Discover Lierac's unique anti-aging products with this trial-size kit. To help fight the appearance of skin slackening and restore the resilience of younger-looking skin, Lierac Laboratories developed a line of complementary and specific skin care products that work to boost the production of Type III Collagen (the collagen of younger-looking skin). The Anti-Aging Discovery Kit includes minis of the Cleansing Water, Cohérence Day and Night, as well as Cohérence Serum.