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Lab verified

Proof,
not promises.

Every compound is tested by an independent third-party laboratory, and you can request the certificate of analysis for the batch you receive.

View all productsLab essentials
Tested by an independent lab
  • HPLC – purity percentage for the batch
  • Endotoxin assay – bacterial endotoxin screening
  • TAMC / TYMC – microbial and yeast/mould counts
  • Heavy metals – heavy metal screening
How to get your batch COA
HPLC testedPurity verified
COA availableFor your batch, on request
Fast dispatchFrom Liverpool, UK
Royal Mail 24Free over £100
Secure checkoutCard & crypto
Quality & testing

Four tests. One certificate for your batch.

Our peptides are tested by an independent third-party laboratory. Request the certificate of analysis for your batch at any time with your order number.

HPLCPurity percentage for the batch
Endotoxin assayBacterial endotoxin screening
TAMC / TYMCMicrobial and yeast/mould counts
Heavy metalsHeavy metal screening
About our testing & COAs
CERTIFICATE OF ANALYSISEXAMPLE LAYOUT
Batch
Compound
Purity (HPLC)
Endotoxin
TAMC / TYMC
Heavy metals
Illustrative only. Request the certificate for your batch.
Getting your COA

How to request your certificate

01Find your order number

It’s in your order confirmation email and in your account.

02Request the COA

Use our COA page or email [email protected] with your order number.

03Check it against your vial

We send the certificate for the batch you received.

Lab essentials · In stock in Liverpool

Lab essentials

Research peptides and blends are in the full catalogue.

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BAC Water 3ml – Pep Labs UK
Lab essential

Bacteriostatic Water

Bacteriostatic water for the laboratory reconstitution of lyophilised research compounds.

  • Available in 3ml and 10ml vials
  • Added free on qualifying orders over £100
  • Dispatched from Liverpool by Royal Mail Tracked 24
Price range: £3.99 through £9.99
Price range: £2.99 through £7.49
Choose sizeView all products
Looking for research peptides?50+ research peptides and blends, all third-party tested, in the full catalogue.
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FAQ

Testing questions

Do your products come with a certificate of analysis?

Yes. Our products are third-party tested, and a COA confirming purity can be requested for your batch. See our COA page or contact support with your order number.

How fast is delivery?

Orders go out from Liverpool on working days by Royal Mail Tracked 24, usually 1–2 working days. £4.99, or free on orders over £100.

What payment methods do you accept?

Card and crypto. Card details are processed by our payment providers and never stored by us.

Are the peptides supplied as powder or liquid?

Our peptides and blends are supplied lyophilised (freeze-dried powder) in sealed vials.

Who can buy from Pep Labs UK?

Buyers aged 21 or over, purchasing for laboratory research use only.

Check the testing. Then take 10% off.

Use WELCOME10 at checkout for 10% off your first order.

View all productsLab essentials
For laboratory research use only. Products sold by Pep Labs UK are not medicines, food supplements or cosmetics, and are not for human or veterinary consumption. They must not be used to diagnose, treat, cure or prevent any disease. Buyers must be 21 or over. Prices include VAT.
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