Ingredient GlossaryGood for you. Good for your skin. Discover more about these powerhouse ingredients behind the Estée Lauder formulas you love. What they do, how they work and where they’re from.Filter By: ALL A-C D-G H-M N-R S-Z Discover Ingredient Glossary Tuber Melanosporum Extract Tuber Melanosporum ExtractAlso known as the highly-coveted Black Diamond Truffle, our exclusive, potent energy-infusing extract that helps stimulate skin's visible vitality. Naturally Derived* Featured In Quick Shop Re-NutrivUltimate Diamond Transformative Energy Eye Creme Luxury for eyes, with Black Diamond Truffle Extract. CA $372.00 NEW! Quick Shop Re-NutrivUltimate Diamond Transformative Eye Serum Eyes look transformed at key facets. More sculpted. Brighter. CA $252.00 NEW! Quick Shop Re-NutrivUltimate Diamond Transformative Energy Moisturizer Creme Rich Decadently rich, deeply nourishing, exquisitely comforting. CA $445.00*Per ISO Standard 16128. From plant sources, non-petroleum mineral sources, and/or water.