Armed with SPF-21, our Super Lysine+ ColdStick protects your lips from the sun, a common cold sore trigger. It also moisturizes dry lips for fast relief. Super Lysine+ ColdStick is an effective option. The SuperLysine+ ColdStick is a convenient for quick, soothing care throughout the day. The petroleum-free ColdStick formulation is a variation on our Super Lysine+ ointment including: L-Lysine – An essential amino acid that suppresses the activity of arginine. Calendula – Soothing botanical historically used to calm dry skin. Intensive Moisturizing Oils – Safflower, castor seed, jojoba, and vitamin E. Octinoxate & Oxybenzone – OTC sunscreen ingredients, which protect lips from the sun.