Yes, all our products have been tested for safety. Our eyeliner has the same types of ingredients you might see in other liners or mascara. What makes our liner magnetic is our iron oxide ingredient. There are no heavy metals or parabens in our formula. Iron oxide is a cosmetic ingredient commonly used for pigment and is rated as non-toxic according to EWG’s skin deep profile. Of course, as with any eye cosmetic products, if you have any pre-existing eye conditions, consult your doctor. For a break down of all our ingredients, please visit our FAQ section.