L-Lysine has been studied for its benefits in supporting lip health. Research shows L-Lysine, Zinc and Vitamin C help support skin and mucous membranes. Ultra Lysine Lips is a comprehensive formula intended to provide nutritive support for lip health. KAL Guarantees that NO ingredients other than those listed on this label have been added to this product. Clinical Lifestyles™ formulas are based on the observation and research of healthcare practitioners and scientists. ActivTab™ technology guarantees tablet disintegration within 30 minutes according to USP standards.