It gnawed at Masterson so much that she and her team have spent the last three years re-formulating the brand's iconic, best-selling vitamin C serum. And thus, C-Firma Fresh was born. The new formula features the same ingredients and packaging that consumers already know and love, but with a new modality that keeps the formula effective for longer. This vegan multivitamin provides a spectrum of nutrients needed for women’s optimal health. It contains at least 100 percent of most essential nutrients including vitamins A, C, D, E, and K. We like that this multivitamin contains the most absorbable active forms, like vitamin D in the form of D3, and vitamin B12 in the form of methylcobalamin. Best Specialized Vitamin B: Jarrow Formulas Methyl B-12 Methylcobalamin Lozenges. Best Affordable Vitamin C: Nature's Bounty Vitamin C. Best Fish Oil: Pure Encapsulations O.N.E. Omega. Best Vegan Best vegan: Pure TheraPro Vegan A-D-K Full Spectrum Drops. Best keto-friendly: Why Not Natural Vitamin A Drops. Best gluten-free: Bluebonnet Nutrition Vitamin A. Best eco-friendly: Nature’s Way The best way to get the daily requirement of essential vitamins, including vitamin C, is to eat a balanced diet that contains a variety of foods. Smokers or those who are around secondhand smoke at any age should increase their daily amount of vitamin C by an additional 35 mg per day. The water-soluble vitamins, which include vitamin C and the B vitamins, are not likely to become toxic, because our bodies will excrete excess amounts. Fat-soluble vitamins, which include vitamins A, D, E, and K, can become toxic at high doses. Best antioxidant. “Thorne makes a high-quality supplement with 500 mg of vitamin C, plus 75 mg of flavonoids per capsule,” De Angelis says. Flavonoids are a plant-derived antioxidant, which have been linked to decreased inflammation (5). While vitamin C already has antioxidant and anti-inflammatory properties, flavonoids can enhance these It covers all the vitamins and minerals you should get, preferably from food. Kale is a good source of folic acid and calcium. (Photo credit: iStock / Getty Images) bsIyGJw.