Hey Night, I'll vouch for their T3/Clen! Stuff gives me the crazy shakes. I've used the combo before from RUI. Their Clen gave me wicked headaches so I veered away from it and went t3 only. No headaches with PP's Clen, which reminds me that I need to order another T3 ASAP. PM me on here or NTBM and I'll send you the dosing schedule I use.