Trilogy Very Gentle Calming Serum 30ml Very gentle calming serum from Trilogy is an exceptionally gentle and calming solution designed for intolerant, easily irritated skin in need of peace, comfort and soothing hydration. Combines natural spring water and calming extracts of Chamomile and Calendula with moisture-repairing plant oils to help calm your complexion and protect the weakened skin barrier of sensitive skin. Use alone as a light moisturiser or before Very Gentle Moisturising Cream for added comfort.