"Pure Ratios proudly presents the first and only line of patent pending, 96-hour topical reservoir patches. They are naturally pure and additive free. Our Topical Patches are: Hypoallergenic and water-resistant Lab tested Made with all natural ingredients No chemical enhancers or adhesive mixed in with reservoir formula Skin tone patch for discrete use 40mg dosage Round design with no corners to cause patch to peel off Last 3-4 days The Pure Ratios Topical Reservoir Patch design enables pure dosing of non-DMSO, GMO free, all natural medicine. Some patches utilize DMSO (dimethyl sulfoxide), an industrial solvent that is a by-product of making paper as an excipient, the delivery method to get medicine across the skin barrier. We have chosen not to use DMSO as our delivery method. Our excipients are all organic. Additionally, we do not mix adhesive in with the active components, unlike the other patches on the market. The competitive patches currently available all use monolithic (single layer) design, where the medicine is mixed in with the adhesives, which takes up surface area and restricts absorption of available medicine. This is why they cannot deliver a longer-term effect using their design. Additionally, the adhesive and its chemicals are absorbed into the bloodstream along with the medicine. OUR PATCHES ARE REVOLUTIONARY IN THAT: No adhesive is absorbed into bloodstream only pure medicine is absorbed. No chemicals added like DMSO (which is illegal in CA). Uses whole plant supercritical CO2 extracted oil to provide all of the goodness of the natural plant. Reservoir Patches provide accurate ratios, and larger quantities of available cannabinoidsfor delivery. Reservoir Patches provide fast and effectivedelivery of medicine outside the digestive process providing undiluted absorption of cannabinoidsinto the bloodstream. Pure Ratios Patches provide a significantly longer period of dosing, typically 3-4 days (up to 96 hours) because of our unique reservoir design. Our water resistant adhesive stays put to allow for prolonged adhesion to skin surface, promoting long term delivery. 40 mg at a ratio 4 Parts CBD / 1 Part THC Hypoallergenic, Extended Wear Supercritical CO2 Extracted All Natural, Certified Non-GMO Up to 96 hours RELIEF FOR MEDICAL USE ONLY KEEP OUT OF REACH OF CHILDREN