Mustela Stretch Mark Oil 105ml. Mustela Stretchmark Prevention Oil. Mustelas certified Organic Stretch marks oil is formulated with 100% natural origin ingredients.. Its patented active ingredient is extracted from maracuja oil (passion fruit).. This oil can be used throughout pregnancy to improve skin elasticity and limit the appearance of stretchmarks.. Highly moisturizing, it increases skin elasticity and comfort.. Bottle with flip-top cap. 105ml