It's a tricky name to sound like nolvadex (tamoxifen). If you can buy it legally, it's not the real stuff and not worth your money. And in truth, if you were to go get the real thing it would be a really big mistake. It's given for post treatment
breast cancer patients to reduce
estrogen levels. In a male who is not using illegal substances that increase testosterone with a concurrent rise in estrogen (sorry, that's just how the body works...always staying in balance) it would do you no good anyway.
My suggestion is to stop looking for shortcuts and keep doing the hard work you've been doing. It is working. Why do something that will screw up your HTPA, possibly beyond repair, at your young age? What you are doing so far is working just fine. So KEEP DOING IT.