Methods and devices are provided for containing and separately dispensing a sunscreen and a UV indicator for use with the sunscreen to indicate effectiveness thereof. A flexible tube or container defines a primary chamber containing sunscreen therein and has a double flip-top cap mounted thereon. The double flip-top cap comprises a base mounted to the flexible tube and via which the sunscreen is dispensed. A middle section of the cap is hinged to the base and provides access to the primary chamber. A top section of the cap is hinged to the middle section. The middle section and top section cooperate to define a secondary chamber containing the UV indicator, with the top section providing access to the secondary chamber. The secondary chamber can contain a pre-inked stamp, or a stamp and ink pad impregnated with the UV indicator. The UV indicator is applied to one or more small regions of the skin under the sunscreen, and changes color to indicate effectiveness of the sunscreen.