Pure Encapsulations Sereniten Plus - Moderates the effects of occasional stress and supports restful sleep. Helps temporarily reduce symptoms of mild mental and physical stress with a blend of Lactium^®, L-theanine and vitamin D. Clinically studied milk-based peptide Lactium^® promotes relaxation, positive mood and other stress-related effects, including healthy digestion, sleep, and cardiovascular and cognitive function. Helps maintain immune function during stress with vitamin D.