Using our SmartScent™️ design, our selected scents must meet the EU (European Union’s) strictest standards to help consumers avoid common allergens. With that as our guiding light in design, we then select a combination of natural ingredients in addition to a carefully selected nature identical/synthetic materials to perfect the freshest, purest notes with enhanced stability and safety. This technology allows us to have a great smelling product without loading in unnecessary (and often) irritating essential oils and extracts. We think it’s a great combination of nature and science. We like science and work with the premier fragrance house in the world, based in New Jersey. (EWG Not Rated)