Stress B-Complex Caps
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
Product Label
Have a supplement label? Find it here.
Upload a photo of any supplement label to search our database of 92,312 products.
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 Data
2 Capsule(s)
Serving Size
125
Servings
Other Combinations
Product Type
75%
Evidence Coverage
Supplement Facts — Evidence Check
Vitamin C
1000 mg
(1111% DV)
50 mg
(4167% DV)
📊 41.7× RDA — above typical dose
📚 76 studies (Tier A: 0, B: 33)
50 mg
(3846% DV)
📊 38.5× RDA — above typical dose
📚 12 studies (Tier A: 0, B: 1)
70 mg NE
(438% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 2.0× (UL: 35 mg)
📚 193 studies (Tier A: 5, B: 63)
40 mg
(2353% DV)
📊 30.8× RDA — above typical dose (UL: 100 mg)
📚 113 studies (Tier A: 3, B: 35)
667 mcg DFE
(167% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 667.0× (UL: 1.0 mg)
📚 225 studies (Tier A: 10, B: 105)
50 mcg
(2083% DV)
📊 20.8× RDA — above typical dose
📚 138 studies (Tier A: 1, B: 44)
100 mcg
(333% DV)
📊 3.3× RDA — above typical dose
📚 26 studies (Tier A: 0, B: 11)
36 mg
(720% DV)
📊 7.2× RDA — above typical dose
📚 1 studies — no high-quality reviews
40 mg
(7% DV)
✅ Within RDA (0.1× RDA of 550 mg)
📚 36 studies (Tier A: 1, B: 7)
50 mg
📊 Market median: 500.0mg (9 products)
100 mg
📊 Market median: 550.0mg (217 products)
📚 29 studies (Tier A: 0, B: 5)
Other Ingredients
Gelatin
Calcium Stearate
Silica
Medium Chain Triglyceride
Crospovidone
Label Claims — Verification
❓
Nutrient
❓
All Other
❓
Structure/Function
All Other (99% of products)
Structure/Function (83% of products)
Nutrient (54% of products)
Target Groups
Adult (18 - 50 Years)
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.
Product Details
Research Evidence
371
Research Sources
54
Avg Quality Score
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 for the primary prevention of cardiovascular disease
A
Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Compare Similar Products
Vitamin C Ester Ascorbyl Palmitate
OL Olympian Labs
100
Vitamin C 1000 mg
PurHEALTH
100
Ultra C Buffered
New Sun
100
Black Elderbarry with Liposomal Vitamin C & Zinc
SunVita Health
100
Natural Vitamin C
Herbadiet
100