Innate Response Formulas Vitamin C-400, 180 Tablets supplement bottle
Innate Response Formulas

Vitamin C-400, 180 Tablets

What We Researched
2 active ingredients analyzed · 6 inactive ingredients decoded · 4 brand certifications checked · 4 retailers compared · Last updated: Mar 2026
84
Product Score Good
74
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as ascorbic acid) 400 mg 444%
Food & Herb BlendOrganic orange, organic brown rice, organic cranberry, organic blueberry, organic broccoli head, organic parsley leaf, carrot, organic beetroot 575 mg **
Bioavailability Fair

Absorption Rating

  • Vitamin C (as ascorbic acid) Fair
  • Food & Herb BlendOrganic orange, organic brown rice, organic cranberry, organic blueberry, organic broccoli head, organic parsley leaf, carrot, organic beetroot Fair
Other Ingredients Excellent

Fillers & Additives

  • Rice Protein
  • Microcrystalline Cellulose
  • Autolyzed Yeast Extract
  • Silicon Dioxide
  • Stearic Acid
  • Hypromellose
Efficacy Very Good

Dosage Analysis

  • Vitamin C (as ascorbic acid) 400 mg Effective
  • Food & Herb BlendOrganic orange, organic brown rice, organic cranberry, organic blueberry, organic broccoli head, organic parsley leaf, carrot, organic beetroot 575 mg High

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as ascorbic acid) 400 mg 444%
Food & Herb BlendOrganic orange, organic brown rice, organic cranberry, organic blueberry, organic broccoli head, organic parsley leaf, carrot, organic beetroot 575 mg **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Rice Protein Safe

It is used as a filler or to increase the protein content.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Autolyzed Yeast Extract Generally_safe

It is used to enhance the flavor of supplements.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$87$84$81$79$76 Mar 12 $84.99$78.00
iHerb
Vitacost

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

Brand Trust Report
Innate Response Formulas

Founded 2003 · Manchester, New Hampshire, USA · 21 products · innateresponse.com

Certifications

4 certifications
B Corp Certified Verified Source
Gluten Free Gfco Verified Source
Non Gmo Project Verified Source
Vegan Certified Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
In House Testing — Verified Source

Violation History

1 incident
Lawsuit Misleadingly labeling the amount of nutrients in the products and the origin of the products.2019Source
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Frequently Asked Questions
Is Innate Response Formulas Vitamin C-400, 180 Tablets a good supplement?

Innate Response Formulas Vitamin C-400, 180 Tablets received a product quality score of 84/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 2 active ingredients with 180 servings per container. Of the 6 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, Innate Response Formulas, holds a brand trust score of 74/100 with 4 verified certifications including B Corp Certified, Gluten Free Gfco, Non Gmo Project, Vegan Certified.

What are the ingredients in Innate Response Formulas Vitamin C-400, 180 Tablets?

Innate Response Formulas Vitamin C-400, 180 Tablets contains 2 active ingredients: Vitamin C (as ascorbic acid) (400 mg), Food & Herb BlendOrganic orange, organic brown rice, organic cranberry, organic blueberry, organic broccoli head, organic parsley leaf, carrot, organic beetroot (575 mg). Notable high-dose ingredients include Vitamin C at 444% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Innate Response Formulas Vitamin C-400, 180 Tablets safe to take?

Innate Response Formulas Vitamin C-400, 180 Tablets 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 Innate Response Formulas a trustworthy supplement brand?

Innate Response Formulas receives a brand trust score of 74/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2003 and headquartered in Manchester, New Hampshire, USA, the company offers 21 products in their lineup. They hold 4 verified certifications including B Corp Certified, Gluten Free Gfco, Non Gmo Project, Vegan Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Innate Response Formulas has 1 historical regulatory incident 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.