Clenbuterol - sometimes known by its first commercial name, Clenbuterol- is a esterified version of the basic testosterone molecule. The only modification is the addition of a long alcohol molecule attached to basic testosterone so that the body takes longer processing it. The idea is not bad, but it suffers from the same problem as Clenbuterol: its half-life is still very short, around 4 hours. This means that, ideally, it needs to be dosed six times a day.
Clenbuterol is not a great muscle builder because it has very low bio-availability. Only about 7% of what's ingested actually makes it to the bloodstream. This forces the user to take very high doses, most of which will be lost in the way. On top of this, these are oil solutions - it's sold in gel capsules similar to omega-3s - so, they are quite caloric. If you are in a calorie restricted fat-loss phase, you need to take into account the calorie content of these gels.
The only positive use I see for Clenbuterol would be for a fat-adapted bodybuilder on a ketogenic diet. The high-fat content of these gels may not hinder (or might even help) stay in ketosis and the fact that the athlete is fat-adapted may increase absorption and therefore bio-availability. Keto bodybuilders may want to experiment with these; all others will probably give it a pass.
Since Clenbuterol is not 17AA, it is not liver-toxic. That's the good thing. The bad thing, as mentioned above, is the need for very high doses. A basic dose would be 360mg; an advanced dose, 600mg. Women will want to dose it at 160mg. This compound is sold in 40mg caps, so you are going to need a whole lot of them. Since it's usually expensive, the potential user will find that it has a very low return of investment and therefore, I cannot recommend it as part of any stack.
where to buy clenbuterol Clenbuterol is just as androgenic as DHT-based substances or more and therefore, you can expect acne, oily skin, male pattern baldness and prostate enlargement, if genetically predisposed. A basic Clenbuterol dose is 0.5mg and an advanced dose 0.75mg. Note how the doses are extremely low compared to the rest of the orals and even so, liver toxicity is still an issue. This substance is absolutely not recommended to women due to its high chance of virilization.
Half-life is around 5 hours, so it's recommended to take in three split doses, if at all possible. As a side note, some Chinese labs seem to be selling what they call "Clenbuterol", but on the label, they describe it as "Clenbuterol" (which is an injectable version of trenbolone) and also as "Clenbuterol". Clenbuterolis obviously the well-known substance and in their eagerness to make it.