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Research peptides, catalogued properly

89 research compounds and laboratory supplies, indexed by mechanism, by research area and by format. Dispatch 2pm ET, Mon–Fri, in unbranded packaging.

Most requested Retatrutide 10 mg · $89.00

For laboratory research use only. Not for human consumption.

The catalogue

A Pure Peptide Sources vial beside its branded carton on a steel laboratory bench, with a microscope and glassware softly out of focus behind.
A sealed vial and its outer carton. Every compound ships this way, labelled and boxed.

In the collection

Every object carries the same label: name, fill weight, identifiers, storage, price. No object carries a claim.

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10 in demand now

Retatrutide

Retatrutide

10 mg

Triple GIP, GLP-1 and glucagon receptor agonist, 10 mg per vial.

CAS
2381089-83-2
Storage
Refrigerated

$89.00

Low stock

Semaglutide

Semaglutide

5 mg

Long-acting GLP-1 receptor agonist, lyophilised, 5 mg per vial.

CAS
910463-68-2
Storage
Refrigerated

$55.00

In stock

Tirzepatide

Tirzepatide

10 mg

Dual GIP and GLP-1 receptor agonist, 10 mg per vial.

CAS
2023788-19-2
Storage
Refrigerated

$85.00

In stock

Cagrilintide

Cagrilintide

5 mg

Long-acting amylin receptor agonist, 5 mg per vial.

Storage
Refrigerated

$79.00

In stock

Semaglutide and Cagrilintide Blend

CagriSema

5 mg / 5 mg

Co-formulated semaglutide and cagrilintide, 5 mg of each per vial.

Storage
Refrigerated

$116.00

In stock

5-Amino-1-Methylquinolinium

5-Amino-1MQ

50 mg x 60

NNMT inhibitor, 50 mg capsules, 60 per bottle.

Storage
Ambient

$99.00

In stock

MOTS-c

MOTS-c

10 mg

Mitochondria-derived 16-amino-acid peptide, 10 mg per vial.

Sequence
MRWQEMGYIFYPRKLR
Storage
Refrigerated

$76.00

In stock

BPC-157 Body Protection Compound

BPC-157

5 mg

Pentadecapeptide derived from gastric protective protein, 5 mg per vial.

CAS
137525-51-0
Sequence
GEPPPGKPADDAGLV
Storage
Refrigerated

$49.00

In stock

TB-500 Thymosin Beta-4 Fragment

TB-500

5 mg

Synthetic active fragment of thymosin beta-4, 5 mg per vial.

Storage
Refrigerated

$49.00

In stock

BPC-157 and TB-500 Blend

BPC + TB

5 mg / 5 mg

Co-formulated BPC-157 and TB-500, 5 mg of each per vial.

Storage
Refrigerated

$85.00

In stock

Continue All 89 compounds

Most ordered

All 89 compounds →
Semaglutide

Semaglutide

5 mg

Long-acting GLP-1 receptor agonist, lyophilised, 5 mg per vial.

CAS
910463-68-2
Storage
Refrigerated

$55.00

In stock

Tirzepatide

Tirzepatide

10 mg

Dual GIP and GLP-1 receptor agonist, 10 mg per vial.

CAS
2023788-19-2
Storage
Refrigerated

$85.00

In stock

Cagrilintide

Cagrilintide

5 mg

Long-acting amylin receptor agonist, 5 mg per vial.

Storage
Refrigerated

$79.00

In stock

Semaglutide and Cagrilintide Blend

CagriSema

5 mg / 5 mg

Co-formulated semaglutide and cagrilintide, 5 mg of each per vial.

Storage
Refrigerated

$116.00

In stock

5-Amino-1-Methylquinolinium

5-Amino-1MQ

50 mg x 60

NNMT inhibitor, 50 mg capsules, 60 per bottle.

Storage
Ambient

$99.00

In stock

MOTS-c

MOTS-c

10 mg

Mitochondria-derived 16-amino-acid peptide, 10 mg per vial.

Sequence
MRWQEMGYIFYPRKLR
Storage
Refrigerated

$76.00

In stock

Browse the full catalogue

Work out the draw before you buy

The question every buyer actually has is how much solution to draw. Set the fill weight and the diluent volume and the syringe below answers it at real scale. Nothing to install, no page to leave.

Concentration

5.00 mg/ml

Draw to

5 units

Volume

0.050 ml

Units are U-100 insulin syringe graduations. Figures are arithmetic only.

How ordering works

2pm ET

Order before this and it leaves the same working day, Mon–Fri.

$500

Free shipping above this. Supplies are priced at cost to make one order enough.

30 days

Lost or damaged in transit inside this window and it ships again. No return required.

Unbranded

Outer packaging carries no contents, no compound names and no company branding.

Questions worth answering

What does research use only actually mean?

It means the compound is supplied for in-vitro laboratory and analytical work. It is not a drug, food, cosmetic or medical device, it has not been prepared or tested for human or veterinary administration, and it is not intended to diagnose, treat, cure or prevent any condition.

How should a lyophilised peptide be reconstituted?

Bacteriostatic water is the usual diluent. Run it down the inside wall of the vial rather than directly onto the powder, then let it dissolve without shaking. The volume you add sets the concentration, which is what the reconstitution calculator on this site works out for you.

How are refrigerated compounds shipped?

Lyophilised peptides are stable in transit at ambient temperature and are shipped in insulated packaging. Refrigeration applies once the vial reaches you, and reconstituted solution is refrigerated from that point on.

What is the difference between bacteriostatic and sterile water?

Bacteriostatic water carries 0.9 percent benzyl alcohol as a preservative, so one vial can be entered repeatedly. Sterile water has no preservative and is single use, which matters when the preservative would interfere with the compound or the assay.

How quickly do orders leave?

Orders placed before 2pm ET dispatch the same working day, Mon–Fri. Packaging is unbranded and lists no contents on the outside.

Do you accept credit cards?

No. Payment is by cryptocurrency only. The card networks classify research compounds as a restricted category and will not underwrite merchant accounts for it, which applies to every supplier in this sector rather than to us specifically. Bitcoin, Ethereum, Tether, USD Coin and Litecoin are accepted, each on the single network listed at checkout.

What if the crypto price moves while I am paying?

It does not affect you. The invoice locks an exact amount for 30 minutes from the moment it is issued, and the order settles at that figure regardless of what the market does in between. If the window expires before the payment lands, a fresh invoice is issued at the new rate.

Enquiries

Info@purepeptidesources.com

Questions about a compound, an order, or bulk quantities are answered by a person, inside 24 hours.

Catalogue
89 compounds
Dispatch
2pm ET, Mon–Fri
Terms
Research use only