Hands down – Five-star customer service, five-star products!! — honestly, I have nothing to complain about. I started with sema and it completely eliminated my food noise and cravings. It really does work. The only downside for me was the nausea — sema definitely comes with a little of that. A few friends recommended switching to tirza since it’s supposed to be much easier on nausea, so I decided to make the change. I’ll come back in 2–3 months with an update on how tirza is working for me, but so far, I’m impressed. Certified Peptides is definitely ⭐️⭐️⭐️⭐️⭐️across the board. Hands down