
KLOW
KLOW is a pre-filled multi-peptide research pen — 80 mg total — that combines several regeneration-category peptides from the APX Labs catalog in a single lot-tracked format. It exists for laboratories running regeneration-model series that evaluate these compounds together and want a fixed, pre-measured ratio with no reconstitution step. The batch COA lists and reports every component. Research use only.
- Format: pre-filled multi-peptide research pen, 80 mg total — no reconstitution
- Components: several regeneration-category peptides; the full list with identity and purity per component is on the batch COA
- Research contexts: the component classes (copper peptides, repair peptides, anti-inflammatory fragments) each have their own literature in skin, connective-tissue and inflammation models
- Documentation: independent HPLC/MS test per component, batch COA in every order
- Also available: the regeneration-category compounds as separate vials
- Research category
- Regeneration
- Formula / short form
- Multi-peptide blend
- Molecular weight
- Blend
- Quantity per pen
- 80 mg
- Purity
- ≥99% (HPLC/MS, per-lot COA)
- Test method
- HPLC / MS
- Form
- Pre-filled research pen
- Documentation
- Batch-specific COA ships with every order
What is KLOW?
KLOW is a co-formulated blend, not a new molecule: several peptides that are individually available in the regeneration category are combined in one pre-filled pen at a fixed ratio. The exact components and their tested identity and purity are printed on the batch Certificate of Analysis that ships with every pen, so the documentation for the blend is the same as for any single compound.
Why a multi-peptide blend?
Regeneration-model research often evaluates copper-peptide, repair-peptide and anti-inflammatory-peptide classes together — for example GHK-Cu, studied for collagen synthesis and skin-regeneration pathways [1], alongside repair-model compounds such as BPC-157 [2] and TB-500 [3]. A pre-measured pen holds the ratio constant across a series and removes several reconstitution steps. Laboratories that need to vary the ratio should use the separate vials. See multi-peptide blends explained.
Specifications and documentation
Identity and purity are tested per component by HPLC/MS; the COA lists every one. Store refrigerated and away from light; keep capped between uses. How to read the COA →
KLOW — frequently asked
What is in KLOW?⌄
Can I get the KLOW components separately?⌄
How should KLOW be stored?⌄
Further reading
- Lyophilized Vial vs Pre-Filled Pen: Choosing a Research Format — Nine catalog compounds ship as vials, five as pens. The choice is about flexibility versus consistency, not quality.
- Multi-Peptide Research Blends Explained — A blend is not a new molecule. It is two or more compounds held at a fixed ratio so a series can vary one thing at a time.
References
Published research cited for context only. Citing a study does not imply APX Labs product was used in it, and is not a claim of any effect.
- Pickart L, Margolina A (2015). GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration. Biomed Res Int. PubMed ↗
- Chang CH, et al. (2011). The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migration. J Appl Physiol. PubMed ↗
- Goldstein AL, Hannappel E, Kleinman HK (2005). Thymosin beta4: actin-sequestering protein moonlights to repair injured tissues. Trends Mol Med. PubMed ↗
What is KLOW studied for?
Combines several of the most-referenced repair and regeneration peptides into one pre-measured format, studied across skin, structure, and tissue-recovery models.
Handling & storage
Ships pre-filled — no reconstitution required. Store refrigerated and away from light; keep capped between uses and use within the window documented on the COA.
Research use only
Sold strictly for laboratory and research purposes. Not for human or veterinary use, and not intended to diagnose, treat, cure, or prevent any disease. Not evaluated by the FDA. Read the policy → · What RUO means →



Ready to start your research?
Third-party tested. COA-backed. Shipped discreetly. For research use only.
