Before oils, you wouldn't have caught me dead with crystals. But, after studying EOs, color me changed. So, why not crystals, which--like pure EOs--are from the earth and have a scientifically measurable frequency. Heck, I charged a crystal under the light of the full moon after learning it can charge crystals, and again, science backs that up, so why not? They are a perfect pair, oils and crystals. We love sharing them together. It's yet another wonderful way to connect with our members in pursuit of our higher selves.