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SR9009 10 mg – Astera Labs
Description
What is SR9009 10 (Astera Labs)?
Astera Labs stenabolic in 10mg tablets, 50 to a sachet. Endurance through the body clock rather than through hormones, and it has to be dosed several times a day.
Also sold as stenabolic or SR-9009.
Stenabolic works differently again. It is a Rev-Erb agonist, acting on the proteins that regulate your body clock and, through them, on how cells handle fuel and how many mitochondria they build. The effect people take it for is endurance and metabolic rate rather than anything to do with hormones, so nothing is suppressed.
SR9009 (Astera) benefits
- Increases mitochondrial activity, which is where the endurance effect comes from
- Does not act on hormones, so nothing is suppressed
- No post-cycle therapy needed
- Often paired with cardarine for endurance work
- Does not carry a stimulant load
- 10mg tablets, which suit the split dosing this compound needs
SR9009 dosage
- Standard
- 20 to 30mg per day total
- Frequency
- Split into 3 or 4 doses across the day
- Why split
- Half-life is only a few hours
- Timing
- One dose pre-training
- Cycle length
- 8 to 12 weeks
- Post-cycle therapy
- Not needed, nothing is suppressed
The dosing frequency is the whole protocol. One dose a day leaves the compound absent for most of it, which is the commonest reason people report no effect.
Three or four smaller doses, one of them before training.
Package content
- Tablets
- 50 per sachet
- Strength
- 10mg stenabolic per tablet
- Stenabolic per sachet
- 500mg
- Half-life
- A few hours
- Brand
- Astera Labs
At 30mg a day split into three, one sachet covers around 16 days.
Store below 30°C. Protect from light. Do not freeze. Keep out of reach of children.
Who is SR9009 (Astera) for?
Endurance athletes willing to dose several times a day, usually alongside cardarine.
SR9009 10 is the same strength from Deus Medical, and the Biaxol capsules add black pepper extract, which matters on a compound absorbed this poorly.
How to use SR9009 (Astera)
Swallow with water three or four times across the day, one of them before training.
Frequently asked questions
How is stenabolic different from the other compounds here?
It acts on the body clock and cellular metabolism rather than on androgen receptors, so the effect is endurance and work capacity rather than muscle.
The practical upside is that it does not suppress testosterone and needs no post-cycle protocol.
Why does it need dosing several times a day?
Because the half-life is only a few hours and oral absorption is poor. One dose a day leaves the compound absent for most of it.
Three or four smaller doses spread across the day is what the protocols call for. This is the single biggest reason people report getting nothing from it.
Does it need PCT?
No. Stenabolic does not act on hormones at all, so there is nothing suppressed and nothing for a SERM to restart.
It sits alongside cardarine and MK-677 as one of the few things in this category where that is true.
Stenabolic or cardarine for endurance?
Cardarine, if you have to pick one. It is better absorbed, longer acting and the endurance effect is more consistently reported.
Stenabolic is often added alongside rather than instead of it, and the two work through different mechanisms so there is a reasonable case for pairing them.
How much of the research is human?
Very little. Most of what is written about stenabolic extrapolates from mouse studies, where the results were genuinely striking.
Whether that translates at the doses and absorption humans actually achieve is much less established. Treat it as the more experimental of the endurance compounds.
All products are supplied exclusively for research and evaluation purposes and are not positioned as medical treatments or health solutions.
