An indulgent over-nighter with fast results, Estée Lauder’s Re-Nutriv Ultimate Diamond Transformative Eye serum is named after its hero ingredient: the black diamond truffle. The extract is sourced from a single master grower in southwest France and undergoes a fine milling and extraction process to preserve maximum potency, infusing the ultra-light formula with its skin-stimulant properties to encourage regeneration and boost radiance like never before.