In short, no. The ECA stack is not illegal. Both caffeine and aspirin are over the counter and can easily be purchased at any pharmacy near you. The only ingredient you might need to worry about is ephedrine. Ephedrine is commonly found in Bronkaid, which is an under the counter medication for upper respiratory infections. In order to purchase Bronkaid, you will need to show a pharmacist your ID, but it's still 100% legal to purchase. This is why most "ECA Stacks" purchased online are fake. If you want to do the real ECA stack, you'll need to get the ingredients yourself. Thankfully, they can all be purchased 100% legally at your local pharmacy. Read more