Dexterz Labs · Research Series In stock

Beginner Cutting Stack

2 bottles · 180 caps

£89.99£99.99Save 10%50p per capsule
4.957 reviews Rated 4.9 out of 5 from 57 reviews

Multibuy saving applies across any products in your basket. Add a second bottle and pay £85.49 each.

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Batch testedCertificate for every batch
Free UK trackedOn orders over £60
Discreet packagingPlain outer, no product names
30-day returnsSealed and unopened
4.9from 57 verified reviews
from 57 reviews
UKUK based supplier
Encapsulated and dispatched from our UK warehouse
UK supplier
About Beginner Cutting Stack

About Beginner Cutting Stack

The Beginner Cutting Stack brings together two of the earliest and best characterised selective androgen receptor modulators, ostarine (MK-2866) at 10mg per capsule and andarine (S-4) at 25mg per capsule, supplied as two separate bottles of 90 capsules each. Both compounds are manufactured in the United Kingdom. The bundle is supplied for laboratory research only and is not for human consumption.

Read the full research summaryHide the research summary

What the research says about the compounds in this bundle

Each compound in this bundle has its own literature, and the honest way to describe a multi compound bundle is to summarise each one separately.

Ostarine (MK-2866), 10mg per capsule, is the most studied compound in the category. Dalton and colleagues reported in the Journal of Cachexia, Sarcopenia and Muscle in 2011 that twelve weeks of enobosarm increased total lean body mass and stair climbing power against placebo, and Dobs and colleagues reported similar lean mass findings in Lancet Oncology in 2013.

Andarine (S-4), 25mg per capsule, is preclinical. Gao and colleagues showed in Endocrinology in 2005 that it restored levator ani muscle and bone strength in castrated rats with only partial prostate stimulation, and Kearbey and colleagues reported preserved bone mineral density in ovariectomised rats in 2007.

No published trial has tested these compounds together. Every figure above comes from a study of a single compound in a specific population, and combination pharmacology cannot be inferred by adding those studies together. Where components suppress the endogenous hormonal axis, as LGD-4033 and RAD-140 do, no published data describe what happens when they are combined. This bundle exists because researchers buy these compounds together, not because a combination protocol has been validated.

Read the guide

Lab testing

Dexterz Labs products are manufactured in the UK to a fixed strength per capsule with the batch number printed on every bottle. Every batch is independently tested and its certificate of analysis is published on the product page and on the Lab Testing page. If you need the batch report for research records, contact sales@sarmsstore.co.uk with your batch number.

Printed on the label under the product name.
Specification
Compounds Ostarine (MK-2866) and andarine (S-4)
Form Oral capsules, supplied as separate labelled bottles
Strength per capsule Ostarine 10mg, andarine 25mg
Capsules per bottle 90 of each compound, two bottles
Manufactured United Kingdom
Testing Every batch independently tested; certificate of analysis published on this page and the Lab Testing page
Storage Cool, dry place below 25C, sealed, away from direct sunlight
Research use only Yes. Not for human consumption
Delivery and returns

Orders placed before 2pm Monday to Friday are dispatched the same day. Tracked UK delivery is free over £60 (£3.49 below), usually two to three working days, with a next day upgrade for £4.49 at checkout. Packaging is plain with no product names on the outside.

Unopened products can be returned within 30 days of delivery for a full refund, and faulty items within 14 days.

Questions

Is this bundle legal in the UK in 2026? None of the compounds in this bundle is controlled under the Misuse of Drugs Act 1971, so buying and holding them as research chemicals is lawful in the United Kingdom in 2026. Selling or advertising any of them for human use would make them unlicensed medicines under MHRA rules, which is why this listing carries no usage guidance.

How fast is delivery? Orders placed before the daily cut off are despatched the same working day by tracked delivery, with UK orders usually arriving within two to three working days and a next day upgrade available at checkout. Everything leaves in plain outer packaging with no reference to the contents or to the compound on the outside of the parcel. International delivery is available to most countries, although some destinations are restricted because of local customs rules, and restricted countries are listed at checkout.

How should the capsules be stored? Keep the bottle sealed in a cool, dry place below 25C and out of direct sunlight. Stored that way the capsules remain stable for the shelf life printed on the label. Avoid humid environments such as bathrooms and kitchens, because moisture is the main cause of degradation in capsule form.

Are these compounds banned in sport? Yes, all of them, at all times. The SARMs fall under section S1.2 of the WADA prohibited list, MK-677 under section S2 as a growth hormone secretagogue, and cardarine and SR-9009 under section S4.5 as metabolic modulators. Detection methods exist for each.

Why are these two compounds bundled together? Because they came out of the same research programme and are the two most frequently studied non steroidal androgen receptor ligands in the early literature, which makes them the pair most often requested together. Ostarine is the one with completed human trials. Andarine stopped at preclinical work and has a much shorter half life. The pairing reflects purchasing patterns among buyers, not a tested protocol.

Research use only. This product is supplied strictly for laboratory and research purposes and is not for human consumption. It is not a medicine, it is not a food supplement, and it is not intended to diagnose, treat, cure or prevent any disease. Sold to persons aged 18 or over only.

Most bought together.

Add all four and save 10%

PCT and cycle support are the two products most often added to this stack. Three items takes 10% off everything.

Reviews

4.9 from 57 · Powered by Okendo

average rating 4.9 out of 5
Based on 57 reviews
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100% of reviewers would recommend this product to a friend
57 Reviews
Reviewed by Jake D.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Awesome product

Excellent really enjoying the cycle and good quality

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Reviewed by darren h.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Cutting stack

Used this combo a few times now great results lean definition around Abbs 👌🏻

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Reviewed by Lewis W.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Cutting stack

Been 2 weeks

Spot on

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Reviewed by Mat M.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

spot on

well it works, lol

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Reviewed by Piotr P.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great Stuff

Perfect👌

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