Review on Cliganic USDA Organic Aromatherapy TOP 12 Essential Oils Set, 100% Pure - Peppermint, Lavender, Eucalyptus, Tea Tree, Lemongrass, Rosemary, Frankincense, Orange, Lemon, Cassia, Cedarwood & Grapefruit by Jessica Wood

I bought this set last June and just opened it now. The fact that the oils are SO fresh upon opening nine months later says a lot.A few things you have to understand:The negative review about allergy upon skin contact is only ONE case. As someone with a ton of skin sensitivities and contact dermatitis, I also got a tiny bit itchy with mixing the orange, lemongrass and rosemary onto my skin but THAT'S BECAUSE YOU'RE NOT SUPPOSED TO DO THAT. These are 100% essential oil, NOT mixed with any kind of carrier. If you go to Whole Foods and buy one of the AuraCacia oils, many are mixed with jojoba oil so that they are easier on skin. Yes, they also have a line of 100% essential oils but these are a much better value. These are FULL POTENCY and VOLATILE which means yes, they *can* burn skin and SHOULD NOT be used on or around pets (do research as I know some oils are poisonous to cats). Any full potency oil can be extremely toxic to children if ingested. If you are making a batch of homemade lotion, DIY sanitizers or whatever else, you add like 4-5 drops for every CUP of product. More than that is going to be way too much. That said, this is actually a REALLY great value for this entire set. And non-GMO, Organic?! AMAZING.