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Clenbuterol HCL 40 mg
Description
What is Clenbuterol HCL 40 (Astera Labs)?
Astera Labs clenbuterol in 40mcg tablets, 100 to a sachet. The compound people run at the end of a cut, when the diet is already working.
Also sold as Clen or Spiropent.
It is not a steroid. Clenbuterol is a sympathomimetic, closer in mechanism to adrenaline than to testosterone: it raises body temperature and metabolic rate slightly, and it does that continuously rather than in the short spike a caffeine-based burner gives. That is also why it comes with a stimulant load and a hard limit on how long it can be run.
Clenbuterol HCL 40 benefits
- Raises metabolic rate through the day rather than in a short spike after a dose
- Helps protect lean mass during a deficit, which is where most cutting damage happens
- Not a steroid, so nothing to suppress and no post-cycle therapy required
- 100 tablets covers a full ramp and a second block without reordering
Clenbuterol HCL 40 dosage
- Starting dose
- 40mcg per day for the first 3 days
- Ramp
- Increase by 20mcg every 3 days
- Ceiling, men
- 120mcg per day
- Ceiling, women
- 80 to 100mcg per day
- Timing
- Whole dose in the morning
- Maximum duration
- 12 weeks
The ramp is not optional. Starting at the ceiling is what produces the shakes, the racing heart and the cramps people associate with clenbuterol. Building up over two weeks lets tolerance develop alongside the dose.
The half-life is around 37 hours, so the whole daily amount goes in first thing in the morning. Splitting it across the day does not steady anything and reliably wrecks sleep.
Package content
- Tablets
- 100 per sachet
- Strength
- 40mcg clenbuterol HCl per tablet
- Clenbuterol per sachet
- 4000mcg, which is 4mg
- Form
- Oral tablets
- Brand
- Astera Labs
A full two-week ramp from 40mcg to 120mcg uses roughly 25 tablets, so one sachet covers two full blocks.
Store below 30°C. Protect from light. Do not freeze. Keep out of reach of children.
Who is Clenbuterol HCL 40 for?
People at the end of a cut, where the diet is already producing results and they want the last of it to move faster. It is a finisher, not a substitute for a deficit.
CLENOMED 40 is the same 40mcg strength from Deus Medical in a 50-tablet box. The 100-count sachet here suits the ramp protocol, which gets through tablets quickly.
How to use Clenbuterol HCL 40
Swallow with water first thing in the morning, the whole daily dose at once. Ramp up over roughly two weeks rather than starting at the top.
Frequently asked questions
Does clenbuterol work without dieting?
No, and this is the most common disappointment with it. Clenbuterol raises metabolic rate modestly. It does not create the deficit that actually removes fat.
Run at maintenance calories you get the tremor, the raised heart rate and the sweating, and almost none of the fat loss. It accelerates a cut that is already working.
Why do I get cramps on it?
Clenbuterol depletes taurine and shifts electrolytes, and the cramping that follows is the most common complaint about it.
Taurine at a few grams a day, adequate potassium and enough water usually handle it. Cramp severe enough to stop you training is a sign the dose has climbed too fast.
Two weeks on, two weeks off, or continuous?
Both are used. The two-on two-off pattern exists because the beta-2 receptors downregulate, and the break is meant to restore sensitivity.
The continuous approach ramps the dose instead to stay ahead of that. Either way twelve weeks total is the ceiling, and that limit is about the heart rather than about tolerance.
Does it need PCT?
No. Clenbuterol is not a hormone and it does not suppress testosterone, so there is nothing for a SERM to do.
It is not a steroid and it does not build muscle. It preserves a little lean mass in a deficit, which is a different claim.
Is it banned in sport?
Yes, at all times, in and out of competition. Clenbuterol is on the prohibited list and it has been behind a number of high-profile positives.
It also has a long detection window. If you are tested at any level, this is not a compound to run.
All products are supplied exclusively for research and evaluation purposes and are not positioned as medical treatments or health solutions.
