T Nation

Clen and Its Effects


Had a search round Google, maybe I was wording it wrong but couldn’t find anything,

Just curious, does clen have a direct affect on fat burning e.g does something in it increase the break down of adipose tissue directly or is it just an indirect affect from the increase in calories burnt, thanks guys.


Clen is Clenbuterol. Its a bronchial dialator used in asthma patients. It also increases metabolism while preserving muscle. Its cousin is Albuterol. Both have negatives and positives.


“As a thermogenic, the effects of Clenbuterol are again very simple. As the body temperature increases, which again is due to the beta-2 stimulation, the individual is now able to burn calories at an enhanced rate. Body temperature goes up, the metabolism is enhanced, fat cells are stimulated due to the increase in temperature due to the now enhanced metabolism, the breakdown of triglycerides is now enhanced and fat loss occurs. It’s hard to get any simpler than that.”


Thanks guys, sorry for taking so long to reply, more so to andyjones.

I was just curious if it had some direct affect on fat I would have taken to keep fat gain at a minimum while bulking but if it just helps burn more calories I won’t bother and use it solely for cutting.


my $0.02 Good for cutting very strong, not expensive… With good diet fat can shed quickly… The bad… Very jittery, twitchy, hard to sleep, bad anxiety, felt very burned out after 4-5 days on…
I know some guys go 2 weeks on 2 weeks off but considering the feelings I might try the 2 days on 2 days off method next time… I have to say though clen feels to me about the same as a ECA stack, or fat burner sup, but less sides… but the jitters are fierce…


If you take too much, your heart will pound like a pile driver and can kill. Half life can lead to 16+ hours of hell. More is not better. Be cautious stacking with caffeine or other stimulants, including T3.