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Sold strictly for laboratory research. Not for human consumption. 18+ only.
Armistane, also written arimistane, is androsta-3,5-diene-7,17-dione, a steroidal compound investigated as an aromatase inhibitor and closely related to 7-keto-DHEA. It is studied for oestrogen control rather than for anabolic activity. This bottle contains 90 capsules at 50mg per capsule, manufactured in the United Kingdom. Supplied for laboratory research only and not for human consumption.
Armistane belongs to the family of androstenedione derivatives studied as suicide, or irreversible, aromatase inhibitors. Aromatase is the enzyme that converts androgens into oestrogens, and the broader pharmacology of steroidal aromatase inhibitors is well established: exemestane, a licensed medicine used in breast cancer, works by the same general mechanism of binding the enzyme and inactivating it permanently, so that new enzyme must be synthesised before activity returns.
Armistane itself, however, has almost no dedicated literature. It is a metabolite of 7-keto-DHEA, and the aromatase inhibiting activity attributed to it rests largely on in vitro and structural reasoning about this class of molecule rather than on published clinical measurement. No controlled human trial of armistane has been published, and there is no clinical pharmacokinetic data describing what proportion of an oral dose reaches circulation.
Analytical work in anti doping journals has addressed the detection of androstadienedione compounds, and regulators have acted against supplement products containing them. The reasonable summary is that the mechanism class is well characterised in pharmacology, that armistane is plausibly a member of it, and that the specific compound has not been formally studied to the standard that would let anyone describe its activity in a person with confidence.
Every batch of Armistane is independently tested before it is released. Alpha Labs capsules are made in the UK to a fixed strength per capsule, and the batch number is printed on the label under the product name.
The certificate of analysis for each batch is published on this page and on the Lab Testing page. Enter the batch number from your bottle to see the certificate for the exact batch you hold.
Need the report for your records? Email sales@sarmsstore.co.uk with your batch number.
| Product | Armistane (arimistane, androsta-3,5-diene-7,17-dione) |
|---|---|
| CAS number | Stated on the batch certificate of analysis |
| Form | Oral capsule |
| Strength per capsule | 50mg |
| Capsules per bottle | 90 |
| 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 |
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.
What is the legal position in the UK in 2026? The position for steroidal compounds is different from the position for SARMs and it is worth being precise. Anabolic and androgenic steroids are Class C controlled substances under the Misuse of Drugs Act 1971 in the United Kingdom, and armistane is a steroidal molecule. It is supplied here strictly as a laboratory research chemical, never for human consumption, and it is not advertised or sold for any human use. Buyers are responsible for ensuring that receiving research materials of this class is permitted where they live, and international destinations are restricted accordingly.
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? Store sealed, below 25C, in a dry place away from sunlight and heat. Under those conditions the material is stable to the expiry date shown on the bottle. Humidity is the usual problem with capsules, so a cupboard is better than a windowsill or a bathroom shelf.
Is armistane banned in sport? Yes. Aromatase inhibitors are prohibited at all times under section S4.1 of the WADA prohibited list, which names this class explicitly. Anti doping laboratories screen for aromatase inhibitors and related androstadienedione compounds as a matter of routine.
How does armistane differ from a licensed aromatase inhibitor? The mechanism class is shared, but the evidence base is not. Anastrozole, letrozole and exemestane went through full clinical development with published trials, defined pharmacokinetics and regulatory review. Armistane has none of that. It is a research chemical whose activity is inferred from its chemical class rather than demonstrated in controlled studies.
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.
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