ScienceLab Pure Drops offers 400mg of THC in a Premium Distillate Tincture. Made only with the highest grade distillate, diluted into a high quality MCT coconut oil. All of their products are tested in-house by ScienceLab chemists. They employ a GC or HPLC/UPLC to validate their resin as well as their bulk stock product. Science Labs also test for microbials and heavy metals.