I was wondering if they were legit, did you buy anything else there, how was the overall quality ?
I see they sell the 6-APB 100mg "boom" pellets which are reputably trash, while their succinate powder looks exactly like the one sold on professor until the ban, it was quite good if it is the same.
The potent pellets for 6-APB were the 100 mg round sold in blisters with the RC+pharma logo, and the oval 120 mg.