there have been independent labs that have tested these unregulated research chemical sites. if I told you how many sarm's companies out there actually sell real sarm's you wouldn't believe me. we are talking a very tiny %.
a media outlet in Canada that was doing a story on PED use by people, actually tested different sarm's companies.. sarms1 was the only one with actual sarm's.. you can look for the video on youtube.. the other sarm's companies either had underdosed or fake product. one company they couldn't even figure out what was in the product, it could have been semen for all we know