(PubMed) Ruhnau KJ, Meissner HP, Finn JR, et al
This one really does help wake up my skin and layers seamlessly with my toner, moisturizer, and sunscreen." Sarah Han, commerce editor More to know Types of vitamin C: L-ascorbic acid (percentage undisclosed), ~5% 3-O-ethyl ascorbic acid Other key ingredients: niacinamide, glutathione, vitamin E, panthenol, allantoin Fragrance-free: yes Best for Dark Spots: Goodal Green Tangerine Vita-C Dark Spot Care Serum Why it's worth it: Many well-made vitamin C serums still use droppers, but an airless pump like the one on Goodal's Green Tangerine Vita-C Dark Spot Care Seruma favorite of Kravebeauty founder, Liah Yoooffers a little extra reassurance
Helps prevent oxidative cell damage
These enzymes are essential for scavenging ROS and guarding cells against oxidative damage
Given intravenously, this treatment works by increasing Glutathione levels in the blood, which in turn results in Skin Brightening
Its best for short-term antioxidant defense, recovery after illness, or high oxidative load situations (like travel or intense training)