This Vaseline treatment can be used by anyone who is feeling the effects of dry lips. It should not be used if you have an allergic reaction to petrolatum jelly. If you are using any form of medication, then you should be fine to use this treatment though you should speak to a doctor before using this product. Vaseline Lip Therapy is now available to you in an iconic and covetable tin. The new and improved formula is clinically proven to help heal dry lips and provide long lasting moisturization. Containing the dry skin healing power of petroleum jelly, these non-sticky lip treatments are invitingly soft and melt on to lips to lock in moisture for a sensationally smooth and supple feel. What causes dry lips?