in fibroblasts. Published work has documented effects on collagen I and III synthesis, decorin expression, and matrix metalloproteinase modulation. The ancillary peptides extend the formulation's reach into elastin-related signaling.

Each 70mg vial contains GHK-Cu (50mg) plus two ancillary peptides studied for synergistic effects on dermal extracellular matrix research. Full composition disclosed on every COA. Blend ratio is fixed; we do not split components.

Learn more about the science →
GHK-Cu (50mg)fibroblast copper signaling
Collagen I/IIIsynthesis ↑
Ancillary peptideselastin pathway
Certificate of Analysis+

Each component named, weighed, identified by LC-MS, purity by HPLC, endotoxin assayed. Third-party ISO-17025 verification on the finished blend and each component.

View full certificate →Lot GLW-2603-A · Mar 2026 · printable
GHK-Cu identityConfirmed✓ Pass
GHK-Cu purity99.5%✓ Pass
Ancillary identityConfirmed✓ Pass
Ancillary purity99.1%✓ Pass
Endotoxin (LAL)<0.5 EU/mg✓ Pass
Certificate metadata
Lot
GLW-2603-A
Released
Mar 2026
Tested by
Janus Analytical (ISO-17025)
Method
RP-HPLC · LC-MS · LAL · KF
Specifications+
CompositionGHK-Cu (50mg) + ancillary peptides (20mg total)
FormLyophilized, sealed under nitrogen
Purity≥99% per component
Endotoxin<0.5 EU/mg
Vial mass70mg blend
Storage & handling+

Lyophilized: −20°C, 24 months. Protect from light — copper complexes are mildly photosensitive. Reconstituted: 2–8°C, 21 days. Slight blue-green tint is normal. Bacteriostatic water; swirl gently.

We ship in insulated parcels with phase-change cooling and a tamper-evident seal.

FAQs+
Why is Glow a blend rather than just GHK-Cu?+

The ancillary peptides are studied for complementary effects on the dermal ECM. We also sell GHK-Cu standalone.

Will the COA disclose the full formulation?+

Yes. Every component named, weighed, verified individually. “Proprietary” describes the blend, not the disclosure.

Why is the solution slightly blue-green?+

The copper in GHK-Cu produces a faint blue-green color. Expected, not a sign of degradation.

Can Glow be administered intradermally in research?+

Investigator-dependent. The lyophilized form is reconstituted to the concentration the protocol requires.

What's the difference between Glow and Klow?+

Glow is GHK-Cu-dominant for collagen and ECM research. Klow is dominated by a different lead peptide for pigmentation work. Both COAs disclose full composition.

Is Glow subscription-eligible?+

Yes. 15% off on a 60-day cycle.

The research behind this compound, cited in full.

Provided for context only. None of the studies cited below evaluate hábit material specifically; they document the published literature on the compound and its mechanism. Research-use claims are not therapeutic claims.

  1. [01] Pickart L. & Margolina A. Int J Mol Sci 19 (2018): 1987.
  2. [02] Pickart L. et al. Biomed Res Int 2015: 648108.
  3. [03] Maquart FX. et al. FEBS Lett 238 (1988): 343–346.
  4. [04] Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene DataInternational Journal of Molecular Sciences · 2018 · Pickart L, Margolina ADOI 10.3390/ijms19071987

Verified buyer notes

Initials only — every quote is verified against an order record. We don’t ghost-write reviews.

COA matched what we ran in-house. Powder reconstituted clean, no haze. Did exactly what we needed it to.
M.O.Boston, MAApril 2026
Switched after two bad lots from a previous source. Three orders in, zero issues.
J.K.Austin, TXMarch 2026
Asked support a purity question and got the raw HPLC trace back within the hour. That transparency is why we reorder.
S.L.Chicago, ILFebruary 2026