Written by the Pure Peptides editorial team
Published · 1 reference
KLOW vs GLOW
KLOW and GLOW are different blends: KLOW holds the three peptides in GLOW (BPC-157, TB-500 and GHK-Cu) in the same amounts, plus KPV.
Structure at a glance
KLOW: BPC-157 10 mg, TB-500 10 mg, GHK-Cu 50 mg, KPV 10 mg. GLOW: BPC-157 10 mg, TB-500 10 mg, GHK-Cu 50 mg. Outlined: KPV, the peptide KLOW holds and GLOW does not.
Letters are one-letter amino acid codes.
Drawn from each blend's stated contents and the product database. Each measure's bars share one scale.
| Property | KLOW | GLOW |
|---|---|---|
| What it is | Four peptides freeze-dried together in one vial: BPC-157, TB-500 and KPV at 10 mg each, and GHK-Cu at 50 mg. | Three peptides freeze-dried together in one vial: BPC-157 and TB-500 at 10 mg each, and GHK-Cu at 50 mg. |
| How they relate | KLOW holds the three peptides in GLOW, in the same amounts, plus KPV. KPV is a three-residue peptide corresponding to residues 11 to 13 of alpha-melanocyte-stimulating hormone (alpha-MSH). | |
| Contents | BPC-157 10 mgTB-500 10 mgGHK-Cu 50 mgKPV 10 mg | BPC-157 10 mgTB-500 10 mgGHK-Cu 50 mg |
| Total per vial | 80 mg | 70 mg |
| Evidence base | No published study has tested KLOW as supplied. Each of its four peptides has its own research article, covering what has been published on that peptide alone. | No published study has tested GLOW as supplied. Each of its three peptides has its own research article, covering what has been published on that peptide alone. |
| Regulatory status | None of the four peptides in KLOW holds FDA approval. | None of the three peptides in GLOW holds FDA approval. |
| Compared head-to-head? | No direct comparison was found in a PubMed search run in October 2026.[1] | |
| Handling difference | Both blends hold GHK-Cu, a copper complex, so the GHK-Cu Reference page's buffer cautions apply to each whole vial. KLOW's KPV can close a ring across its first two residues, cleaving off the third. | |
How KLOW and GLOW differ
KLOW and GLOW are different blends, and one peptide separates them. KLOW holds the three peptides in GLOW, in the same amounts, plus KPV. GLOW holds 10 mg of BPC-157, 10 mg of TB-500 and 50 mg of GHK-Cu, freeze-dried together in one vial, 70 mg of peptide in total. KLOW holds the same three with 10 mg of KPV, 80 mg in total.
BPC-157 is a synthetic peptide made of 15 amino acids. TB-500 is a synthetic peptide of seven amino acids with an acetyl cap, not full-length Thymosin Beta-4. GHK-Cu is three amino acids holding a single copper ion. KPV, the peptide that KLOW holds and GLOW does not, is a three-residue peptide corresponding to residues 11 to 13 of alpha-melanocyte-stimulating hormone (alpha-MSH).
No published study has tested KLOW or GLOW as supplied. Each peptide in the two blends has its own research article, which covers what has been published on that peptide alone. None of the four peptides in KLOW holds FDA approval, and none of the three peptides in GLOW does.
Both blends hold GHK-Cu, a copper complex, so the GHK-Cu Reference page's buffer cautions apply to the whole vial in each, not only to the GHK-Cu in it. KLOW also holds KPV, which can close a ring across its first two residues, cleaving the third away.
Have KLOW and GLOW been compared directly?
No direct comparison was found in a PubMed search run in October 2026.[1] That search covers PubMed only.
Read more on each peptide
BPC-157
TB-500
GHK-Cu
Frequently Asked Questions
Is KLOW the same as GLOW?+−
No: KLOW holds the three peptides in GLOW, in the same amounts, plus KPV. GLOW holds BPC-157, TB-500 and GHK-Cu, freeze-dried together in one vial, and KLOW holds those three and KPV. No published study has tested either blend as supplied.
References
- 1
PubMed search, 25 October 2026 (records to 24 October 2026)
0 records; none was a direct comparison of the two blends.
Exact query (NCBI E-utilities): ("KLOW"[tiab] OR "K-L-O-W"[tiab]) AND "GLOW"[tiab] AND ("1800/01/01"[edat] : "2026/10/24"[edat])
View this search on PubMed