Comparison · 2026-09-24
Scientific lead: Alice Kay, Ph.D.
GLOW vs KLOW: Research Comparison
Research-use notice: This page records catalog differences only: sequences, receptor classes, fill sizes, and Certificate of Analysis rows. It is not a protocol. It is not medical or veterinary advice, and it does not rank materials for personal use. BlueNex Labs materials are research-use only. Research-use-only labeling is not a Health Canada authorization and it does not create a Drug Identification Number.
GLOW and KLOW are both multi-peptide inventory fills that include a copper tripeptide among other sequences. They are not the same fill, they do not print the same component list, and they do not share a certificate. This page is the blend-versus-blend record. The single-complex comparison, which also explains why a copper salt is not GHK-Cu, is GHK-Cu versus GLOW and KLOW. Read that page for the tripeptide. Stay here when the question is which blend documentation you are holding. This page is not a protocol.
What each product record actually prints
GLOW 70 mg names three components: GHK-Cu, TB-500, and BPC-157. The product record states a 70 mg total. It does not print a per-peptide milligram split. This page does not invent one. The documentation note is GLOW blend documentation. If a study file needs a split that the product record does not print, the lot PDF is the place to look, and a missing split stays missing.
KLOW 80 mg does print a split. The product record lists GHK-Cu 50 mg, BPC-157 10 mg, TB-500 10 mg, and KPV 10 mg. Those four numbers are catalog text for that SKU. They are not a specification for GLOW, even though three of the names overlap. Adding the four numbers does not equal the GLOW total, and matching the GHK-Cu figure to the single-complex 50 mg vial does not make KLOW that vial. The documentation note is KLOW blend documentation.
KPV, Lys-Pro-Val, is the name on the KLOW record that the GLOW record does not carry. The tripeptide note is KPV. BPC-157 is a pentadecapeptide with its own guide. TB-500 is a thymosin beta-4 fragment with its own guide. Those single-sequence pages explain the components. They are not blend lot files. The class route that indexes the blends beside the copper complex is copper peptides. Indexing is a purchasing convenience. It is not a shared molecular weight.
| Record | GLOW | KLOW |
|---|---|---|
| Named components | GHK-Cu, TB-500, and BPC-157 | GHK-Cu, BPC-157, TB-500, and KPV |
| Milligram split on the product record | Not printed. 70 mg is the total only. | Printed: 50 mg, 10 mg, 10 mg, and 10 mg |
| Molecular class | Three-sequence research fill | Four-sequence research fill |
| Catalog size | 70 mg total | 80 mg total |
| COA | certificates#glow70 | certificates#klow-80mg, including mass and endotoxin links |
Two library rows, and the trap of a familiar name
On the September 20, 2026 review, both blends have their own anchors. GLOW's row is a Janoshik file for that lot. KLOW's row includes mass and endotoxin links of its own, plus group links that still belong to KLOW. Swapping the anchors because both names contain the copper complex is a documentation error. A GHK-Cu 50 mg certificate does not supply GLOW's missing split, and it does not replace KLOW's blend file, even when one component mass matches the single-complex fill size. Matching a number is not matching a lot.
A blend chromatogram may show more than one peptide-related peak. Do not assign every peak to GHK-Cu because that name is on both labels, and do not assign a KPV peak to a GLOW file that does not name KPV. How to read a peptide COA applies to each file separately. GHK-Cu, copper peptide, and pentadecapeptide are the glossary lines for components, not for the blend as a whole. Endotoxin on the KLOW row does not extend to GLOW. Copy the unit and the denominator from the file you opened, or leave the cell blank.
Component vials are a different purchase
Ordering BPC-157, TB-500, KPV, or the GHK-Cu 50 mg complex is not the same purchase as ordering a blend. Their certificates do not document GLOW or KLOW. If the study file needs only one sequence, use that sequence's URL. If the study file needs the blend, name GLOW or KLOW and record whether a per-peptide split was printed. Do not "complete" GLOW by copying KLOW's four numbers into a receiving log. The BPC-157 and TB-500 comparison is a sequence page for two of the components. It is not a blend specification.
No primary paper was used here as a lot report for either blend. Single-sequence literature belongs on the component notes. A paper about one peptide does not identify a multi-peptide cake. The receiving line should say which blend, which total milligrams, which lot, and which PDF. "The copper blend" fails that line.
Write whether a per-peptide split was printed before you write any milligram that is not on the product record. For GLOW, the honest split line is "not printed; 70 mg total." For KLOW, copy 50 mg, 10 mg, 10 mg, and 10 mg only if the label in hand still says that. A later batch that changes the printout is a new record. Do not keep last month's split because the blend nickname stayed the same. The public desk is 4309 Canada Way, Burnaby, BC. Labels use a Port Moody PO Box. Fulfilment does not merge the two PDFs.
Category route and fulfilment
Both cards sit on the cellular category hub. Payment is Interac e-Transfer. Parcels move on Canada Post Xpresspost inside Canada. The operational page is Canada laboratory procurement. Move sealed vials into controlled storage the day they arrive. Sold-out status is inventory. It does not merge the two fills, and it does not create a backorder. Research-use only. Not for human or veterinary use. This page is not a protocol.
Frequently asked questions
- Do GLOW and KLOW print the same component list?
- No. GLOW names GHK-Cu, TB-500, and BPC-157 in a 70 mg total and does not print a per-peptide milligram split. KLOW names GHK-Cu 50 mg, BPC-157 10 mg, TB-500 10 mg, and KPV 10 mg.
- Does the GLOW certificate document KLOW?
- No. Each blend has its own library row. A component vial certificate also does not document either blend lot.
- Is this page the GHK-Cu single-complex comparison?
- No. The copper tripeptide versus both blends is a different URL. This page is blend versus blend. It is not a protocol.
- Why is KPV the practical difference on the label?
- The KLOW product record names KPV. The GLOW product record does not. Matching the copper-complex name on both cards does not add KPV to GLOW.
Research-use only. BlueNex Labs does not provide medical or veterinary advice. Confirm your institution’s policies before purchase. How a comparison or class note is checked sits on documentation standards. The biochemist of record is Alice Kay, Ph.D.