SPECIMEN #KIRKLAND
Verified
VITAMIN_CKirkland Signature
Vitamin C 1000mg
The Honda Civic of vitamin C. 500 tablets, USP Verified, under $15 at Costco. Less than 3 cents per day. No fancy delivery system, no Instagram marketing. Just reliable vitamin C that does the job for a year and a half.
8.0/10
EXCELLENTVitamin C at 1000mg as ascorbic acid. This is at the diminishing returns threshold (absorption drops above single doses of 200mg), but total daily intake of 1000mg is well-supported for immune function. Simple, effective, no-frills. Rose hips at 25mg is negligible but harmless.
2 ingredientsTablets500 servings
Evidence
7.0
Dosing
5.1
Synergy
6.0
What We Like
- 500 tablets = nearly 1.5 years supply.
- USP Verified quality.
- 1000mg is a solid daily dose.
- Pennies per serving.
Watch Out For
- Basic ascorbic acid (no enhanced absorption form).
- Rose hips at 25mg is negligible.
- Large tablet can be hard to swallow.
- No bioflavonoids for enhanced utilization.
What We Analyzed
Verified Supplement Facts
Every dose checked against clinical research
We analyzed the actual supplement facts panel for this product. Every ingredient dose below was cross-referenced with published clinical trials to determine if it matches what studies actually use.
2 ingredients analyzed1 at clinical doses1 underdosed
Source: Official product page
Ingredient Breakdown
1 clinical1 underdosed
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
Our Analysis
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