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Yeast-Aid

product on market Capsule Kirkman Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This formula contains Vitamin C, Biotin, and Selenium, which support immune function and metabolic processes with strong evidence. Olive leaf and Pau d'Arco extracts are included for their potential antimicrobial properties, though research evidence for these specific botanical ingredients is more limited. The profile maintains a high safety score.

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

Label

Product Label

Label for Yeast-Aid
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
50
Servings
Botanical with Nutrients
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
500 mg (833% DV)
900 mcg (300% DV)
30.0× RDA — above typical dose 27 studies (A:0, B:11)
70 mcg (100% DV)
1.3× RDA — within safe limits 173 studies (A:0, B:67)
Market median: 500.0mg (115 products)
Pau d'Arco extract
200 mg
Market median: 500.0mg (234 products) 95 studies (A:0, B:35)
Caprylic Acid
100 mg
Cranberry Extract
25 mg
Oregano
100 mg

Other Ingredients

Vitamin C Calcium Caprylate Olive leaf extract Pau d'Arco extract Goldenseal extract Oregano Di-Calcium Phosphate Crospovidone Cranberry Extract Microcrystalline Cellulose Silicon Dioxide Biotin Plant Cellulose Capsule
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

SUGGESTED USE: 2-4 capsules daily or as directed by a physician.

Warnings & Precautions

CAUTION: DO NOT USE IN PREGNANCY OR WHILE LACTATING.

KEEP OUT OF THE REACH OF CHILDREN.

Formulation Notes

CASEIN & GLUTEN FREE

HYPOALLERGENIC

FREE OF: Sugar, starch, soy, wheat, casein, gluten, milk, preservatives, yeast, gelatin, flavorings, colorings, peanuts, tree nuts or fish.

Additional Information

IMPORTANT: STORE IN A COOL DRY PLACE AND TIGHTLY CAPPED.

(503)694-1600

Best Used by: May 2013

058/200

Country of Origin USA

Metadata

Product Details

DSLD Entry Date2013-09-25
Product TypeBotanical with Nutrients
FormCapsule
BrandKirkman
DSLD ID25460
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.