Research Use Only

KLOW Pen 80mg

(4.9) 363 Reviews

KLOW is a four-peptide research blend (GHK-Cu, BPC-157, TB-500 & KPV) supplied as a pre-loaded 80mg pen by PTLabs for streamlined lab handling.

£89.00 In Stock
Buy 1, Get 1 FREE Add 2 to your cart — the 2nd item is automatically free at checkout.
Secure Checkout Ships Discreetly

Every Batch Independently Tested


Tested by independent laboratories using HPLC and mass spectrometry to verify identity, purity and consistency before release.

Third-Party Tested Identity Verified Purity Confirmed

KLOW is a blended research formulation consisting of four peptide compounds — GHK-Cu, BPC-157, TB-500, and KPV — combined into a single 80mg-per-pen research blend. This combination is being explored in various experimental and laboratory settings.

PTLabs provides high-quality KLOW in a pre-loaded pen format, designed for convenience, precision, and consistency. Each pen contains the full 80mg blend and is prepared to support controlled handling within research environments, offering a streamlined alternative to traditional vial-based formats.

Key Specifications

  • Total Dosage: 80mg per pen (GHK-Cu 50mg, BPC-157 10mg, TB-500 10mg, KPV 10mg)
  • Format: Pre-Loaded Pen (Ready-to-Use Solution)
  • Brand: PTLabs
  • High purity compounds, independently tested

Disclaimer: All products sold by Peptin are intended solely for scientific research use in laboratory settings. Not for human or veterinary use. Do not use in food, drugs, or diagnostics. This compound has not been evaluated by the FDA. All sales are final.

This product is intended for laboratory research use only. Not for human consumption.

30mg of Retatrutide per pen. 3ml total volume. Each click dispenses 0.01ml (0.1mg); 10 clicks equal a 1mg dose. 99%+ purity, third-party tested for identity and potency.

Each click = 0.01ml = 0.1mg. 10 clicks = 1mg dose. Store refrigerated at 2–8°C. Consult your research protocol for handling guidance.

Orders ship in discreet, insulated cold-chain packaging. Proccessing times take 2-3 days. Domestic delivery in 2–4 business days. See our Shipping & Returns policy for full details.

Available SizesDefault Title
Purity>99% (HPLC verified)
FormPre-filled Pen (Ready-to-use Solution)
VerificationIndependent third-party HPLC + mass spectrometry testing
COA AccessBatch-specific Certificate of Analysis available on request — contact us with your lot number.

Storage: Store the pen refrigerated at 2–8°C, protected from light. Do not freeze. Discard 90 days after first use, or sooner per your research protocol.

This pen ships pre-filled and ready to use — no reconstitution is required. Before each use, confirm the solution is clear and colorless; do not use if it appears cloudy or discolored.

Prime the pen per the dosing instructions before first use, and always use sterile technique and appropriate PPE when handling. This product is supplied strictly for in vitro laboratory research — not for human or veterinary use.

KLOW is a blended research formulation consisting of four peptide compounds — GHK-Cu, BPC-157, TB-500, and KPV — combined into a single 80mg-per-pen research blend. This combination is being explored in various experimental and laboratory settings.

PTLabs provides high-quality KLOW in a pre-loaded pen format, designed for convenience, precision, and consistency. Each pen contains the full 80mg blend and is prepared to support controlled handling within research environments, offering a streamlined alternative to traditional vial-based formats.

Key Specifications

  • Total Dosage: 80mg per pen (GHK-Cu 50mg, BPC-157 10mg, TB-500 10mg, KPV 10mg)
  • Format: Pre-Loaded Pen (Ready-to-Use Solution)
  • Brand: PTLabs
  • High purity compounds, independently tested

Disclaimer: All products sold by Peptin are intended solely for scientific research use in laboratory settings. Not for human or veterinary use. Do not use in food, drugs, or diagnostics. This compound has not been evaluated by the FDA. All sales are final.

This product is intended for laboratory research use only. Not for human consumption.

30mg of Retatrutide per pen. 3ml total volume. Each click dispenses 0.01ml (0.1mg); 10 clicks equal a 1mg dose. 99%+ purity, third-party tested for identity and potency.

Each click = 0.01ml = 0.1mg. 10 clicks = 1mg dose. Store refrigerated at 2–8°C. Consult your research protocol for handling guidance.

Orders ship in discreet, insulated cold-chain packaging. Proccessing times take 2-3 days. Domestic delivery in 2–4 business days. See our Shipping & Returns policy for full details.

Available SizesDefault Title
Purity>99% (HPLC verified)
FormPre-filled Pen (Ready-to-use Solution)
VerificationIndependent third-party HPLC + mass spectrometry testing
COA AccessBatch-specific Certificate of Analysis available on request — contact us with your lot number.

Storage: Store the pen refrigerated at 2–8°C, protected from light. Do not freeze. Discard 90 days after first use, or sooner per your research protocol.

This pen ships pre-filled and ready to use — no reconstitution is required. Before each use, confirm the solution is clear and colorless; do not use if it appears cloudy or discolored.

Prime the pen per the dosing instructions before first use, and always use sterile technique and appropriate PPE when handling. This product is supplied strictly for in vitro laboratory research — not for human or veterinary use.

Verified Reviews

What Researchers Are Saying

5.0

Based on 363 verified reviews

5 100%
4 0%
3 0%
2 0%
1 0%
Priya N. Verified Buyer
16 May 2026

Reliable service

Ordering was painless and delivery was quick. Everything arrived sealed with the batch paperwork included. Exactly the kind of reliable service I was hoping for.

Marcus T. Verified Buyer
30 May 2026

Fast and well packaged

Well packaged and shipped fast. No complaints.

Rebecca H. Verified Buyer
11 June 2026

Consistent every order

This is my third order and the standard has been the same every time — sealed vials, clear labelling, and documentation that actually matches the batch. Communication is quick whenever I've had a question. Happy to keep coming back.

Owen G. Verified Buyer
24 June 2026

Thorough paperwork

Discreet packaging and everything arrived intact and properly labelled. The paperwork was thorough, which gives me confidence in what I'm working with.

Lauren P. Verified Buyer
2 July 2026

Exactly as listed

Fast, sealed, exactly as listed. Great.

Nathan C. Verified Buyer
10 July 2026

Smooth from start to finish

Smooth order, quick delivery. Recommended.

£89.00 In Stock

Research Use Only

For laboratory research purposes only. Not for human consumption.

Expert Support

Have questions? Our team is here to support your research journey.

Discreet Shipping

All orders are shipped in plain packaging for your privacy.

Satisfaction Guaranteed

Quality products and reliable service you can trust.