VITAMIN C FIX CONCENTRATE EXTREME 15% Same texture, same price, same scent, but with an upgraded next-gen formula. Now powered by a 15% vitamin C complex with three stabilised forms of vitamin C, this lightweight formula will help protect skin from environmental aggressors like UV rays and pollution, visibly brighten and even skin tone. WHAT'S CHANGED? The new vitamin C complex contains a synergistic, potent blend of three stabilised forms of vitamin C, each with individual benefits. It is supported by other key ingredients such as ferulic acid to boost the effectiveness of the vitamin C, along with allantoin and niacinamide to replenish the skin barrier. WHY USE A COMPLEX? Vitamin C's pure form, ascorbic acid, is known to be unstable and highly susceptible to oxidation (resulting in it turning brown) via heat, light, air and water, which impacts its effectiveness. Using more stable derivatives of vitamin C in our formula ensures that rate of oxidation is slowed right down, meaning less discolouration and a longer shelf life, so your skin can get all the amazing benefits of vitamin C for longer. STAY-C© 50, a stable form of vitamin C known to convert into its skin-friendly form on contact with the skin L-VCG, a stable form of vitamin c that slowly releases to brighten the look of skin throughout the day/night SpecWhite VCE, a stable form of vitamin C that penetrates the skin more easily HOW TO USE Apply directly to cleansed skin before the Vitamin C Fix Hybrid Gel Cream, morning and evening. For best results, store in the fridge to keep your vitamin C at its optimum stability.HOW TO USE - Apply directly to cleansed skin before the Vitamin C Fix Hybrid Gel Cream, morning and evening. For best results, store in the fridge to keep your vitamin C at its optimum stability. WHY USE A COMPLEX? - Vitamin C's pure form, ascorbic acid, is known to be unstable and highly susceptible to oxidation (resulting in it turning brown) via heat, light, air and water, which impacts its effectiveness. Using more stable derivatives of vitamin C in our formula ensures that rate of oxidation is slowed right down, meaning less discolouration and a longer shelf life, so your skin can get all the amazing benefits of vitamin C for longer. NEW FORMULA - The new vitamin C complex contains a synergistic, potent blend of three stabilised forms of vitamin C, each with individual benefits. It is supported by other key ingredients such as ferulic acid to boost the effectiveness of the vitamin C, along with allantoin and niacinamide to replenish the skin barrier. VITAMIN C CONCENTRATE 15% - Same texture, same price, same scent, but with an upgraded next-gen formula. Now powered by a 15% vitamin C complex with three stabilised forms of vitamin C, this lightweight formula will help protect skin from environmental aggressors like UV rays and pollution, visibly brighten and even skin tone.Best Sellers Rank: See Top 100 in Beauty & Personal Care. Country of Origin: United Kingdom. : B0BV75YTBH. Manufacturer: Nip+Fab. Package Dimensions: 6.73 x 3.98 x 1.89 inches; 3.6 Ounces.