These samples include a variety of a customizable 1ml (20 drops) essential oil samples. As a clinical aromatherapist, I have tested the purity of many brands in a lab setting. doTERRA is one that always shows 100% safe for my products. I use a couple other organic brands as well but will work with you to get the exact mix you desire at a reasonable price. These kits are especially helpful for people trying out essential oils without committing to any company or 15ml bottle. Also for those looking to utilize them in DIY projects for gifts or your own branding benefits. I offer many off the shelf formulations and advice for natural skincare suggestions. Schedule a consultation with me to learn more.