Doctor's Best Vegan Glucosamine Chondroitin MSM
vs
Doctor's Best Hydrolyzed Keratin
Supplement Comparison

  • Sodium: Doctor's Best Vegan Glucosamine Chondroitin MSM has 4.3× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 11 nutrients compared
Bar chart: per-serving label amounts and listed forms for Doctor's Best Vegan Glucosamine Chondroitin MSM vs Doctor's Best Hydrolyzed Keratin.

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Frequently asked questions

Which active ingredients does Doctor's Best Vegan Glucosamine Chondroitin MSM have?

  • Chloride
  • Sodium
  • Potassium
  • Methylsulfonylmethane (MSM) appears as OptiMSM Methylsulfonylmethane (MSM)
  • Glucosamine Sulfate appears as GreenGrown Glucosamine Hydrochloride Potassium Sulfate
  • Chondroitin Sulfate appears as Mythocondro Chondroitin Sulfate

Which active ingredients does Doctor's Best Hydrolyzed Keratin have?

  • Sodium
  • Keratin appears as KeraGLO Hydrolyzed Keratin

Which categories do Doctor's Best Vegan Glucosamine Chondroitin MSM and Doctor's Best Hydrolyzed Keratin belong to?

  • Joint Formula
  • Single Vitamin

What health concerns do Doctor's Best Vegan Glucosamine Chondroitin MSM and Doctor's Best Hydrolyzed Keratin address?

  • Joint & Bone Health
  • Skin, Hair & Nail Health

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Doctor's Best Vegan Glucosamine Chondroitin MSM: 4 capsules
    • Doctor's Best Hydrolyzed Keratin: 1 capsule
  • Chloride
    • This supplement has 180 mg
    • Adequate Intake in men: 2300 mg
    • Adequate Intake in women: 2300 mg
    • Tolerable Upper Intake Level: 3600 mg
  • Sodium
    • This supplement has 65 mg
    • Adequate Intake in men: 1500 mg
    • Adequate Intake in women: 1500 mg
    • Tolerable Upper Intake Level: Not established
  • Potassium
    • This supplement has 200 mg
    • Adequate Intake in men: 3400 mg
    • Adequate Intake in women: 2600 mg
    • Tolerable Upper Intake Level: Not established
  • Sodium
    • This supplement has 15 mg
    • Adequate Intake in men: 1500 mg
    • Adequate Intake in women: 1500 mg
    • Tolerable Upper Intake Level: Not established

Last updated: February 3, 2026

  • Sources & Methodology: Nutrient data and forms are taken directly from Supplement Facts labels. Reviewed and standardized by the VIOscan Research Team. Learn more on the Methodology page.
  • We show the Recommended Dietary Allowance (RDA) when available. If no RDA exists, we show the Adequate Intake (AI). Tolerable Upper Intake Levels (UL) are used for upper limits. Unless otherwise noted, RDAs shown correspond to healthy adults aged 19–50 years and are sex-specific. Separate values exist for 51–70 years and >70 years, and pregnancy and lactation are excluded. All values come from the Dietary Reference Intakes (DRIs) published by the National Academies of Sciences, Engineering, and Medicine (NASEM), Food and Nutrition Board (FNB).
  • Transparency: We’re funded by our users. We don’t have sponsors or affiliate links, and we don’t sell supplements.
  • Editorial standards: we provide independent, impartial and objective data analysis.
  • This analysis is for educational purposes only. It is not a substitute for medical advice.
  • Questions? Read our Frequently Asked Questions or contact us, we’re here to help.
  • See an error? Report it through our Contact page.
  • Author: VIOscan Research Team