St tropez self tan booster this self tan booster from st tropez is designed to keep your tan on the skin longer giving you a lasting sun kissed glow with the ability to prolong your natural or self tan for up to 3 days longer this booster lotion is created with a lightweight formula that deeply moisturises the skin whilst working to keep your tan directions of use massage into your skin from top to toe making sure you are well covered wait until touch dry before dressing avoid gettin