Research Peptides UK
High-purity liquid peptides in precision-filled research cartridges, batch-tested with COAs available.
For laboratory in vitro research use only.
β₯99%
Purity verified
HPLC
Mass-spec confirmed
CoA
Every batch
UK
Manufactured in Britain
Tracked
Fast dispatch
Trusted by
0 customers
Independent third-party testing
Independently tested by Janoshik Analytical
Check the results for yourself on Janoshik's own verification pages.
Popular peptides
View all βOur most-requested research compounds Β· For laboratory research use only
BPC-157 / TB-500 20mg
Paired repair-pathway research blend.
Β£117.00
- Bestseller
GLOW Blend 70mg (50mg/10mg/10mg)
Triple repair and renewal research blend β 3ml pen cartridge.
Β£157.00
- Popular
GHK-Cu 100mg
Copper-binding tripeptide.
Β£107.00
Tesamorelin 20mg
Stabilised GHRH(1-44) analogue.
Β£149.00
Ipamorelin + CJC (no DAC) 10mg (5mg/5mg)
Selective ghrelin receptor agonist.
Β£107.00
Same peptide. None of the prep.
A vial arrives as lyophilised powder that has to be prepared before use. The Mercia Pen arrives pre-filled and factory-sealed.
Stacks
View all βSave more when you buy multiple pens together
- Save 5%
Tesamorelin 20mg Β· Ipamorelin + CJC no DAC 10mg
- 1Γ Tesamorelin 20mg
- 1Γ Ipamorelin + CJC (no DAC) 10mg (5mg/5mg)
Β£256.00
Β£243.20
Save Β£12.80
- Save 10%
BPC-157 / TB-500 20mg Triple Pack
- 3Γ BPC-157 / TB-500 20mg
Β£351.00
Β£315.90
Save Β£35.10
- Save 10%
GHK-Cu 100mg Triple Pack
- 3Γ GHK-Cu 100mg
Β£321.00
Β£288.90
Save Β£32.10
- Save 10%
Selank 20mg Β· Semax 20mg
- 1Γ Selank 20mg
- 1Γ Semax 20mg
Β£368.00
Β£331.20
Save Β£36.80
- Save 10%
Semax 20mg Β· PT-141 30mg Β· KPV 10mg
- 1Γ Semax 20mg
- 1Γ PT-141 30mg
- 1Γ KPV 10mg
Β£387.00
Β£348.30
Save Β£38.70
- Save 5%
MOTS-c 20mg Β· NAD+ 500mg
- 1Γ MOTS-c 20mg
- 1Γ NAD+ 500mg
Β£314.00
Β£298.30
Save Β£15.70
- Save 10%
MOTS-c 20mg Triple Pack
- 3Γ MOTS-c 20mg
Β£495.00
Β£445.50
Save Β£49.50
- Save 10%
Tesamorelin 20mg Triple Pack
- 3Γ Tesamorelin 20mg
Β£447.00
Β£402.30
Save Β£44.70
Why Choose Us
Fast, tracked dispatch
- In stock and out the door quickly
- Temperature-protected packaging
- Tracking from our door to yours
- Ordered MonβThu ships same day; FriβSun ships Monday, to ensure correct shipping conditions
Proof in every order
- We don't ship until we can prove what's inside
- HPLC and mass-spec on every batch
- β₯99% purity, LAL endotoxin tested
- CoA matched to your exact lot
Made in Britain
- Synthesised and tested in our own UK facility
- Not repackaged from overseas
- Every specification stated on the listing
Vials vs Pens
11 Steps. Or one.
A vial arrives as powder that has to be prepared, measured and transferred by hand. The Mercia Pen arrives pre-filled.
Traditional Vial
Mercia Pen
11 steps
prepare, measure, transfer
1 step
load the cartridge
~12 minutes
plus a 5 minute wait mid-way
12 seconds
ready when you are
Hand-measured
read from graduated markings
Fixed mechanism
consistent every time
Opened repeatedly
repeated access to the contents
Factory-sealed
never opened, never mixed
Extra consumables
diluent and accessories
Nothing else
everything is in the pen
Reviews
What customers say
Reference
Peptide glossary
Definitions covering compounds, receptors, assay methods and lab abbreviations.
Open β
Education
Knowledge Hub
Scientific resources covering peptide science, analytical testing, and laboratory handling.
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Support
FAQ
Answers to common questions about ordering, shipping, storage and research use.
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