Doctor's Best Collagen Types 1 & 3 & Vitamin C, 240 Capsules supplement bottle
Doctor's Best

Collagen Types 1 & 3 & Vitamin C, 240 Capsules

What We Researched
4 active ingredients analyzed · 4 inactive ingredients decoded · 1 brand certification checked · 4 retailers compared · Last updated: Mar 2026
75
Product Score Fair
61
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Protein (from hydrolyzed collagen Types 1 and 3) 2 g
Vitamin C (as calcium ascorbate) 30 mg 33%
Hydrolyzed Collagen Types 1 and 3 (2000 mg) 2 g
Bioavailability Excellent

Absorption Rating

  • Protein (from hydrolyzed collagen Types 1 and 3) Good
  • Vitamin C (as calcium ascorbate) Good
  • Hydrolyzed Collagen Types 1 and 3 (2000 mg) Good
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Gelatin (Capsule)
  • Magnesium Stearate (Vegetable Source)
  • Silicon Dioxide
Efficacy Very Poor

Dosage Analysis

  • Protein (from hydrolyzed collagen Types 1 and 3) 2 g Under-dosed
  • Vitamin C (as calcium ascorbate) 30 mg Under-dosed
  • Hydrolyzed Collagen Types 1 and 3 (2000 mg) 2 g Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 5
Protein (from hydrolyzed collagen Types 1 and 3) 2 g
Vitamin C (as calcium ascorbate) 30 mg 33%
Hydrolyzed Collagen Types 1 and 3 (2000 mg) 2 g

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

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

Gelatin (Capsule) Safe

It is used as a material for making capsules.

Magnesium Stearate (Vegetable Source) Generally_safe

It is used to prevent ingredients from sticking to manufacturing equipment.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$22$21$20$19$18 Mar 12 $19.99$19.99
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
Doctor's Best

Founded 1990 · Tustin, California, USA · 186 products · doctorsbest.com

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source

Violation History

1 incident
Recall Red Yeast Rice2014-06-26Source
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Frequently Asked Questions
Is Doctor's Best Collagen Types 1 & 3 & Vitamin C, 240 Capsules a good supplement?

Doctor's Best Collagen Types 1 & 3 & Vitamin C, 240 Capsules received a product quality score of 75/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 4 active ingredients with 60 servings per container. Of the 4 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, Doctor's Best, holds a brand trust score of 61/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Doctor's Best Collagen Types 1 & 3 & Vitamin C, 240 Capsules?

Doctor's Best Collagen Types 1 & 3 & Vitamin C, 240 Capsules contains 4 active ingredients: Calories (5), Protein (from hydrolyzed collagen Types 1 and 3) (2 g), Vitamin C (as calcium ascorbate) (30 mg), Hydrolyzed Collagen Types 1 and 3 (2000 mg) (2 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Doctor's Best Collagen Types 1 & 3 & Vitamin C, 240 Capsules safe to take?

Doctor's Best Collagen Types 1 & 3 & Vitamin C, 240 Capsules 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 Doctor's Best a trustworthy supplement brand?

Doctor's Best receives a brand trust score of 61/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1990 and headquartered in Tustin, California, USA, the company offers 186 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Doctor's Best has 1 historical regulatory incident on record, which are factored into the trust score.

What is collagen?

Collagen is a topic many supplement consumers ask about. In the context of dietary supplements, understanding collagen helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

What is collagen good for?

Collagen Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding collagen good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

Do collagen tablets work?

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.

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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.