Description
Letro-Exem Mix is a combined aromatase inhibitor research liquid, and Pure Rawz sells it as a liquid. Every batch is tested for 99% purity or better, and it’s sold for laboratory research only.
Letro-Exem Mix explained
Letro-Exem Mix is a research liquid that holds two aromatase inhibitors in one bottle: letrozole, a non-steroidal reversible inhibitor, and exemestane, a steroidal irreversible one.
Both are approved breast cancer drugs, as Femara and Aromasin.
Mechanism of action
Letrozole binds the heme group of aromatase and blocks it as long as it’s present. Exemestane binds the enzyme’s active site and inactivates it permanently.
Together they cover both reversible and irreversible inhibition.
What studies say about Letro-Exem Mix
Letrozole’s data include the BIG 1-98 trial, and exemestane’s include the IES trial, both in postmenopausal breast cancer.
Labs that study estrogen suppression use the pair to compare the two inhibitor types.
For the studies themselves, try this PubMed search.
Options and prices
This listing is a 30ml bottle of liquid for $49.99.
The liquid comes in a glass dropper bottle at a stated concentration per mL, so every draw is easy to calculate.
How labs use it
Research on hormone support compounds usually measures LH, FSH, testosterone, estradiol and SHBG, often during recovery after androgen exposure. Timing of blood draws matters because these hormones change through the day.
Aromatase inhibitors, SERMs and gonadotropin-type compounds act at different points in the hormone axis, so studies often compare them directly.
Draw blood at the same time of day for every sample, since testosterone and LH follow a daily rhythm.
Letro-Exem Mix at a glance
- Compound: Letro-Exem Mix Liquid
- Class: combined aromatase inhibitor research liquid
- Forms: liquid
- Size: 30ml
- Purity: 99% or higher, verified by first- and third-party testing
- Use: laboratory research only
Purity and batch testing
We test each batch for identity and purity before it ships, using HPLC and mass spectrometry, with independent third-party checks on top of our own.
The batch number on the label matches the certificate of analysis. If your lab keeps paperwork on file, ask us for it and we’ll email it over.
How to store Letro-Exem Mix
Store liquids at room temperature with the cap screwed on, away from heat and light. Note the batch number and the date you opened it in your lab records.
Handling notes
Wear gloves and eye protection when you open or measure it, and work on a clean surface.
Label everything you prepare, keep it away from food areas, and follow your lab’s rules for disposing of sharps and chemical waste.
Supplies to have on hand
- a graduated 1mL dropper or syringe for accurate volumes
Other compounds to look at
- 7-Keto DHEA: 7-Keto DHEA is 3-acetyl-7-oxo-dehydroepiandrosterone, a natural metabolite of DHEA.
- Indole 3 Carbinol: Indole-3-carbinol is made when broccoli, cabbage and other cruciferous vegetables are cut or chewed, from the breakdown of glucobrassicin.
- 6-OXO: 6-OXO is the trade name for androst-4-ene-3,6,17-trione, a steroid that permanently blocks aromatase.
- Letrozole: Letrozole is a nonsteroidal aromatase inhibitor developed by Novartis and approved as Femara.
- Anastrozole: Anastrozole is a nonsteroidal aromatase inhibitor from AstraZeneca, approved in the US in 1995 as Arimidex.
See the rest of our PCT and hormone support for more options.
Similar compounds compared
Dutasteride: Dutasteride blocks both type 1 and type 2 5-alpha-reductase, the enzymes that turn testosterone into DHT. It’s approved as Avodart for an enlarged prostate.
Finasteride: Finasteride is a 5-alpha reductase inhibitor from Merck. It was approved as Proscar for an enlarged prostate in 1992 and as Propecia for male pattern hair loss in 1997.
Letro-Exem Mix questions
Can it be used in people or animals?
No. It’s sold for laboratory research only and isn’t approved for human or veterinary use.
How should I store it?
Follow the storage section above. In short: cold and dark for freeze-dried vials, room temperature and dry for capsules, tablets, powders and liquids, unless the label says otherwise.
Is Letro-Exem Mix in stock?
Yes. It’s in stock and ships from our warehouse after your order clears.
Does it come with a certificate of analysis?
Yes. Every batch is tested, and we’ll email the certificate of analysis for your batch number on request.
Buy Letro-Exem Mix online
Letro-Exem Mix is in stock at $49.99. Add it to the cart and check out in a couple of minutes.
Need more for the same project? Have a look at our PCT and hormone support.
For laboratory research use only. Not for human or veterinary use. These statements have not been evaluated by the FDA.
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