While cocoa butter has been marketed as a home remedy to clear up dark spots, skin blemishes and stretch marks, the current medical community agrees that it will not actually treat any of these conditions. Cocoa butter is, however, an excellent moisturizer and can soothe irritated, dry and cracked skin.
Cocoa butter is a type of fat extracted from cocoa beans. It is most commonly used to make chocolate creamy and smooth, but it is also used in many lotions, creams and pharmaceuticals. Cocoa butter is solid at room temperature but has a very low melting point. This means that, when added to chocolate, it will maintain its shape while packaged but will literally melt in the mouth of the person who is eating it. Similarly, when put into creams and lotions, the butter will melt when it comes into contact with the skin.
Cocoa butter has a pleasant aroma and is often sold as a moisturizer and ointment to help with stretch marks and skin blemishes. While there has never been any clinical proof to confirm the idea that cocoa butter helps with skin discoloration, it will help with dry skin that may be present around skin blemishes and stretch marks.