Bluebonnet Buffered Vitamin C 500 mg supplement bottle
Bluebonnet

Buffered Vitamin C 500 mg

What We Researched
5 active ingredients analyzed · 5 inactive ingredients decoded · 4 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
75
Product Score Fair
84
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as Calcium Ascorbate) 500 mg 556%
Calcium (as Calcium Ascorbate) 56 mg 4%
Citrus Bioflavonoids Complex 250 mg
Hesperidin (as Flavones, Flavonols, Phenolic Compounds) 100 mg
Rutin 10 mg
Bioavailability Very Good

Absorption Rating

  • Vitamin C (as Calcium Ascorbate) Good
  • Calcium (as Calcium Ascorbate) Good
  • Citrus Bioflavonoids Complex Fair
  • Hesperidin (as Flavones, Flavonols, Phenolic Compounds) Good
  • Rutin Fair
Other Ingredients Excellent

Fillers & Additives

  • Hypromellose
  • Water
  • Purified
  • Cellulose
  • Magnesium Stearate
Efficacy Poor

Dosage Analysis

  • Vitamin C (as Calcium Ascorbate) 500 mg Effective
  • Calcium (as Calcium Ascorbate) 56 mg Under-dosed
  • Citrus Bioflavonoids Complex 250 mg Under-dosed
  • Hesperidin (as Flavones, Flavonols, Phenolic Compounds) 100 mg Under-dosed
  • Rutin 10 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as Calcium Ascorbate) 500 mg 556%
Calcium (as Calcium Ascorbate) 56 mg 4%
Citrus Bioflavonoids Complex 250 mg
Hesperidin (as Flavones, Flavonols, Phenolic Compounds) 100 mg
Rutin 10 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Water Safe

Dissolves and carries water-soluble ingredients.

Purified Unknown
Cellulose Safe

Provides bulk and structure in tablets and capsules.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Price Comparison

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Bluebonnet

Founded 1991 · Sugar Land, Texas, United States · 568 products · bluebonnetnutrition.com/

Certifications

4 certifications
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed Source
In House Testing — Verified Source

Violation History

3 incidents
Prop 65 Lead2016-08-29Source
Lawsuit Allegedly falsely promoting liquid vitamin B supplements as containing various amounts of B vitamins when they did not.2016Source
Lawsuit Allegedly falsely advertised a Betaine supplement as 'derived from beets' when it was claimed to be synthetic.2014Source
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Frequently Asked Questions
Is Bluebonnet Buffered Vitamin C 500 mg a good supplement?

Bluebonnet Buffered Vitamin C 500 mg received a product quality score of 75/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 5 active ingredients with 90 servings per container. Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Bluebonnet, holds a brand trust score of 84/100 with 4 verified certifications including Nsf Gmp, Fda Gmp Inspections, Non Gmo Project, Usda Organic.

What are the ingredients in Bluebonnet Buffered Vitamin C 500 mg?

Bluebonnet Buffered Vitamin C 500 mg contains 5 active ingredients: Vitamin C (as Calcium Ascorbate) (500 mg), Calcium (as Calcium Ascorbate) (56 mg), Citrus Bioflavonoids Complex (250 mg), Hesperidin (as Flavones, Flavonols, Phenolic Compounds) (100 mg), Rutin (10 mg). Notable high-dose ingredients include Vitamin C at 556% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Bluebonnet Buffered Vitamin C 500 mg safe to take?

Bluebonnet Buffered Vitamin C 500 mg has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Bluebonnet a trustworthy supplement brand?

Bluebonnet receives a brand trust score of 84/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1991 and headquartered in Sugar Land, Texas, United States, the company offers 568 products in their lineup. They hold 4 verified certifications including Nsf Gmp, Fda Gmp Inspections, Non Gmo Project, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Bluebonnet has 3 historical regulatory incidents on record, which are factored into the trust score.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.