Obsidian is a very dark, neutral shade. This foundation is designed to keep oily skin matte for hours without being overly drying. Coverage depends on heaviness of application.
Ingredients: Mica, Kaolin, Iron Oxides, Zinc Oxide, Titanium Dioxide, Allantoin, Magnesium Stearate.
There is no real sun protection in powder foundations from zinc oxide and/or titanium dioxide.