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- You earn loyalty credit for every order you place at iHerb!
- Loyalty credit is equal to 5% of the value of your order after discounts and credits applied, excluding shipping charges.
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The length of time for the expiration date or "best used before" date depends on the type of product, as well as the brand.
Perishable items (such as flax oils or certain probiotics) generally have shorter expiration dates. Although our warehouse is fully air-conditioned, these more fragile items are put in cold storage (freezer or refrigeration unit) for maximum freshness.
Our receiving department does its best to verify and then enter the correct expiration dates for all incoming products. However, discrepancies do occur from time to time. This being said, the exceptionally high turnover at iHerb ensures that our inventory is among the freshest in the industry.
Vitamin C (ascorbic acid) is one of the most well known nutrients worldwide. Such recognition is deserved, considering its role in nutritional biochemistry. Not only is vitamin C a key antioxidant, protecting cells throughout the body from free radical damage, this water-soluble vitamin serves as a cofactor in the synthesis of important neurotransmitters, such as dopamine and norepinephrine, and plays an integral role in the production of cellular energy. Vitamin C is essential for proper metabolism of carbohydrates and synthesis of fats and proteins. It helps break down cholesterol and also helps maintain healthy immune function. Vitamin C promotes wound healing because it is a cofactor for the synthesis of collagen and other connective tissue components.
The term ascorbic acid refers to vitamin C in its purest form, not bound to any other compound. Thorne's Vitamin C with Flavonoids contains ascorbic acid and citrus flavonoids (a mixture of naturally-occurring flavonoids, including rutin, hesperidin, and quercetin), and is 100 percent pure. Unlike many vitamin C supplements from other companies, Thorne's vitamin C supplements contain no corn starch. Although it is not true that ascorbic acid will not work in the body without flavonoids, vitamin C does work better when accompanied by flavonoid molecules, as their presence in cells spares vitamin C and provides greater antioxidant activity.
Vitamin C is an essential, water-soluble antioxidant for collagen stabilization. A deficiency can result in poor collagen cross-linkage and weaker connective tissue. Bioflavonoids have some of the same mechanisms of action, potentiating the effect of ascorbic acid.
In addition to immune support, connective tissue support, and its role in cellular energy production, antioxidant activity is one of the primary reasons for vitamin C supplementation. In addition to strong antioxidant activity, flavonoids support other key functions in the body. Factors dictating higher vitamin C include smoking, alcohol ingestion, stress, diabetes, pregnancy, environmental toxicity, and the use of certain drugs.
Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
Hypromellose (derived from cellulose) capsule, silicon dioxide.
Tamper Evident: Use only if bottle is sealed.
If pregnant, consult your health-care practitioner before using this product.
Store tightly sealed in a cool, dry place.
| Supplement Facts | ||
| Serving Size: One Capsule | ||
| Amount Per Serving | % DV | |
| Vitamin C (As Ascorbic Acid) | 500 mg | 833% |
| Citrus Bioflavonoids | 75 mg | * |
| *Daily Value (DV) not established. | ||
Verified Purchase
I've been using this vitamin c on my skin as a toner twice a day and noticed a dramatic improvement in my complexion. My skin looks brighter and feels tight. I used to buy skin care products at the store, but now I make my own using only natural ingredients. Simply open the capsule and mix the powder with some water and apply it to your skin with a cotton pad. Wait a few minutes before applying a moisturizer. It really does work and is much cheaper than buying products at the store. Also, you you don't have to worry about the unnecessary chemicals like parabens.
Posted by BlueMountaineer on Jun 27, 2017 | Verified Purchase
This product is quite pricey as are Thorne's other products. However, it has been great on my stomach, and my husbands. We take 2 in the morning and 2 in the evening without any problems. We need a lot of vitamin C for pyrolle disorder and undermethylation but many brands cause problems, expecially the powders. So would recommend this for anyone.
Posted by iHerb Customer on Jun 09, 2017 | Verified Purchase
Wij bestellen met regelmaat meerdere preparaten van Thorne Research. Geen onnodige vulstoffen of andere toevoegingen die niets met te maken hebben met de basis ingrediënten. De formules zijn vaak doordacht samengesteld. Wat mij betreft één van de fabrikanten die goed weten waar ze mee bezig zijn.
Posted by iHerb Customer on Jun 01, 2017 | Verified Purchase
Its my the routine supplement every morning with 600mg NAC. Keep my lung healthy as well as my hubby's who's a smoker.
Posted by hanafeng on Dec 01, 2016 | Verified Purchase
Composition of the most simple The best quality
Posted by iHerb Customer on Jun 08, 2016 | Verified Purchase
I have always chosen Thorne if I have a choice and it never fails. This is the brand recommended by my naturopath doctor. My only complaint is when the postman has it sitting in his truck in the summer with the heat and delivers a warm box. I then try to order my supplements in the winter months.
