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Stress B-Complex Caps

product on market Capsule Twinlab Safety: 94/100
94/100

This product looks safe

  • Niacin: 70mg is 2.0× the Tolerable Upper Intake Level (35mg)
  • Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)
  • 75% of ingredients have research evidence
D Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

B-complex vitamins and vitamin C are supported by strong evidence for their roles in energy metabolism and neurological function. These nutrients assist in converting food into fuel and supporting the nervous system during periods of stress. Overall evidence coverage for this specific formulation is limited.

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

Alerts

Safety Alerts

Niacin: 70mg is 2.0× the Tolerable Upper Intake Level (35mg)

Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

Label for Stress B-Complex Caps
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
125
Servings
Other Combinations
Product Type
75%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
1000 mg (1111% DV)
50 mg (4167% DV)
41.7× RDA — above typical dose 76 studies (A:0, B:33)
50 mg (3846% DV)
38.5× RDA — above typical dose 13 studies (A:0, B:1)
70 mg NE (438% DV)
Exceeds UL by 2.0× (UL: 35 mg) 196 studies (A:5, B:63)
40 mg (2353% DV)
30.8× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
667 mcg DFE (167% DV)
Exceeds UL by 667.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
50 mcg (2083% DV)
20.8× RDA — above typical dose 139 studies (A:1, B:44)
100 mcg (333% DV)
3.3× RDA — above typical dose 27 studies (A:0, B:11)
36 mg (720% DV)
7.2× RDA — above typical dose 2 studies — no high-quality reviews
40 mg (7% DV)
Within RDA (0.1× RDA) 38 studies (A:1, B:7)
50 mg
Market median: 500.0mg (9 products) 7 studies — no high-quality reviews
100 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)

Other Ingredients

Gelatin Calcium Stearate Silica Medium Chain Triglyceride Crospovidone
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Take two capsules a day, preferably with a meal.

Warnings & Precautions

Warning: If you are pregnant or nursing, taking any medication, or have any medical condition, consult a health care professional before use.

Keep out of reach of children

Formulation Notes

Great Formula Bottle and Packaged in the USA New look, same great formula

Twinlab stress B-complex caps with Vitamin C are easy to swallow

No artificial colors, flavors, or preservatives added.

Stress formula with vitamin c

High potency

Additional Information

Keep tightly closed in a cool, dry place.

Metadata

Product Details

UPC / SKU0 27434 00287 5
DSLD Entry Date2022-06-16
Product TypeOther Combinations
FormCapsule
BrandTwinlab
DSLD ID268480
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
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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.