For consistent accurate results for THC CBD CBN CBG with a easy to use Thin Layer Chromatography ( TLC ) testing kits you can test your self starting at only $8.00 per test ( don't let the price fool you) and get the same results within 1% of any qualified GC machine + test your Hemp to make sure it has less than 1% THC for your CBD products. we have been selling world wide for over 10 years with great success TLC Lab Supply with FREE shipping in the USA, we sell world wide on a daily bases, Health Canada approved, tested by High Times magazine and other media outlets Visit: for a tom of information and instructional video. This is a complete test kit we have 3 sizes and can be used for breeding as well as creating products with consistent results. Amy substance with more then 1% cannabinoids will show up on the TLC plate. If less then 1% for Hemp growers a blank spot will be were the THC marker would be. Make your business cost effective refill kits are even cheaper, World wide compliant