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QB-Zyme Pro

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
  • 29% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

This formula combines Vitamin C and magnesium with digestive enzymes like bromelain and papain. Research provides moderate evidence that these ingredients support immune function and protein digestion. 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 QB-Zyme Pro
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Vegetable Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
29%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
249 mg (415% DV)
20 mg (5% DV)
Market median: 500.0mg (1 products) 316 studies (A:8, B:159)
750 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
375 mg
Market median: 200.0mg (136 products) 3 studies — no high-quality reviews
Papain
225 mg
Pancreatin 10X
75 mg
75 mg
Market median: 500.0mg (19 products)

Other Ingredients

Hydroxypropyl Methylcellulose L-Leucine
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Directions: Take two or three vegetable capsules two to four times daily, in between meals if possible or as directed by a health care professional.

Warnings & Precautions

Sold only for dispensing by a licensed health professional.

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.

Quercetin is not recommended for pregnant women or nursing mothers. Patients taking prescription medications should consult their physician for possible interactions.

Formulation Notes

Formulated by Mitchell A. Fleisher , M.D, D.Ht, D.A.B.F.M., Dc.A.B.C.T. Progressive Laboratories manufactured this product in its 3rd party GMP-inspected facility. (Good Manufacturing Practices)

Quercetin-Bromelain

Acid resistant Delayed release capsule

Additional Information

GMP Good Manufacturing Practice Certified GMP Compliant 21 CFR 111

Metadata

Product Details

UPC / SKU3 51821 01029 8
DSLD Entry Date2022-06-16
Product TypeOther Combinations
FormCapsule
DSLD ID263148
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.