Testolone (RAD 140) by Zyvex Pharmaceuticals
What Is Testolone (RAD 140)?
Testolone, known as RAD 140, is an oral SARM research compound developed for anabolic effect with a cleaner androgen profile in mind. Zyvex Pharmaceuticals supplies it as 15 mg tablets, 100 per pack, for laboratory study.
RAD 140 research focuses on lean mass and strength, and it is often described as the most androgenic of the common SARMs - more like a mild steroid in effect than most of its class. That is the appeal and the caution: the muscle signal is strong, and so is the suppression that comes with it.
Testolone Research Use
RAD 140 is dosed once daily; the 15 mg tablet covers most standard ranges directly.
| Protocol | Daily Dose | Schedule |
|---|---|---|
| First research run | 10 mg | Two thirds of a tablet |
| Standard lean mass | 15 mg | Once daily Common |
| Dense block | 20-30 mg | 1.5-2 tablets daily |
Research windows run 8-12 weeks. Suppression builds fast at higher doses; recovery bloodwork after the block is standard.
Testolone Stacks
RAD 140 is a SARM research compound for strength and mass studies. The stacks below pair it with Zyvex Pharmaceuticals research products and recovery support.
| Stack | Goal |
|---|---|
| Testolone + Ibutamoren (MK 677) | Strength research with GH support |
| Testolone + Cardarine (GW-501516) | Strength research with conditioning |
| Testolone + Nolvadex | Recovery after suppression |
Testolone Side Effects
RAD 140 carries real hormonal load for a SARM - suppression and lipids lead the list.
- Lipids - HDL can fall harder than with other SARMs.
- Headaches - reported early in runs.
- Sleep - some users note disrupted sleep or agitation.
This page is a product reference for research purposes. It does not replace medical advice, bloodwork review or local laws.
What is Testolone (RAD 140)?
Testolone, known as RAD 140, is an oral SARM research compound developed for anabolic effect with a cleaner profile in mind. Zyvex Pharmaceuticals supplies it as 15 mg tablets, 100 per pack.
What is the right RAD 140 dosage?
Research protocols use 10-20 mg once daily. The 15 mg tablet covers the standard range directly.
How long does RAD 140 take to work?
RAD 140 acts relatively fast for a SARM; strength and density changes usually appear within 2-3 weeks of a run.
Does RAD 140 cause suppression?
Yes. Testolone suppresses natural testosterone quickly and noticeably, more than most SARMs. Recovery bloodwork after the run is standard.
RAD-140 vs LGD 4033: which is stronger?
RAD 140 is often described as the most androgenic SARM, closer to a mild steroid; LGD 4033 leans toward mass. Both suppress.
What are the RAD 140 side effects?
Suppression, HDL drops and headaches early in the run are the main reports. Sleep changes are noted by some users.
How long does RAD 140 stay in your system?
RAD 140 has a half-life of about 60 hours, so it clears within 1-2 weeks of the last dose.
Is RAD 140 good for strength or mass?
RAD 140 is referenced for strength and lean density, making it a surplus and recomp research compound rather than a cutter.
Do you need a PCT after RAD 140?
Because suppression is strong, a SERM like Nolvadex is commonly used after longer RAD runs, confirmed by bloodwork.
Where to buy Testolone online?
Zyvex Pharmaceuticals Testolone RAD 140 is available in this shop as 15 mg tablets, 100 per pack, with international and domestic shipping.
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