Hey.. I just purchased 30ml of clenbuterol for $250 dollars. I started taking it 2 days ago and am yet to feel any side effects (headaches, increased heart rate, muscle cramps etc etc). Very worried that I have been sold a dud product. I bought it off a person who I consider/ed a friend so I trusted him to deliver a genuine product. I don't want to accuse him of selling me a dud product just yet until I can confirm if it is fake or not. Can someone who has had experience with Clen tell me if these side effects take a while to kick in? or if they kick in immediately? Because I feel no different to before I started taking the product. The product is a clear gel very similar to hair gel.. It has an unusual taste. Any help would be greatly appreciated. Thanks.