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C 1000 mg Timed-Released Formula

Swanson
4.8
★ ★ ★ ★ ★
(375 ratings)
Vitamin C 1000 mg
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Score83

Strong vitamin C depth with timed-release convenience. The unbuffered form and narrow formula remain important limitations.

How scoring works
Quantity:250 Tablet(s) • (250 servings)
Goals:
General Health
Immunity
Skin Health
Vision Support

Score 83

Strong vitamin C depth with timed-release convenience. The unbuffered form and narrow formula remain important limitations.

How scoring works
$24.89($0.09 per serving)
iHerb
$ 24.89
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Analysis

The 1,000 mg serving offers substantial antioxidant, collagen, and immune support. Timed release may distribute the dose over a longer period than an ordinary tablet.

Standard ascorbic acid remains the main active, so the delivery feature does not remove acidity. The concentrated rose-hip extract is clearly separated but too small to broaden the formula much.

The large bottle makes ongoing use convenient for people specifically targeting vitamin C. It is incomplete for vision, skin barrier, or broad immune support because other relevant nutrients are absent.

Who is it for
  • Adults wanting a full-strength timed-release tablet
  • Users focused on vitamin C intake
  • People seeking a large serving supply
Best for
  • Extended vitamin C delivery
  • Antioxidant and collagen support
  • Single-nutrient supplementation

Pros

  • Full 1,000 mg amount
  • Timed-release format
  • Large number of servings
  • Clear separation of active ingredients

Cons

  • Unbuffered ascorbic acid
  • Small rose-hip addition
  • Narrow pathway coverage
  • No evidence supplied for release duration

Warnings

  • The high unbuffered amount may cause stomach upset or loose stools
  • Timed-release tablets should generally not be crushed or chewed
  • People prone to calcium oxalate kidney stones should consider total vitamin C intake

Nutrient quality

87 Highest impact

Timed release may extend delivery, though the active remains ordinary unbuffered ascorbic acid. The serving is below the adult upper limit, though the amount may bother sensitive stomachs.

Ingredient transparency

81 Highest impact

Each listed active ingredient has a specific amount. Complete excipient details and clear daily intake guidance are not supplied.

Customer satisfaction

72 High impact

The supplied aggregate satisfaction metrics are strong and based on meaningful volume. No feedback excerpts or complaint themes are supplied, so experience patterns cannot be verified.

Value for money

91 Highest impact

Serving value appears favorable for the disclosed dose. The focused ingredient profile avoids costly low-value extras.

Report analysis

Goals

General Health
Impact
Highest effect
A- Goal FitA- Strength of SupportC CoverageA- Formula Quality

Vitamin C at 1,000 mg supplies a full target-range antioxidant and collagen-support amount. Timed release may extend delivery, although the active remains ordinary unbuffered ascorbic acid.

The vitamin C amount is clearly separated from the small rose-hip extract. The focused formula offers strong dose depth, but people with sensitive stomachs may tolerate a buffered form better.

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Immunity
Impact
Highest effect
B+ Goal FitA- Strength of SupportC- CoverageA Formula Quality

Vitamin C directly supports immune-cell function, epithelial barriers, and antioxidant protection, although it covers only one main immune pathway. Vitamin C has strong established nutritional evidence, with the clearest benefit when intake is inadequate or demand is elevated.

The 1000 mg vitamin C serving reaches the configured immune-support range rather than providing a token amount. The full ascorbic acid amount is clearly separated from rose hips, while timed release may spread delivery over time.

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Skin Health
Impact
High effect
B- Goal FitA- Strength of SupportC- CoverageA- Formula Quality

Vitamin C directly supports collagen synthesis and antioxidant defense. Timed release adds a practical delivery feature for this focused formula.

The high amount provides strong pathway depth, though unbuffered ascorbic acid may not suit sensitive users. Rose hips are a small related addition, and no barrier or hydration active broadens coverage.

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Macular and Blue Light Defense
Vision Support
Impact
High effect
C- Goal FitB+ Strength of SupportD CoverageA- Formula Quality

Vitamin C provides useful antioxidant support for the lens and other ocular tissues. A single antioxidant cannot replace a broader vision formula built around macular carotenoids, zinc, or structural lipids.

The 1,000 mg amount is clearly disclosed and reaches a meaningful supplemental range. Timed release extends delivery, while the underlying ascorbic acid remains unbuffered and the small rose-hip extract adds little separate depth.

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Cellular Defense
Anti-Inflammatory Support
Impact
Moderate effect
D+ Goal FitB- Strength of SupportD- CoverageA Formula Quality

Vitamin C provides a substantial antioxidant dose with modest anti-inflammatory relevance. It remains a narrower approach than direct inflammation-modulating botanicals or omega-3s.

The amount and timed-release positioning support sustained antioxidant exposure. No second mechanism broadens the formula.

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Ingredients

IngredientAmount per serving
Vitamin C (Ascorbic Acid)
 1000 mg
Rose Hips 4:1 extract
25 mg
Adults 18–50
Report overview
Vitamin C (Ascorbic Acid) · 1000 mg OverallScore81
C Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value

A timed-release tablet delivers a full target-range amount, though the active form itself is ordinary ascorbic acid. The 1,000 mg serving falls within the preferred intake range. The vitamin C dose is clearly separated from the rose hip extract, while the product delivers exceptionally low cost per gram with timed release.

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