Armed with SPF-21, our Super Lysine+® ColdStick protects your lips from the sun, a common cold sore trigger. It also soothes cracked or chapped lips for fast relief. Super Lysine+® ColdStick is an effective herbal nutrient option. The Super Lysine+® 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: Lysine – Well-researched amino acid that suppresses the activity of arginine, which is a common trigger Calendula – Soothing botanical historically used to calm irritated skin Immune-supporting Naturals – Goldenseal leaf, echinacea, tea tree oil, and propolis Intensive Moisturizing Oils – Safflower, castor seed, jojoba, and vitamin E Octinoxate & Oxybenzone – Trusted OTC sun screen ingredients, which may reduce cold sore aggravation triggered by sun exposure