Built on
evidence.

UK SARMs & Peptides. Batch tested, independently certified.

Rated 4.9 from 2,873 verified reviews

Best sellers.

Dexterz Labs, batch tested
Dexterz Labs Ibutamoren MK-677 Nutrobal 10mg 90 Capsules - product bottleBest seller
MK-677 · 10mg · 90 caps4.8 (423)
Ibutamoren MK-677 Nutrobal
£59.99£89.99
Save £29.98 in the Intermediate Muscle Stack
Dexterz Labs Ostarine MK-2866 10mg 90 Capsules - product bottleBest seller
MK-2866 · 10mg · 90 caps4.9 (512)
Ostarine MK-2866
£44.99£79.99
Save £9.99 in the Beginner Cutting Stack
Dexterz Labs Testolone RAD-140 5mg 90 Capsules - product bottleBest seller
RAD-140 · 5mg · 90 caps4.9 (271)
Testolone RAD-140
£59.99£79.99
Save £19.99 in the Beginner Muscle Stack
Dexterz Labs Cardarine GW-501516 Endurabol 10mg 90 Capsules - product bottleBest seller
GW-501516 · 10mg · 90 caps4.9 (211)
Cardarine GW-501516 Endurabol
£54.99£89.99
Save £14.98 in the Intermediate Cutting Stack
Batch numbered
Independently tested, certificate published per batch
Free UK tracked delivery over £60
Tracked service. Same day dispatch before 2pm
Discreet & secure
Plain packaging, no product names
30-day returns
Unopened products, full refund

Ten products, one range.
One standard.

UK encapsulated, batch numbered, independently tested. The house SARMs range since 2020.

Explore Dexterz Labs

Twenty-seven peptides.
Launching 18 October.

Lyophilised vials and capsules, colour coded by series, batch numbered from the first run.

Explore Origin Peptides

Built to work together.

All stacks →
Most popularDexterz Labs Beginner Muscle Stack, research stack bottles (research use only)
Beginner4.9 (110)
Beginner Muscle Stack
Ligandrol + Testolone
£99.99£119.98Save £19.99
View stack
Dexterz Labs Beginner Cutting Stack, research stack bottles (research use only)
Beginner cutting4.9 (57)
Beginner Cutting Stack
Ostarine + Andarine
£89.99£99.99Save £10.00
View stack
Dexterz Labs Intermediate Muscle Stack, research stack bottles (research use only)
Intermediate4.9 (79)
Intermediate Muscle Stack
Ligandrol + Ibutamoren + Testolone
£149.99£179.99Save £30.00
View stack
Dexterz Labs Intermediate Cutting Stack, research stack bottles (research use only)
Intermediate cutting4.8 (64)
Intermediate Cutting Stack
Andarine + Ostarine + Cardarine
£139.99£154.99Save £15.00
View stack

SARMs, made in the UK since 2020

SARMs Store supplies research-grade selective androgen receptor modulators and related compounds to laboratories, researchers and universities across the United Kingdom and Europe. Every Dexterz Labs product is encapsulated in the UK, batch numbered on the label and sold strictly for laboratory research. Nothing on this site is for human consumption.

More about SARMs Store

The range covers the compounds that appear most often in the published literature. Ostarine (MK-2866) is the most studied, with phase II and phase III trial data. Ligandrol (LGD-4033) and Testolone (RAD-140) reached phase I. Ibutamoren (MK-677) is a growth hormone secretagogue rather than a SARM, studied in older adults for two years. Cardarine (GW-501516) and Stenabolic (SR-9009) act on metabolic pathways rather than the androgen receptor. Andarine (S-4), YK-11, S-23, ACP-105 and TLB-150 are preclinical compounds with animal or cell data only. Combined formulations are listed under research stacks.

Each product page states the strength per capsule, the capsule count, the batch number format and a plain summary of what the published studies measured, what they did not, and where the compound stands in UK law. Our SARMs 101 guide explains how the compounds differ, and the Batch testing page explains how to match a bottle to its certificate of analysis. Independent batch certificates of analysis are being commissioned and will be published as each batch is tested.

Orders are dispatched the same working day when placed before 2 pm, by tracked delivery, free in the UK over £60. We have supplied the same compounds, at the same stated strengths, since 2020. Research use only. 18+.

What customers say.

4.9 / 52,900+ verified reviews

“Fast dispatch, arrived next day in plain packaging. Exactly as described.”

Verified buyer, Manchester · Ostarine MK-2866

“Ordering here for years. Consistent every single time.”

Verified buyer, Leeds · Testolone RAD-140

“Batch number on the bottle matched the certificate on the site.”

Verified buyer, Bristol · Intermediate Muscle Stack
Read all reviews →Independently collected by Okendo
Batch
Numbered and tested

Independent UK lab testing. Certificate published against the number on your bottle.

2020
Supplying the UK since

Six years, same products, same standard. No reformulations, no rebrands.

<2pm
Same-day dispatch cutoff

Tracked delivery from our UK warehouse. Plain box, no product names.