Home/ Supplements/ Vitamin C/ Stress B&C

Stress B&C

product on market Capsule Priority One Nutritional Supplements Safety: 98/100
98/100

This product looks safe

  • Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
  • 59% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This formula contains B vitamins and vitamin C, which have strong evidence for supporting energy metabolism and nervous system function. These nutrients play a role in the body's physiological response to stress. The ingredient profile is associated with a high safety score.

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

Alerts

Safety Alerts

Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)

Label

Product Label

Label for Stress B&C
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
59%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
500 mg (833% DV)
100 mg (6667% DV)
83.3× RDA — above typical dose 76 studies (A:0, B:33)
101 mg (5924% DV)
77.7× RDA — above typical dose 13 studies (A:0, B:1)
100 mg (500% DV)
Exceeds UL by 2.9× (UL: 35 mg) 196 studies (A:5, B:63)
98 mg (4900% DV)
75.4× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
400 mcg (100% DV)
Within RDA (1.0× RDA) 226 studies (A:10, B:105)
500 mcg (8333% DV)
208.3× RDA — above typical dose 139 studies (A:1, B:44)
100 mcg (33% DV)
3.3× RDA — above typical dose 27 studies (A:0, B:11)
100 mg (1000% DV)
20.0× RDA — above typical dose 2 studies — no high-quality reviews
250 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
100 mg
Within RDA (0.2× RDA) 38 studies (A:1, B:7)
100 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
Para-Amino Benzoic Acid
50 mg
Adrenal concentrate
80 mg
Parsley
10 mg
Rose Hips
10 mg
Watercress
10 mg

Other Ingredients

Silicon Dioxide Maltodextrin Hypromellose Capsule
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Recommendations: Take two (2) capsules daily or as directed by your physician.

Warnings & Precautions

Warning: If you are pregnant or breast feeding, consult your physician before using this product. This product contains naturally occurring adrenal hormones.

Keep out of reach of children.

Formulation Notes

Contains no preservatives. Bisphenol-A (BPA) & Phthalate Free

(With Adrenal)

Non-GMO

Additional Information

Keep container tightly closed, store in a cool, dry place.

GMP Certified

Priority One Nutritional Supplements Inc since 1988

For professional use only.

Metadata

Product Details

UPC / SKU8 15354 02002 0
DSLD Entry Date2021-09-24
Product TypeOther Combinations
FormCapsule
BrandPriority One Nutritional Supplements
DSLD ID255624
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 →
Compare

Similar Products

Vitamin C Ester Ascorbyl Palmitate
OL Olympian Labs · Capsule
100
Vitamin C 1000 mg
PurHEALTH · Capsule
100
Ultra C Buffered
New Sun · Capsule
100
Black Elderbarry with Liposomal Vitamin C & Zinc
SunVita Health · Capsule
100
Natural Vitamin C
Herbadiet · Capsule
100
View all Vitamin C products →
Vitamin C research Best Vitamin C All Vitamin C products More from Priority One Nutritional Supplements View on NIH DSLD →

This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.