Dermalogica Long-Lasting Hydration Kit. Kick-start skin’s hydration cycle: this trio of hydrating must-haves delivers lasting hydration for supple, resilient skin that lasts all day.. This kit helps to:. Replenish skin from within. Optimize moisturizer absorption. Provide 48 hours of continuous hydration. Kit Includes:. Multi Active Toner (50ml) - light facial toner. Circular Hydration Serum (10ml) - hyaluronic acid serum. Skin Smoothing Cream (15ml) - medium-weight moisturizer. Skin concerns:. Dryness and dehydration. Dull and lackluster skin