Should I be worried about sarms1? I got blue s4 and clear with a tint of yellow for MK.
I would not trust any sarms from sarms1 bro. The quality is very poor, as it really went downhill big time the last couple years
I would only use www.sarmsx.com for my sarms needs. It's the only source I trust for sarms.
(PM me for a price list for Biotech Labs and 10% discount)