Natural Grocers by Vitamin Cottage Buffered C 500 mg supplement bottle
Natural Grocers by Vitamin Cottage

Buffered C 500 mg Review

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 5 brand certifications checked · Last updated: Aug 2026
100
Product Score Excellent
83
Brand Score Good

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as Potassium Ascorbate) 500 mg 556%
Bioavailability Excellent

Absorption Rating

  • Vitamin C (as Potassium Ascorbate) Good
Other Ingredients Excellent

Fillers & Additives

  • Cellulose
  • Microcrystalline Cellulose
  • Rice Bran
  • Water
  • Silica
Efficacy Excellent

Dosage Analysis

  • Vitamin C (as Potassium Ascorbate) 500 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as Potassium Ascorbate) 500 mg 556%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Microcrystalline Cellulose Safe

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

Rice Bran Safe

Natural filler and source of fiber.

Water Safe

Dissolves and carries water-soluble ingredients.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Brand Trust Report
Natural Grocers by Vitamin Cottage

Founded 1955 · Lakewood, CO, United States · 83 products · naturalgrocers.com

Certifications

5 certifications
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Nsf Gmp Verified Source
Usda Organic Verified Source
NSF Certified Verified

Transparency

2 claims
Third Party Testing Claim — Verified Source
Coa Availability — Claimed Source
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Frequently Asked Questions
Is Natural Grocers by Vitamin Cottage Buffered C 500 mg a good supplement?

Natural Grocers by Vitamin Cottage Buffered C 500 mg received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 90 servings per container. All 5 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Natural Grocers by Vitamin Cottage, holds a brand trust score of 83/100 with 5 verified certifications including Fda Gmp Inspections, Non Gmo Project, Nsf Gmp, Usda Organic.

What are the ingredients in Natural Grocers by Vitamin Cottage Buffered C 500 mg?

Natural Grocers by Vitamin Cottage Buffered C 500 mg contains 1 active ingredients: Vitamin C (as Potassium Ascorbate) (500 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 Natural Grocers by Vitamin Cottage Buffered C 500 mg safe to take?

Natural Grocers by Vitamin Cottage Buffered C 500 mg has been analyzed for ingredient safety across all its components. All 5 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Natural Grocers by Vitamin Cottage a trustworthy supplement brand?

Natural Grocers by Vitamin Cottage receives a brand trust score of 83/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1955 and headquartered in Lakewood, CO, United States, the company offers 83 products in their lineup. They hold 5 verified certifications including Fda Gmp Inspections, Non Gmo Project, Nsf Gmp, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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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 — read our methodology. 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.