Built on
evidence.

UK research SARMs since 2020. Every bottle batch numbered, independently tested, certificate published.

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MK-2866
Ostarine bottle Ostarine MK-2866 10mg · 90 caps
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
Ostarine MK-2866 10mg 90 CapsulesMK-2866Ibutamoren MK-677 Nutrobal 10mg 90 CapsulesMK-677Testolone RAD-140 5mg 90 CapsulesRAD-140Cardarine GW-501516 Endurabol 10mg 90 CapsulesGW-501516Ligandrol LGD4033 10mg 90 CapsulesLGD-4033Advanced Muscle StackStenabolic SR-9009 8mg 90 CapsulesSR-9009Beginner Muscle StackMass Series 60 CapsulesMass SeriesShred Series 60 CapsulesShred SeriesIntermediate Cutting StackIntermediate Muscle StackYK11 Myostine 5mg 90 CapsulesYK-11Andarine S4 25mg 90 CapsulesS-4TLB-150 RAD-150 5mg 90 CapsulesRAD-150Beginner Cutting StackOstarine MK-2866 10mg 90 CapsulesMK-2866Ibutamoren MK-677 Nutrobal 10mg 90 CapsulesMK-677Testolone RAD-140 5mg 90 CapsulesRAD-140Cardarine GW-501516 Endurabol 10mg 90 CapsulesGW-501516Ligandrol LGD4033 10mg 90 CapsulesLGD-4033Advanced Muscle StackStenabolic SR-9009 8mg 90 CapsulesSR-9009Beginner Muscle StackMass Series 60 CapsulesMass SeriesShred Series 60 CapsulesShred SeriesIntermediate Cutting StackIntermediate Muscle StackYK11 Myostine 5mg 90 CapsulesYK-11Andarine S4 25mg 90 CapsulesS-4TLB-150 RAD-150 5mg 90 CapsulesRAD-150Beginner Cutting Stack

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direction.

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10 products
Cutting
Lean, dry, defined
 16 products
Bulking
Mass, strength, density
 10 stacks
Stacks
Compounds that work together
 5 products
PCT & Support
Recover properly between cycles

Most researched.

Dexterz Labs Research Series
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 (511)
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

Ten compounds.
One standard.

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

Twenty-seven peptides.
Launching 18 October.

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

Built to work together.

All stacks →
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Dexterz Labs Beginner Cutting Stack, research stack bottles (research use only)
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Dexterz Labs Intermediate Muscle Stack, research stack bottles (research use only)
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Dexterz Labs Intermediate Cutting Stack, research stack bottles (research use only)
Intermediate cutting★4.8 (64)
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Andarine + Ostarine + Cardarine
£139.99£154.99Save £15.00
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What researchers say.

4.9 / 52,700+ 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 UK research 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.