🟢 97/100

This product looks safe

  • Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
  • Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)
  • 73% of ingredients have research evidence
D Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
⚠️ Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)

Label Data

4 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
73% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin A
1500 mcg (167% DV)
Vitamin C
300 mg (333% DV)
50 mcg (250% DV)
📊 3.3× RDA — above typical dose (UL: 0.1 mg) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.05mg UL 0.1mg
67 mg (447% DV)
📊 4.5× RDA — above typical dose (UL: 1000 mg) 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 67mg UL 1000mg
12 mg (1000% DV)
📊 10.0× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 12mg
5 mg (385% DV)
📊 3.8× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 5mg
50 mg (313% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.4× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 50mg UL 35mg
20 mg (1176% DV)
📊 15.4× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 20mg UL 100mg
667 mcg DFE (167% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 667.0× (UL: 1.0 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 667mg UL 1.0mg
500 mcg (20833% DV)
📊 208.3× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.5mg
300 mcg (1000% DV)
📊 10.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.3mg
25 mg (500% DV)
📊 5.0× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 25mg
100 mcg (67% DV)
✅ Within RDA (0.7× RDA of 0.15 mg) 📚 243 studies (Tier A: 4, B: 133)
RDA 0.15mg This product: 0.1mg UL 1.1mg
300 mg (71% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 300mg
22 mg (200% DV)
✅ 2.0× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 22mg UL 40mg
150 mcg (273% DV)
✅ 2.7× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.15mg UL 0.4mg
200 mcg (571% DV)
📊 5.7× RDA — above typical dose 📚 197 studies (Tier A: 1, B: 55)
RDA 0.035mg This product: 0.2mg
Spectra Performance Blend
100 mg
📊 Market median: 500.0mg (283 products) 📚 173 studies (Tier A: 0, B: 62)
This product: 100mg
📊 Market median: 100.0mg (284 products) 📚 10 studies (Tier A: 0, B: 4)
This product: 50mg
25 mg
📊 Market median: 500.0mg (283 products) 📚 173 studies (Tier A: 0, B: 62)
This product: 25mg
10 mg
📊 Market median: 10.0mg (105 products) 📚 1 studies (Tier A: 0, B: 1)
This product: 10mg
📊 Market median: 80.0mg (20 products) 📚 334 studies (Tier A: 8, B: 183)
This product: 10mg
5 mg
📊 Market median: 3.0mg (58 products) 📚 2 studies — no high-quality reviews
This product: 5mg UL 20mg
BioPerine
3 mg
2 mg
📊 Market median: 4.0mg (32 products)
This product: 2mg

Other Ingredients

Gelatin Cellulose Vegetable Magnesium Stearate

Label Claims — Verification

Nutrient
Structure/Function
All Other (99% of products) Structure/Function (76% of products) Nutrient (58% of products)

Target Groups

Adult Male (18-50 Years)

Product Information

📋 Directions for Use

Suggested Use: Take 4 capsules daily with a meal (or divide during the day). For daily use.

🧪 Formulation Notes

Vitamins Minerals Phytonutrients

Supports healthy testosterone levels Promotes energy, vitality and stamina

Additional Information

Intelligent nutritional solutions

Premium grade supplements Since 1993

Product Details

DSLD Entry Date 2021-02-25
Product Type Other Combinations
Form Capsule
DSLD ID 243860
Data Updated 2026-04-11

Research Evidence

337 Research Sources
54 Avg Quality Score
161 Meta Analysis
68 Systematic Review
51 Rct
48 Clinical Trial
2 Other
2 Regulatory Source
1 Narrative Review
1 Cochrane Review
1 Guideline
1 Openfda Safety
A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age
Meta Analysis The Cochrane database of systematic reviews 2017
A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
Meta Analysis The Cochrane database of systematic reviews 2011
A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
Meta Analysis The Cochrane database of systematic reviews 2011
A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
Meta Analysis BMJ (Clinical research ed.) 2011
A Fortification of staple foods with vitamin A for vitamin A deficiency
Systematic Review The Cochrane database of systematic reviews 2019
A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
Narrative Review The Cochrane database of systematic reviews 2016
A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa
Meta Analysis The Cochrane database of systematic reviews 2020
A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of sport and health science 2023
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019
A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age
Meta Analysis The Cochrane database of systematic reviews 2024
View all evidence for Vitamin A →

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