FREE UK SHIPPING ON ORDERS OVER £100◆ FREE BAC WATER ON ALL ORDERS OVER £150◆ 99%+ PURITY — THIRD PARTY TESTED◆ NEXT DAY UK DELIVERY AVAILABLE◆ SECURE CHECKOUT — PROCESSED BY STRIPE◆ JOIN OUR TELEGRAM — t.me/rsbiolabs◆ FREE UK SHIPPING ON ORDERS OVER £100◆ FREE BAC WATER ON ALL ORDERS OVER £150◆ 99%+ PURITY — THIRD PARTY TESTED◆ NEXT DAY UK DELIVERY AVAILABLE◆ SECURE CHECKOUT — PROCESSED BY STRIPE◆ JOIN OUR TELEGRAM — t.me/rsbiolabs◆
UK's Premier Research Peptide Source

Premium
Research

RS BIO LABS

Pharmaceutical-grade research peptides with ≥99% purity, third-party verified and dispatched from our UK facility. Trusted by researchers across Britain.

Visit Store Join Telegram
99%+
Purity Guaranteed
48hr
UK Dispatch
COA
Every Batch
COA Batch Tested
✓ VERIFIED
Join the RS Bio Labs Telegram
Restock alerts, research updates, community Q&A, and exclusive early access — all in one place.
Join Now — t.me/rsbiolabs
/ CATALOGUE
Popular Products
View All →
● Most Popular
Semaglutide
GLP-1 Receptor Agonist · 10mg
A GLP-1 analogue with extended half-life. Active area of metabolic and cardiovascular research globally.
10mg vial
Lyophilised
≥99% purity
COA included
£44.99
per vial
Buy Now
● Most Popular
Tirzepatide
GIP/GLP-1 Dual Agonist · 10mg
A novel dual GIP and GLP-1 receptor agonist. Research compound in metabolic syndrome and type 2 diabetes mechanisms.
10mg vial
Lyophilised
≥99% purity
COA included
£29.99
per vial
Buy Now
● Most Popular
Retatrutide
Triple GIP/GLP-1/Glucagon Agonist · 10mg
Next-generation triagonist simultaneously targeting GIP, GLP-1 and glucagon receptors. Most advanced metabolic peptide available.
10mg vial
Lyophilised
≥99% purity
COA included
£83.99
per vial
Buy Now
★ Best Seller
BPC-157
Body Protection Compound · 5mg
A synthetic pentadecapeptide from gastric juice protein. Extensively studied for tissue regeneration and gut health research.
5mg vial
Lyophilised
≥99% purity
COA included
£29.99
per vial
Buy Now
★ Best Seller
Ipamorelin
Growth Hormone Secretagogue · 10mg
A selective GH secretagogue and ghrelin receptor agonist. Notable research applications in GH regulation and appetite studies.
10mg vial
Lyophilised
≥99% purity
COA included
£49.99
per vial
Buy Now
✦ New
Tesamorelin
GHRH Analogue · 10mg
A stabilised analogue of growth hormone releasing hormone. Studied for visceral adiposity reduction and GH axis modulation.
10mg vial
Lyophilised
≥99% purity
COA included
£59.99
per vial
Buy Now
✦ New
CJC-1295
GHRH Analogue (No DAC) · 10mg
A synthetic GHRH analogue commonly studied alongside Ipamorelin in GH axis research for synergistic signalling.
10mg vial
Lyophilised
≥99% purity
COA included
£49.99
per vial
Buy Now
✦ New
MOTS-C
Mitochondrial-Derived Peptide · 40mg
A mitochondrial-derived peptide encoded by the 12S rRNA. Studied for metabolic regulation, insulin sensitivity, and longevity pathways.
40mg vial
Lyophilised
≥99% purity
COA included
£59.99
per vial
Buy Now
/ PEPTIDE SPOTLIGHT
This Month: Retatrutide
★ Most Advanced Triple Agonist Available
Retatrutide
GIP / GLP-1 / Glucagon Receptor Triple Agonist

Retatrutide (LY3437943) is a next-generation triagonist peptide simultaneously targeting GIP, GLP-1, and glucagon receptors. It represents one of the most significant advances in metabolic research peptide science, with multiple Phase III trials underway globally.

Triple receptor agonism — GIP, GLP-1 and glucagon simultaneously
Phase III clinical trials across metabolic and cardiovascular endpoints
Studied for obesity, NASH, and type 2 diabetes research applications
Outperforms dual agonists in early comparative studies
From £59.99
5mg · 10mg · 20mg · 30mg available
Shop Retatrutide
/ Variants & Pricing
RT5 — 5mg£59.99
RT10 — 10mg£83.99
RT20 — 20mg£119.99
RT30 — 30mg£164.99
Purity≥99.0% (HPLC)
AppearanceWhite lyophilised powder
Storage-20°C long term / 4°C short term
SolubilityWater / acetate buffer
Batch TestedCOA with every order
Dispatch1–2 business days UK
Research Use Only. All peptides sold by RS Bio Labs are intended strictly for in vitro research and laboratory use. Not for human or veterinary consumption.
/ CURRENT OFFERS
Save More
01
🔄
Subscribe & Save
Sign up to a monthly subscription shipment and receive 10% off every order, automatically applied. Flexible — pause or cancel any time.
10% off all monthly shipments
02
🔒
Secure Payments
All transactions processed securely by Stripe, the world's leading payment infrastructure. SSL encrypted, PCI-DSS compliant, no card data stored.
⚡ Powered by Stripe
03
🧪
Free BAC Water
All orders over £150 include a complimentary 10ml vial of pharmaceutical-grade bacteriostatic water for reconstitution — automatically added.
Auto-added on orders over £150
04
🚚
Free UK Shipping
All UK orders over £100 qualify for free standard tracked shipping. Next-day delivery available at checkout for time-sensitive orders.
Free on orders over £100
05
💬
Telegram Community
Join our Telegram for restock alerts, early access to new compounds, research discussion, and community Q&A with fellow researchers.
t.me/rsbiolabs →
06
✅
Quality Guarantee
Every product is third-party HPLC tested and ships with a Certificate of Analysis. If purity doesn't match our stated specification, we'll make it right.
COA with every order
/ WHY RS BIO LABS
Built for Researchers
01
Third-Party Tested
Every batch undergoes independent HPLC and mass spectrometry testing. Certificates of Analysis provided with every order and available to download.
02
UK-Based & Compliant
We operate exclusively from the United Kingdom, ensuring fast domestic dispatch and full compliance with UK research chemical regulations.
03
Cold-Chain Handled
Lyophilised peptides stored at -20°C and dispatched with appropriate cold packaging and cold packs wherever necessary to maintain stability and purity throughout transit.
04
Transparent Pricing
No hidden fees, no inflated RRPs with fake discounts. Our prices are competitive against every major UK supplier.
/ Purity by Compound
Sema
Tirze
Reta
BPC
Ipam
All bars represent ≥98%+ purity. Chart normalised to max.
99%+
Avg. Purity
100%
COA Provided
/ STAY INFORMED