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GC-MSM 3550

product on market Capsule Progressive Professional from Progressive Laboratories Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 36% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This formula contains antioxidants like Vitamin C and E, alongside essential minerals and pantothenic acid that support cellular function. There is strong evidence for the role of these nutrients in maintaining immune health and metabolic processes. However, the overall evidence coverage for this specific combination is limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for GC-MSM 3550
Open Full PDF View on NIH DSLD →
Details

Label Data

4 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
36%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
100 mg (167% DV)
50 IU (167% DV)
2.2× RDA — within safe limits 179 studies (A:3, B:90)
100 mg (1000% DV)
20.0× RDA — above typical dose 2 studies — no high-quality reviews
2 mg (100% DV)
Within RDA (0.9× RDA) 9 studies — no high-quality reviews
75 mcg (100% DV)
1.7× RDA — within safe limits 3 studies — no high-quality reviews
Methyl Sulfonyl Methane
1700 mg
Market median: 1000.0mg (1115 products) 24 studies (A:0, B:9)
Market median: 600.0mg (79 products) 25 studies (A:0, B:6)
Market median: 1000.0mg (1115 products) 24 studies (A:0, B:9)
L-Cysteine
100 mg
Green Shell Mussel
50 mg
Market median: 100.0mg (173 products)
Market median: 600.0mg (7 products) 39 studies (A:2, B:13)
L-Glutathione
4 mg

Other Ingredients

Gelatin Vegetable Lubricant
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Directions: Four capsules daily, or more, as directed by a health care professional.

Warnings & Precautions

Pregnant and/or lactating women should consult their physician prior to use.

Tamper evident band around cap and seal on bottle. Do not use if either seal is broken or missing.

Keep out of the reach of children.

Contains: Crustacean shellfish (crab and shrimp).

Formulation Notes

Progressive Laboratories manufactured this product in its 3rd party GMP-inspected facility. (Good Manufacturing Practices)

Glucosamine, Chondroitin Sulfate, MSM and Hyaluronic Acid

Additional Information

Sold only for dispensing by a licensed health professional.

GMP Good Manufacturing Practice Certified GMP Compliant 21 CFR 111

Metadata

Product Details

UPC / SKU3 51821 00762 5
DSLD Entry Date2022-02-23
Product TypeOther Combinations
FormCapsule
BrandProgressive Professional from Progressive Laboratories
DSLD ID261763
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.