Klow Blend is a combined-vial research formulation pairing TB-500, BPC-157, and GHK-Cu with a fourth component. The site currently lists that fourth ingredient two different ways — KPV on the homepage, Kisspeptin on this page — and that conflict is unresolved. Research Use Only, not for human or veterinary use.
HPLC certified
Independent analysis
Highest standard
Full traceability
Each Klow Blend order is listed at $199 as a combined-vial formulation for laboratory research use only. Unlike a single-compound product, Klow Blend has no single CAS number, molecular formula, or molecular weight — it is sold as a mixture, and the tables below reflect the three confirmed ingredients.
| Compound | GHK-Cu (copper tripeptide-1) |
|---|---|
| CAS Number | 89030-95-5 |
| Molecular Formula | C14H24CuN6O4 |
| Molecular Weight | 403.92 g/mol |
| PubChem CID | 378611 |
| Compound | BPC-157 |
|---|---|
| CAS Number | 137525-51-0 |
| Molecular Formula | C62H98N16O22 |
| Molecular Weight | 1,419.56 g/mol |
| PubChem CID | 9941957 |
| Compound | TB-500 (Ac-LKKTETQ, synthetic fragment of thymosin beta-4 residues 17-23) |
|---|---|
| CAS Number | 885340-08-9 |
| Molecular Formula | C38H68N10O14 |
| Molecular Weight | 889.0 g/mol |
| PubChem CID | 62707662 |
Unconfirmed fourth component: listed as KPV on the homepage component selector and as Kisspeptin on this product page. This has not been resolved as of this writing, so no CAS number, formula, or PubChem CID is published for it here until that conflict is corrected.
| Listed Quantities | TB-500 10 mg, BPC-157 10 mg, GHK-Cu 50 mg, fourth component 10 mg — shown on the homepage component card only, not yet confirmed on this product page |
|---|---|
| Purity | ≥99% advertised (HPLC) |
| Identity | Not independently confirmed by mass spectrometry in a published, batch-matched document for this product |
| Available Sizes | Not disclosed — no size selector is shown on the product page |
| Intended Use | Laboratory research only (RUO) |
Once a COA is published for this product, match the lot number printed on the vial to the lot number on the COA before beginning any work.
GHK-Cu isn't a stand-in for every copper peptide — it's one specific, well-studied complex. What research supports for skin and hair, and current FDA status.
Klow Blend's own label disagrees with itself — Kisspeptin on one page, KPV on another. What's verified, and how each component's research actually stacks up.
No human trial has tested BPC-157. What the animal research shows, how it differs from TB-500, and why "BPC-157 nasal spray" outsearches the evidence.
