Palmer's Cocoa Butter Formula Tnmmy Butter for Stretch Marks Palmer's Cocoa Butter Formula Tummy Butter is widely recommended for stretch marks during and after pregnancy and weight loss. Bio C-Elaste is a powerful combination of Collagen, Elastin, Centella Asiatica, Sweet Almond Oil and Argan Oil. The addition of soothing Lavender makes Tummy Butter a relaxing nighttime treatment. Hypoallergenic - Paraben Free - Phthalate Free - Dermatologist Tested.