The short version
- One quarter level teaspoon (1.1 g) per serving, about 206 servings in 227 g. Each serving is 1,100 mg of vitamin C as ascorbic acid, 1222% of the Daily Value, and the label lists no other ingredients.
- $9.18 for 8 oz on Sep 30, 2026: about $0.045 per labeled serving ($9.18 ÷ 206).
- The format trade-off is measuring and taste: you supply the spoon and the drink, and two servings (2,200 mg) already pass the 2,000 mg a day that MedlinePlus says is not recommended.
A week in the organizer
1 quarter-teaspoon per labeled serving · one jar ≈ 206 days at that serving
- MON
- TUE
- WED
- THU
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- SAT
- SUN
The label's suggested usage: "Mix 1/4 level teaspoon daily in juice or water." The label says "about 206" servings, so the day count is approximate. The strip draws that serving; it is not our suggestion to take it.
What the label shows
We read the Supplement Facts panel from the bottle images on the Amazon listing for the 8 oz (227 g) jar (ASIN B00028LX1U) on September 30, 2026, and the listing's text version of the same panel matched. Serving size: 1/4 level teaspoon (1.1 g). Servings per container: about 206.
| Nutrient | Per serving | % Daily Value | What to know |
|---|---|---|---|
| Vitamin C (ascorbic acid) | 1.1 g (1,100 mg) | 1222% | The whole 1.1 g serving is vitamin C. 1222% means the label uses a Daily Value of 90 mg. |
Other ingredients: None. The label says the product is not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients, and that it is produced in a GMP facility that processes other ingredients containing these allergens. The side panel adds that fine ascorbic acid dissolves more readily in liquids than regular crystalline ascorbic acid, that the product is "pharmaceutical grade", that "This product is sold by weight not volume", and to store it in a cool, dry place after opening. The back label notes that natural color variation may occur. The caution reads: for adults only; consult a physician if pregnant or nursing, taking medication, or managing a medical condition; keep out of reach of children.
The front panel says "Antioxidant Protection*", "Pure Powder" and "Pharmaceutical Grade", with Non-GMO, "Vegetarian/Vegan" and kosher marks. The asterisk points to the FDA disclaimer; it is the manufacturer's statement, not a result of ours.
What the format changes
You are the measuring device. Every other format on this site comes pre-dosed. Here the serving is a quarter of a level teaspoon, and the amount you get depends on your spoon and how level you keep it. A heaped quarter teaspoon can hold noticeably more than 1.1 g. Use a real measuring spoon and scrape it flat if you want the label's number. The label specifies a teaspoon measure; we could not confirm from the listing whether a scoop comes in the jar.
A lot of vitamin C in very little powder. Because the powder is pure ascorbic acid, 1.1 g of powder is 1,100 mg of vitamin C. A tablet or capsule with that much vitamin C would also need binders or a shell; the powder needs neither, which is why "Other ingredients: None" is possible. That also makes it easy to take a lot by accident: half a teaspoon is roughly 2,200 mg.
Taste and acidity. Ascorbic acid is, as the name says, an acid, so expect a sour taste. That is why the label pairs it with juice or water rather than suggesting you take it dry. There is no sweetener or flavor in the jar, so what the drink tastes like is up to you.
Moisture is the enemy of a powder. An opened jar of loose powder is exposed each time you open it. The label's storage line is short (cool, dry place after opening); in practice that means a dry spoon and a closed lid. Our storage guide covers humidity and bathroom cabinets.
Cheapest per serving on the site. At about 4.5 cents per labeled serving, powder is the least expensive way to buy a single vitamin here, alongside the Carlson D3 drops at about 4 cents per drop. Both formats trade convenience for price: you measure.
What the evidence says about the nutrient
MedlinePlus says vitamin C is needed for the growth and repair of tissues throughout the body. It is used to form collagen, a protein in skin, tendons, ligaments and blood vessels; to maintain cartilage, bones and teeth; and to aid the absorption of iron. It is also one of many antioxidants [2]. The body cannot make vitamin C and does not store it, so it has to come from the diet; all fruits and vegetables contain some, with citrus, kiwi, strawberries, peppers and broccoli among the richest sources [2].
MedlinePlus lists the adult RDA as 90 mg a day for men and 75 mg for women (more during pregnancy and breastfeeding, and an extra 35 mg a day for people who smoke). One serving of this powder is 1,100 mg, about 12 times the men's figure. On the high end, MedlinePlus says amounts greater than 2,000 mg a day are not recommended, because doses that high can cause stomach upset and diarrhea and, rarely, kidney stones; it also says large doses are not recommended during pregnancy [2]. Vitamin C is water-soluble; our fat-soluble vs. water-soluble guide explains what that means for storage in the body.
One labeled serving is 1,100 mg. Two quarter teaspoons, or one careless half teaspoon, is 2,200 mg, above the 2,000 mg a day MedlinePlus says is not recommended. The label says the product is for adults only; if you are pregnant, nursing, take medication or have a medical condition, ask a physician or pharmacist first.
Price and where it is sold
On September 30, 2026 the Amazon listing showed $9.18 for the 8 oz (227 g) jar, in stock, shipped and sold by Amazon.com. At about 206 servings that is roughly $0.045 per labeled serving ($9.18 ÷ 206). The listing marked the item non-returnable for food-safety reasons. Prices move; read this as a dated observation. See the listing on Amazon. As an Amazon Associate we earn from qualifying purchases.
Seals: the back label carries a "GMP Quality Assured" mark, and the listing describes Intertek GMP certification of NOW's manufacturing. That is a facility-level manufacturing audit, not a contents-testing seal such as USP Verified, so we list no testing seal.
Who should look elsewhere
- Anyone who wants a fixed dose without measuring: a tablet or capsule removes the spoon from the equation.
- Children: the label says adults only.
- Anyone who is pregnant, nursing, takes medication or has a medical condition should check with a physician or pharmacist first, as the label asks.
- People who find sour drinks unpleasant, or who get stomach upset from acidic foods, may not enjoy this format.
Sources
- Amazon.com. NOW Supplements, Vitamin C Crystals (Ascorbic Acid), 8 oz (ASIN B00028LX1U): listing text, directions and bottle images including the Supplement Facts panel and caution. Viewed Sep 30, 2026 (link in the price section). The manufacturer's site refused our automated request that day.
- MedlinePlus (U.S. National Library of Medicine). Vitamin C. Accessed Sep 30, 2026. link
This entry is educational and is not medical advice. Statements about dietary supplements have not been evaluated by the Food and Drug Administration. Ask a qualified clinician or pharmacist before starting any supplement, especially if you are pregnant, nursing, have an existing condition, or take medication.