BLACK DIAMOND TRUFFLE EXTRACT: A SURGE OF ENERGYFrom Southwestern France comes one of nature’s rarest treasures: The Black Diamond Truffle. The power of each truffle is unlocked through a process commissioned by Re-Nutriv, brilliantly transforming them into the exclusive, skin-energizing Black Diamond Truffle Extract – nearly 10,000 hours in the making. In vitro testing by Estée Lauder Research showed it helped boost natural skin cell energy and it helped increase natural skin cell survival when exposed to intense stress from UV. This extraordinary extract helps skin stimulate its natural visible vitality.