{"title":"Vitamin C","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BreadcrumbList\",\n  \"itemListElement\": [\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 1,\n      \"name\": \"Home\",\n      \"item\": \"https:\/\/plenthera.com\/\"\n    },\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 2,\n      \"name\": \"Vitamins\",\n      \"item\": \"https:\/\/plenthera.com\/collections\/vitamines\"\n    },\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 3,\n      \"name\": \"Vitamin C\",\n      \"item\": \"https:\/\/plenthera.com\/collections\/vitamine-c\"\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"CollectionPage\",\n  \"name\": \"Vitamin C at Plenthera\",\n  \"description\": \"Vitamin C from acerola and lemon, buffered Ester-C and combinations with collagen, iron or astaxanthin.\",\n  \"url\": \"https:\/\/plenthera.com\/collections\/vitamine-c\",\n  \"inLanguage\": \"en\",\n  \"isPartOf\": {\n    \"@type\": \"WebSite\",\n    \"name\": \"Plenthera\",\n    \"url\": \"https:\/\/plenthera.com\/\"\n  },\n  \"about\": {\n    \"@type\": \"Thing\",\n    \"name\": \"Vitamin C\",\n    \"alternateName\": [\n      \"Ascorbic acid\",\n      \"Ascorbate\"\n    ]\n  }\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How much vitamin C do I need per day?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The reference intake (RI) on labels is 80 mg per day. EFSA has not set a safe upper limit; supplementation up to about 1 gram per day is considered unproblematic. At higher doses, stomach and intestinal complaints may occur.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is buffered vitamin C?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Vitamin C bound to a mineral, such as calcium ascorbate. It is less acidic than ascorbic acid and therefore often gentler on a sensitive stomach. Ester-C from Vitals is a buffered form.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is vitamin C from acerola better than synthetic?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The vitamin C molecule is the same. Acerola additionally provides substances from the fruit itself, such as bioflavonoids. Synthetic vitamin C gives more vitamin C per gram. It is mainly a matter of preference.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does vitamin C help against colds?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Research shows no reduction in how often colds occur for most people. With daily use, the duration of a cold appears slightly shorter in studies. Vitamin C contributes to the normal function of the immune system.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why vitamin C with collagen?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Vitamin C contributes to normal collagen formation for the normal function of skin. That is why vitamin C is included in our Plent Beauty collagen products.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"When is the best time to take vitamin C?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The timing is up to you. With a sensitive stomach, take vitamin C with a meal. If you take it for iron absorption, combine it with an iron-rich meal or your iron supplement.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003carticle\u003e\n\u003cp\u003e\u003cem\u003eWritten by the Plenthera team (trained in orthomolecular nutrition). Scientifically reviewed in October 2026. Last updated: 6 October 2026.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eVitamin C is one of the best-researched vitamins and has a broad range of authorised health claims, from the immune system to collagen formation. The body cannot produce vitamin C itself, so you depend on food or a supplement. At Plenthera you will find the plant-based Vitamine C-Complex from Plantforce (from acerola and lemon), Ester-C from Vitals as a buffered form and products in which vitamin C is combined with collagen, iron or astaxanthin.\u003c\/p\u003e\n\u003cnav aria-label=\"Table of contents\"\u003e\n\u003ch2\u003eTable of contents\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003ca href=\"#vergelijking\"\u003eWhich vitamin C suits you?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#wat-is-vitamine-c\"\u003eWhat is vitamin C?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#efsa-claims\"\u003eVitamin C and EFSA – what is scientifically recognised?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#ascorbinezuur-gebufferd-of-liposomaal-wat-is-wat\"\u003eAscorbic acid, buffered, liposomal or from fruit – what is what?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#vormen\"\u003eVitamin C at Plenthera and other forms on the market\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#hoe-gebruik\"\u003eHow do you use vitamin C?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#mythes\"\u003eMyths and misconceptions about vitamin C\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#combineren\"\u003eCombining vitamin C with other supplements\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eFrequently asked questions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#bronnen\"\u003eSources\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/nav\u003e\n\u003csection\u003e\n\u003ch2 id=\"vergelijking\"\u003eWhich vitamin C suits you?\u003c\/h2\u003e\n\u003cp\u003eOverview of the common forms of vitamin C on the market. At Plenthera we currently stock vitamin C from fruit, buffered vitamin C and combination products.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003cth\u003eVitamin C per serving\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrom acerola and lemon (at Plenthera)\u003c\/td\u003e\n\u003ctd\u003e500 mg per teaspoon (Plantforce)\u003c\/td\u003e\n\u003ctd\u003ePlant-based, wholefood approach; powder for mixing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffered: calcium ascorbate (at Plenthera)\u003c\/td\u003e\n\u003ctd\u003e790 mg per tablet (Ester-C)\u003c\/td\u003e\n\u003ctd\u003eSensitive stomach, with citrus bioflavonoids\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIn combination (at Plenthera)\u003c\/td\u003e\n\u003ctd\u003e30–200 mg\u003c\/td\u003e\n\u003ctd\u003eCollagen, iron or astaxanthin with vitamin C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAscorbic acid\u003c\/td\u003e\n\u003ctd\u003e500–1,000 mg\u003c\/td\u003e\n\u003ctd\u003eLots of vitamin C per gram, good value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLiposomal\u003c\/td\u003e\n\u003ctd\u003e500–1,000 mg\u003c\/td\u003e\n\u003ctd\u003eLiquid or gel form with phospholipids\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"wat-is-vitamine-c\"\u003eWhat is vitamin C?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eVitamin C (ascorbic acid) is a water-soluble vitamin that humans cannot produce themselves. It acts as an antioxidant and is needed for collagen formation, the immune system and the absorption of iron from plant foods, among other things.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMost mammals produce vitamin C themselves in the liver. Humans, other primates and guinea pigs lack the enzyme to do so and therefore depend on their diet. A severe deficiency leads to scurvy, the disease that used to affect sailors on long voyages without fresh fruit and vegetables.\u003c\/p\u003e\n\u003cp\u003eGood sources are peppers, broccoli, Brussels sprouts, kiwi, citrus fruits, strawberries and blackcurrants. Tropical fruits such as acerola and camu camu contain exceptionally high amounts of vitamin C and are therefore used for natural vitamin C supplements. Vitamin C is sensitive to heat, light and oxygen; some is lost during cooking and storage.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"efsa-claims\"\u003eVitamin C and EFSA – what is scientifically recognised?\u003c\/h2\u003e\n\u003cp\u003eFor vitamin C, the following health claims, among others, are authorised (Regulation (EU) 432\/2012):\u003c\/p\u003e\n\u003cblockquote\u003e\u003cem\u003e\u003cstrong\u003e\"Vitamin C contributes to the normal function of the immune system.\"\u003c\/strong\u003e\u003c\/em\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\n\u003cem\u003e\u003cstrong\u003e\"Vitamin C contributes to normal collagen formation for the normal function of the skin.\"\u003c\/strong\u003e\u003c\/em\u003e (also: of bones, cartilage, gums, teeth and blood vessels)\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003cem\u003e\u003cstrong\u003e\"Vitamin C contributes to normal energy-yielding metabolism.\"\u003c\/strong\u003e\u003c\/em\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003cem\u003e\u003cstrong\u003e\"Vitamin C contributes to the reduction of tiredness and fatigue.\"\u003c\/strong\u003e\u003c\/em\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003cem\u003e\u003cstrong\u003e\"Vitamin C contributes to the protection of cells from oxidative stress.\"\u003c\/strong\u003e\u003c\/em\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003cem\u003e\u003cstrong\u003e\"Vitamin C increases iron absorption.\"\u003c\/strong\u003e\u003c\/em\u003e\u003c\/blockquote\u003e\n\u003cp\u003eThese claims apply to products that provide at least 15% of the reference intake per daily serving, i.e. at least 12 mg vitamin C. This applies to all products in this category. For athletes, the following also applies: \u003cem\u003e\u003cstrong\u003e\"Vitamin C contributes to maintain the normal function of the immune system during and after intense physical exercise\"\u003c\/strong\u003e\u003c\/em\u003e – with a daily intake of 200 mg in addition to the recommended daily intake. The Plantforce Vitamine C-Complex, Ester-C and IJzer Ferrochel with vitamin C reach that threshold.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"ascorbinezuur-gebufferd-of-liposomaal-wat-is-wat\"\u003eAscorbic acid, buffered, liposomal or from fruit – what is what?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAscorbic acid:\u003c\/strong\u003e the pure, acidic form. Good value and well researched; at higher doses the acid can irritate a sensitive stomach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuffered (ascorbates):\u003c\/strong\u003e vitamin C bound to a mineral, such as calcium, sodium or magnesium ascorbate. Less acidic and therefore often gentler on the stomach. Ester-C is calcium ascorbate with vitamin C metabolites.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLiposomal:\u003c\/strong\u003e vitamin C wrapped in phospholipids. Some studies find higher blood levels than with regular vitamin C, others do not; a consistent advantage has not been demonstrated.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrom fruit:\u003c\/strong\u003e vitamin C from, for example, acerola, together with substances from the fruit itself, such as bioflavonoids. Less vitamin C per gram than pure ascorbic acid, but chosen by those who prefer a wholefood approach.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"vormen\"\u003eVitamin C at Plenthera and other forms on the market\u003c\/h2\u003e\n\u003ch3\u003eVitamin C from acerola and lemon – at Plenthera\u003c\/h3\u003e\n\u003cp\u003eThe Vegan Vitamine C-Complex from the Danish brand Plantforce is an organic powder of acerola and lemon: one teaspoon (2.5 g) provides 500 mg vitamin C. Available in 100 g and 200 g (40 and 80 daily doses). You mix it into water, juice or a smoothie. You can read more about the fruit under \u003ca href=\"\/en-si\/collections\/acerola\"\u003eacerola\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eBuffered vitamin C – at Plenthera\u003c\/h3\u003e\n\u003cp\u003eEster-C 1000 mg from Vitals (90 tablets) contains calcium ascorbate with vitamin C metabolites: 790 mg vitamin C per tablet, supplemented with 100 mg citrus bioflavonoids.\u003c\/p\u003e\n\u003ch3\u003eVitamin C in combination – at Plenthera\u003c\/h3\u003e\n\u003cp\u003eIJzer 25 mg Ferrochel from Vitals contains 200 mg vitamin C per capsule; vitamin C increases iron absorption (see \u003ca href=\"\/en-si\/collections\/ijzer\"\u003eiron\u003c\/a\u003e). Astamax from Vitals combines 6 mg astaxanthin with 75 mg vitamin C and 12 mg vitamin E. Our Plent Beauty \u003ca href=\"\/en-si\/collections\/collageen\"\u003ecollagen products\u003c\/a\u003e contain vitamin C from acerola: 160 mg per scoop in Pure Marine Collageen Tropical Pineapple and 80 mg per sachet in the Beauty Blend. Collagen Type 1 \u0026amp; 3 with vitamin C from Doctor’s Best (30 mg per 3 tablets) is available while stocks last. Vitamin C is also found in many \u003ca href=\"\/en-si\/collections\/multi-vitamines\"\u003emultivitamins\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eOther forms on the market\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePure ascorbic acid\u003c\/strong\u003e (powder or capsules), \u003cstrong\u003esodium or magnesium ascorbate\u003c\/strong\u003e and \u003cstrong\u003eliposomal vitamin C\u003c\/strong\u003e. We do not currently stock these.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"hoe-gebruik\"\u003eHow do you use vitamin C?\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eFollow the dosage on the label.\u003c\/li\u003e\n\u003cli\u003eThe timing is up to you; with a sensitive stomach, take vitamin C with a meal or choose a buffered form.\u003c\/li\u003e\n\u003cli\u003eWant to improve iron absorption from plant foods? Then take vitamin C with an iron-rich meal.\u003c\/li\u003e\n\u003cli\u003eDo you use several products with vitamin C? Add up the amounts; supplementation up to about 1 gram per day is considered unproblematic.\u003c\/li\u003e\n\u003cli\u003eHave you had kidney stones or do you have a kidney condition, or do you have haemochromatosis? Then consult your doctor first.\u003c\/li\u003e\n\u003cli\u003eStore powders dry, cool and tightly closed.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"mythes\"\u003eMyths and misconceptions about vitamin C\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMyth 1: \"The more vitamin C, the better.\"\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIncorrect. Above an intake of about 200 mg per day, the blood becomes saturated in most people and the body excretes the excess via the urine. Very high doses can cause stomach and intestinal complaints.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMyth 2: \"Vitamin C prevents colds.\"\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eNot demonstrated for most people. In studies, daily use does appear to shorten the duration of a cold slightly. Vitamin C contributes to the normal function of the immune system.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMyth 3: \"Natural vitamin C is always better than synthetic.\"\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe molecule is the same. The difference lies in what else it contains: fruit powders also provide bioflavonoids and other plant substances, synthetic vitamin C provides more vitamin C per gram.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMyth 4: \"Liposomal vitamin C works many times better.\"\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eNot consistently demonstrated. Some studies find higher blood levels, others no difference.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"combineren\"\u003eCombining vitamin C with other supplements\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-si\/collections\/collageen\"\u003eCollagen\u003c\/a\u003e: vitamin C contributes to normal collagen formation for the normal function of skin.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-si\/collections\/ijzer\"\u003eIron\u003c\/a\u003e: vitamin C increases iron absorption, especially relevant with a plant-based diet.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-si\/collections\/vitamine-e\"\u003eVitamin E\u003c\/a\u003e: like vitamin C, vitamin E contributes to the protection of cells from oxidative stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-si\/collections\/zinc-zinkoxide\"\u003eZinc\u003c\/a\u003e: zinc also contributes to the normal function of the immune system.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-si\/collections\/vitamine-d\"\u003eVitamin D\u003c\/a\u003e: vitamin D also contributes to the normal function of the immune system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow much vitamin C do I need per day?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe reference intake (RI) on labels is 80 mg per day. EFSA has not set a safe upper limit; supplementation up to about 1 gram per day is considered unproblematic. At higher doses, stomach and intestinal complaints may occur.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is buffered vitamin C?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eVitamin C bound to a mineral, such as calcium ascorbate. It is less acidic than ascorbic acid and therefore often gentler on a sensitive stomach. Ester-C from Vitals is a buffered form.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs vitamin C from acerola better than synthetic?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe vitamin C molecule is the same. Acerola additionally provides substances from the fruit itself, such as bioflavonoids. Synthetic vitamin C gives more vitamin C per gram. It is mainly a matter of preference.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes vitamin C help against colds?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eResearch shows no reduction in how often colds occur for most people. With daily use, the duration of a cold appears slightly shorter in studies. Vitamin C contributes to the normal function of the immune system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy vitamin C with collagen?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eVitamin C contributes to normal collagen formation for the normal function of skin. That is why vitamin C is included in our Plent Beauty collagen products.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen is the best time to take vitamin C?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe timing is up to you. With a sensitive stomach, take vitamin C with a meal. If you take it for iron absorption, combine it with an iron-rich meal or your iron supplement.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"bronnen\"\u003eSources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/eur-lex.europa.eu\/legal-content\/NL\/TXT\/?uri=CELEX:02012R0432-20210517\" target=\"_blank\"\u003eRegulation (EU) 432\/2012\u003c\/a\u003e – list of permitted health claims.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/www.efsa.europa.eu\/en\/efsajournal\/pub\/3418\" target=\"_blank\"\u003eEFSA NDA Panel (2013)\u003c\/a\u003e – Scientific Opinion on Dietary Reference Values for vitamin C. EFSA Journal 11(11):3418.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/23440782\/\" target=\"_blank\"\u003eHemilä H \u0026amp; Chalker E\u003c\/a\u003e (2013). Vitamin C for preventing and treating the common cold. Cochrane Database Syst Rev (1):CD000980.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC4915787\/\" target=\"_blank\"\u003eDavis JL et al.\u003c\/a\u003e (2016). Liposomal-encapsulated ascorbic acid: influence on vitamin C bioavailability and capacity to protect against ischemia–reperfusion injury. Nutr Metab Insights 9:25–30.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/8623000\/\" target=\"_blank\"\u003eLevine M et al.\u003c\/a\u003e (1996). Vitamin C pharmacokinetics in healthy volunteers: evidence for a recommended dietary allowance. Proc Natl Acad Sci USA 93(8):3704–3709.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eDisclaimer:\u003c\/strong\u003e This text is for informational purposes only and does not replace medical advice. Vitamin C is a food supplement, not a medicine. If in doubt or if you take medication, we recommend consulting a doctor or orthomolecular therapist first.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/article\u003e","products":[{"product_id":"vitals-ester-c-1000mg-90-tabs","title":"Ester-C 1000 mg – 90 tablets","description":"\u003cp\u003eVitals Ester-C® 1000 mg contains 90 tablets, each with 1000 mg calcium ascorbate with vitamin C metabolites, of which 790 mg vitamin C. The product is supplemented with 100 mg citrus bioflavonoid complex. Ester-C® is a patented, non-acidic vitamin C formula. The recommended dose is 1 tablet a day. One jar contains 90 tablets, enough for 90 days. 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