The MAC Pro Longwear Paint Pot is an eye primer and/or cream shadow that is long-wearing, blendable, and water-resistant. It can be worn alone or with other products and lasts for 24 hours. The product is non-caking, non-flaking, non-creasing, and provides stay-true color. It is also ophthalmologist-tested and dermatologist-tested. The formula is free of gluten, phthalate, paraben, vitamin A/retinyl palmitate, mineral oil, petrolatum, formaldehyde, and other potentially harmful ingredients. Some of the key ingredients include isododecane, calcium sodium borosilicate, dimethicone, polyethylene, and hydrogenated polyisobutene