

$150.00
- Free US shipping over $150
- HPLC-tested at 99%+ purity
- US-based fulfillment
Used in Skin & Hair Protocol.
Overview
Klow is a proprietary peptide blend from MHS Longevity, containing BPC-157 (10mg), TB-500 (10mg), KP (10mg), GHK-Cu (50mg), designed to support advanced research into tissue repair, inflammation modulation, and cellular regeneration. This 80mg vial, with 99% purity, is intended solely for research purposes. Studies on individual components suggest potential benefits in healing musculoskeletal injuries, promoting angiogenesis, and enhancing skin repair. Not approved for human or veterinary use by regulatory agencies like the FDA, and its use is restricted to laboratory settings. Store in a cool, dry place and handle with aseptic techniques.
Frequently asked questions
Yes. Every batch of Klow 80mg undergoes independent third-party testing using High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS). The Certificate of Analysis is published and accessible from the product page.
Klow 80mg sold by MHS Longevity is verified to 99%+ purity, with the result documented in each batch's Certificate of Analysis. Anything below that threshold is rejected before release.
The Certificate of Analysis for Klow 80mg is available directly from the product page and on our Third-Party Test Results page. Each COA includes the batch identifier, test date, testing method, and verified purity percentage.
Klow 80mg ships from our US-based facility with standard or expedited options. Orders over $150 qualify for free standard US shipping. All orders are packaged discreetly with documented handling protocols.
No. Klow 80mg is supplied strictly for laboratory research purposes only. It is not approved by the FDA for human or veterinary use, and it is not intended to diagnose, treat, cure, or prevent any disease.
MHS Longevity is a veteran-owned operation focused on pharmaceutical-grade research compounds. We source from vetted manufacturers, batch-test independently with HPLC and Mass Spectrometry, and publish every Certificate of Analysis. Pricing is transparent and the testing process is documented end-to-end.
The specific component list and ratios are documented per-batch on the Certificate of Analysis rather than restated here. This is the authoritative source for the formulation as supplied, and matches our practice for all blend products — composition lives with the batch record, not with marketing copy.
Convenience and pre-validated ratio consistency. A pre-mixed blend reduces handling steps, eliminates per-experiment ratio-mixing variability, and means each animal or assay receives the same component ratio without per-experiment manual mixing. The trade-off is reduced flexibility — research designs that need to vary the ratio between components do not gain that flexibility with a pre-mixed blend.
The independent laboratory measures the ratio between components by integrating each component's HPLC peak area against the others. The measured ratio is compared against the formulation specification; meeting the specified ratio is part of the release criterion alongside the per-component purity requirement.
Klow is sent to an independent third-party laboratory for HPLC and Mass Spectrometry analysis before each batch is released. The lab's identifier, test date, per-component identification and purity, and component-ratio verification are published on the Certificate of Analysis for that batch.
Research & buying
The evidence behind Klow 80mg and the questions to ask any vendor before you order.
Research details — Klow 80mg
Klow is a proprietary multi-peptide research blend supplied at a total nominal content of 80mg per vial. Unlike the single-molecule products elsewhere in our catalog — where one HPLC peak and one mass-spectrometry confirmation cover the entire verification job — a blend product introduces an additional layer of quality work: each component must be identified and quantified separately, and the ratio between components is itself a release criterion. This guide explains what blend products like Klow are at the quality-verification level, the research-protocol design considerations that apply to working with combined-component formulations, and how to read a multi-component Certificate of Analysis.
What is Klow?
Klow is a multi-peptide blend formulation. The specific component composition and the per-component ratios are documented on each batch's Certificate of Analysis rather than restated in this guide, because blend formulations are batch-traceable per the COA in a way that a single-molecule guide cannot fully capture. The 80mg figure is the total combined peptide content of a vial. It is supplied as a lyophilized solid for laboratory reconstitution. Researchers using Klow should reference the batch-specific COA for the authoritative component breakdown.
Klow is sold strictly for laboratory and research use. It is not approved by the FDA or any other regulatory body for human or veterinary use, and nothing in this guide constitutes guidance for human administration.
Research-protocol considerations when working with blend products
Working with a pre-mixed multi-component blend differs in important ways from working with separate single-molecule vials of the same components. The advantage is convenience and pre-validated ratio consistency across the batch. The trade-off is reduced flexibility: a research design that needs to vary the ratio between two components — for instance to perform a dose-response curve on one component while holding another fixed — cannot do so directly with a pre-mixed blend. Researchers evaluating whether Klow suits their protocol should consider whether the formulated ratio matches their experimental design or whether separately-sourced components would be more appropriate.
How Klow quality is verified
Every batch of MHS Longevity Klow is submitted to an independent third-party laboratory before release. Blend verification is multi-step:
- HPLC separates the blend into individual component peaks. Each component is identified by retention time against known reference standards, and each component's purity within its own peak area must meet the 99%+ specification.
- Mass Spectrometry independently confirms the identity of each component peak. For blends, this is the verification step that catches mis-identification — two peaks with similar retention times but different identities would resolve cleanly under MS.
- Component ratio verification measures the ratio between components against the formulation specification. This is the blend-specific release criterion that does not apply to single-molecule products.
What a Klow Certificate of Analysis shows
- Product name and composition. Klow blend, with the per-batch component list documented.
- Batch identifier. Unique ID linking certificate to vial.
- Test date. When the analysis was performed.
- Method. HPLC, MS, with per-component retention-time and mass confirmation.
- Per-component purity. Each component meeting the 99%+ purity threshold within its own peak.
- Component ratio. Measured ratio meeting the formulation specification.
- Lab and signatures. The independent lab performing the analysis.
Storage and handling (research lab context)
Lyophilized Klow should be stored at -20°C or below for extended stability. Once reconstituted, the solution is typically held at 2–8°C and used within the documented stability window. Multi-component blends can have a stability window dictated by the least-stable component, which is one reason single-use aliquoting after reconstitution is good practice. Repeated freeze–thaw cycles should be avoided. Standard aseptic technique applies during reconstitution.
Where to buy Klow 80mg
The same eight questions apply whether you're buying Klow 80mgfrom us or anywhere else. Vendors who can't answer any of them are worth a closer look.
Vendor evaluation checklist
1. Is the Certificate of Analysis public and downloadable?
A vendor unwilling to publish HPLC/MS results for the batch you're buying has nothing to verify their purity claim against.
2. Which testing method was used — HPLC, Mass Spectrometry, or both?
HPLC measures purity. Mass Spectrometry confirms the molecule's identity. Reputable batches go through both.
3. What's the verified purity percentage on the published COA?
Industry research standard is 99%+. Below that, you're paying for a compound diluted with synthesis byproducts.
4. Where does the product ship from?
US-based fulfillment generally means shorter handling times, customs-free delivery, and clearer return remedies.
5. Is the price published at a single list rate, or hidden behind tier locks?
Opaque pricing is a yellow flag. Transparent vendors quote the same number to every customer.
6. What's the free-shipping threshold, if any?
Compare the all-in cost (product + shipping + handling) — not just the headline price.
7. How is the product stored prior to shipment?
Lyophilized peptides degrade with temperature swings. Vendors should disclose temperature-controlled storage.
8. Is there a documented damage-claim and return policy?
Discreet shipping carries handling risk. A clear, written policy protects you when something goes wrong.
MHS LongevityThis site - Price
- $150
- Purity
- 99%+
- Testing
- HPLC + MS
- COA public
- US-based
- Free shipping
- $150+
- Last checked
- May 13, 2026
| Vendor | Price | Listed purity | Testing method | COA public | US-based | Free shipping | Last checked |
|---|---|---|---|---|---|---|---|
MHS LongevityThis site | $150 | 99%+ | HPLC + MS | $150+ | May 13, 2026 |
Competitor data sourced from each vendor's public product page on the date shown. Listed purity reflects each vendor's own published claim; Certificate of Analysis availability is verified at the URL above. Data may have changed since last check.


