Antioxidants, a buzzword in skincare, nutrition, and health products, refer to the action of a specific ingredient to reduce free-radical damage (including collagen breakdown) caused by oxygen-containing substances including carbon monoxide, UV rays, pollution, and even common stress. The effects of free-radical damage include aging signs like wrinkles, dullness, sagging skin, and sunspots. Heavy-hitters loaded with antioxidants include Clinique All About Eyes Rich ($27.50, Clinique Counters and clinique.com) and Thibiant Beverly Hills New Radiance Optimum Synergy Cream ($350), which also adds Vitamins A, B, C, E, and Provitamin B5 to increase cell regeneration and renew the vibrance of dull, fatigued skin, and Thibiant Beverly Hills Cell Excel Optimizing Serum ($80, both at thibiantspa.com) a potent grape seed extract antioxidant-charged elixir which blurs fine lines, firms, and improves elasticity. Mrs. Aida Thibiant, skincare guru and owner of the eponymous Thibiant Beverly Hills Day Spa, suggests ampin up your antioxidant routine with a rejuvenating facial such as the Thibiant Beverly Hills New Radiance Facial (310.278.7565 for appointments) one to two days before the wedding to give skin a radiant glow without any redness.