Oak Essentials Firming Plant Peptide Serum. Luxurious skincare for a radiant complexion. This powerful anti-aging serum is formulated with a breakthrough blend of botanical-based actives and plant stem cells to deliver visible plumping, firming, and lasting hydration. potent anti-aging serum with a blend of plant peptides that visibly firms, plumps, and delivers long-term moisturization. Botanical-based actives and plant stem cells provide an instant filler-like effect to smooth fine lines and wrinkles and help boost collagen for a youthful-looking complexion. 30 ml | 1 fl oz New in box