Roll-on Wax Applicator Refills are pre-filled, disposable wax applicators available in three different formulas and 3 different sizes. Just screw on the appropriate roller head and insert into the Waxing Spa. Sensitive Wax Formula clean+easy Sensitive Wax Formula features Chamomile and Azulene to soothe and calm the skin. Perfect for those clients who experience redness and irritation with waxing, this wax can be used for all facial and body hair removal procedures. Sensitive Wax formula is perfect for clients with sensitive skin. Works with full service starter kit and portable waxer.