Clenbuterol (often referred to simply as "Clen") is not a steroid, but a Beta 2 Sympathomitetic and central nervous system (CNS) stimulant. It is a specific agonist, stimulating the adrenergic beta 2 receptors. It is used in certain countries in a medical sense as a bronchodilator in the treatment of asthma, though not in the UK and USA, mainly due to its long half life.
Athletes and bodybuilders use the drug due to its thermogenic and anti-catabolic effects. This is down to its ability to slightly increase the body's core temperature, thereby raising calorie (energy) expenditure. It is thought that a 1ºF increase yields around a 5% increase in maintenance calories burned. Studies on livestock suggest that clenbuterol also has anabolic properties. However, this seems not to be the case in humans, thought to be due to the fact that humans lack the abundance of beta 3 receptors which increase insulin production and sensitivity.

Clenbuterol Uses

Clenbuterol is most commonly utilized in cutting, pre-contest, and fat loss cycles. It is very rarely utilized during the off-season or during bulking phases. Some small fraction of Clenbuterol users might elect to use it during bulking phases in a (mostly vain) attempt to stave off fat gain during a bulking period where caloric consumption is much higher than usual, and normally above basal metabolic levels. The truth of the matter here is that those who elect to do this are essentially wasting time and money, as the mechanics of Clenbuterol do not even provide for this effect. As previously explained, Clen is responsible for binding to receptors on fat cells and initiating lipolysis, which is the process of the release of triglycerides stored in fat cells into the blood stream as free fatty acids. These free fatty acids then circulate around the bloodstream throughout the body, and they must undergo the second stage of fat loss: fatty acid oxidation. This means the fatty acids must be shuttled into cells and into the mitochondria to be "burned" off, which cannot occur in any significant amount if caloric consumption is too high.

Is Clenbuterol Safe For Human?

The simple answer is YES. If taken according to instruction, there is no danger it poses to the body. The safety of the drug will likely depend on how disciplined the user is when it comes to following instructions on how to use it. There are however some side effects noted which can vary from mild to sometimes severe. These side effects should diminish when the use is stopped. For cases where there are some side effects even after stopping the use, it is important to seek medical attention.

RETATED PRODUCTS:

Testosterone                          CAS 58-22-0

Testosterone Propionate        CAS  57-85-2    

Testosterone Enanthate         CAS  315-37-7    

Testosterone Decanoate        CAS  5721-91-5 

Testosterone Acetate             CAS  1045-69-8  

Testosterone Phenylpropionate  CAS 1255-49-8

Testosterone Cypionate          CAS  58-20-8

Testosterone Isocaproate       CAS 15262-86-9

Testosterone undecanoate      CAS  5949-44-0

Formestane                            CAS  48-35-1             

Sustanon    

Boldenone                            CAS  846-48-0              

Boldenone Acetate               CAS   846-46-0            

Boldenone Cypionate           CAS  106505-90-2 

Boldenone Undecylenate      CAS  13103-34-9 

Nandrolone                          CAS  434-22-0 

Nandrolone Decanoate         CAS   360-70-3

Nandrolone Phenylpropionate   CAS 62-90-8

Metenolone Enanthate           CAS   303-42-4

Metenolone Acetate              CAS   434-05-9 

Trenbolone Acetate               CAS   10161-34-9     

Trenbolone Enanthate           CAS   2322-77-2    

Drostanolone Propionate       CAS  521-12-0

Drostanolone Enanthate        CAS   472-61-145

Oxandrolone                         CAS  53-39-4

Fluoxymesterone                   CAS  76-43-7

(+)-Dehydroisoandrosterone    CAS  53-43-0             

Methandienone                 CAS   72-63-9        

Stanozolol                        CAS   10418-03-8             

Oxymetholone                  CAS  434-07-1

4-chloro-17a-methyl androst-1,4 diene-3-17b-dione   CAS 2446-23-3          

Mesterolon                      CAS  1424-00-6                

Methasteron                   CAS  3381-88-2

Methyltestosterone         CAS  58-18-4

Methyl-1-Testosterone    CAS  65-04-3

1-DHEA  

4-DHEA    

1,4-DHEA   

1-Testosterone              CAS  65-06-5

1-Testosterone Enanthate   

1-Testosterone Acetate    

Mestanolone                  CAS  521－11－9

Stanolone                      CAS  521－18－6

Exemestane                   CAS  107868-30-4

Estrone                          CAS  53-16-7

Estradiol                        CAS  50-28-2

Estriol                            CAS  50-27-1

Trenbolone cyclohexylmethylcarbonate     CAS  23454-33-3

Tamoxifen                  CAS 10540-29-1               

Clomifene                  CAS  911-45-5       

Tadalafil                      CAS   171596-29-5     

Sildenafil                     CAS   171599-83-0

Vardenafil hydrochloride     CAS  224785-91-5

Anastrazole                    CAS  120511-73-1        

Letrozole                       CAS  112809-51-5

Xenical Orlipastat           CAS  96829-58-2 

Rimonabant                 CAS  168273-06-1 

Sibutramine                 CAS  106650-56-0