Typical use level 1-50%. Add the resin slowly at room temperature or heat to 70C (158F), but under agitation to avoid larger resin aggregates. Compatible solvents are: Isopropyl myristate, triglyceride, cyclomethicone, C12-15 alkyl benzoate, isododecane, isohexadecane. In Isododecane silicone resin dissolves the quickest (< 20 min), in cyclomethicone about 20-30min. Compatible also with sunscreen oil like OM-Cinnamate. Also firmness of a lipstick can be improved by adding Silicone Resin without impacting negatively the pay out and reducing the tendency to break from the mold. For external use only.