The key ingredient in the Extra-Firming Phyto Serum is the Kangaroo Flower Extract, known for its potent firming properties. This extract helps to improve skin elasticity, restore the skin's natural bounce, and promote a more lifted and sculpted look. The serum also contains Mitracarpus extract, which helps to visibly reduce the appearance of fine lines and wrinkles, giving the skin a smoother and more refined texture.