Like I said, it's not bunk, so you'll get results, you just aren't getting a quality product. It's like roulette with them, and the potential for infection is somewhere in the wheel with them. Just hope your ball doesn't land in that space... Once you start using astro's product you'll be able to tell the difference. I believe there was a thread somewhere in here of someone who switched from GP to Astro's product, (test) and swore GP was shit compared to his.
Tbol is notorious for fast water gains, and it's an oral so it's fast acting, so it's probably it. Happy moon facing!