Researched Nutritionals Vitamin C with R-Lipoic Acid supplement bottle
Researched Nutritionals

Vitamin C with R-Lipoic Acid

What We Researched
2 active ingredients analyzed · 1 retailer compared · Last updated: Mar 2026
81
Product Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C 1500 mg
R-Lipoic Acid Pure R-Lipoic Acid
Bioavailability Very Good

Absorption Rating

  • Vitamin C Fair
  • R-Lipoic Acid Good
Other Ingredients Fair

Fillers & Additives

No inactive ingredient data available.

Efficacy Excellent

Dosage Analysis

  • Vitamin C 1500 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C 1500 mg
R-Lipoic Acid Pure R-Lipoic Acid

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
Researched Nutritionals

· 2 products

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Frequently Asked Questions
Is Researched Nutritionals Vitamin C with R-Lipoic Acid a good supplement?

Researched Nutritionals Vitamin C with R-Lipoic Acid received a product quality score of 81/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 2 active ingredients

What are the ingredients in Researched Nutritionals Vitamin C with R-Lipoic Acid?

Researched Nutritionals Vitamin C with R-Lipoic Acid contains 2 active ingredients: Vitamin C (1500 mg), R-Lipoic Acid (Pure R-Lipoic Acid). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Researched Nutritionals Vitamin C with R-Lipoic Acid safe to take?

Researched Nutritionals Vitamin C with R-Lipoic Acid 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.

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.