The Bestsellers Trio revitalizes skin with dermatologist-approved formulas. Included are the Clinical Vit C + E + Ferulic Defend Serum to even tone and defend against dullness, and the No Needles Renew Serum to smooth and plump fine lines. Finally, the Tri Lipid Replenish Treatment restores essential ceramides, sterols, and fatty acids to help rebuild the skin barrier.