Optimum Silver
89/100
This product is generally safe
- Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
- Contains proprietary blend — exact ingredient amounts not disclosed
- 64% of ingredients have research evidence
C
Label Compliance Grade
Product Label
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Safety Alerts
⚠️ Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed
Label Data
3 Capsule(s)
Serving Size
60
Servings
Other Combinations
Product Type
64%
Evidence Coverage
Supplement Facts — Evidence Check
Vitamin A
4000 IU
(80% DV)
Vitamin C
200 mg
(333% DV)
600 IU
(150% DV)
✅ Within RDA (1.0× RDA of 0.015 mg)
📚 604 studies (Tier A: 16, B: 251)
100 IU
(333% DV)
📊 4.5× RDA — above typical dose (UL: 1000 mg)
📚 177 studies (Tier A: 3, B: 90)
125 mcg
(156% DV)
✅ Within RDA (1.0× RDA of 0.12 mg)
📚 273 studies (Tier A: 9, B: 175)
10 mg
(666% DV)
📊 8.3× RDA — above typical dose
📚 76 studies (Tier A: 0, B: 33)
7.5 mg
(441% DV)
📊 5.8× RDA — above typical dose
📚 12 studies (Tier A: 0, B: 1)
50 mg
(250% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.4× (UL: 35 mg)
📚 193 studies (Tier A: 5, B: 63)
12.5 mg
(625% DV)
📊 9.6× RDA — above typical dose (UL: 100 mg)
📚 113 studies (Tier A: 3, B: 35)
200 mcg
(50% DV)
✅ Within RDA (0.5× RDA of 0.4 mg)
📚 225 studies (Tier A: 10, B: 105)
500 mcg
(8333% DV)
📊 208.3× RDA — above typical dose
📚 138 studies (Tier A: 1, B: 44)
300 mcg
(100% DV)
📊 10.0× RDA — above typical dose
📚 26 studies (Tier A: 0, B: 11)
50 mg
(500% DV)
📊 10.0× RDA — above typical dose
📚 1 studies — no high-quality reviews
Calcium
100 mg
(10% DV)
75 mcg
(50% DV)
✅ Within RDA (0.5× RDA of 0.15 mg)
📚 243 studies (Tier A: 4, B: 133)
100 mg
(25% DV)
📊 Market median: 4002.0mg (1 products)
📚 20 studies (Tier A: 0, B: 2)
12.5 mg
(83% DV)
✅ 1.1× RDA — within safe limits
📚 258 studies (Tier A: 6, B: 134)
75 mcg
(107% DV)
✅ 1.4× RDA — within safe limits
📚 172 studies (Tier A: 0, B: 67)
0.5 mg
(25% DV)
✅ Within RDA (0.6× RDA of 0.9 mg)
📚 36 studies (Tier A: 0, B: 11)
1.25 mg
(63% DV)
✅ Within RDA (0.5× RDA of 2.3 mg)
📚 8 studies — no high-quality reviews
100 mcg
(83% DV)
✅ 2.9× RDA — within safe limits
📚 197 studies (Tier A: 1, B: 55)
100 mcg
(133% DV)
✅ 2.2× RDA — within safe limits
📚 2 studies — no high-quality reviews
150 mg
📊 Market median: 600.0mg (7 products)
📚 39 studies (Tier A: 2, B: 13)
75 mg
📊 Market median: 500.0mg (861 products)
📚 60 studies (Tier A: 4, B: 13)
50 mg
📊 Market median: 200.0mg (198 products)
📚 6 studies — no high-quality reviews
DMAE
50 mg
37.5 mg
📊 Market median: 550.0mg (217 products)
📚 29 studies (Tier A: 0, B: 5)
15 mg
📊 Market median: 500.0mg (19 products)
Vinpocetine
5 mg
1.5 mg
📊 Market median: 10.0mg (105 products)
📚 1 studies (Tier A: 0, B: 1)
1.5 mg
📊 Market median: 10.0mg (35 products)
📚 5 studies (Tier A: 0, B: 2)
Proprietary Blend
627 mg
Other Ingredients
Hydroxypropylmethylcellulose
Label Claims — Verification
❓
All Other
All Other (99% of products)
Structure/Function (76% of products)
Nutrient (58% of products)
Target Groups
Adult (18 - 50 Years)
Product Information
📋 Directions for Use
Directions: Take 3 capsules two times per day with meals.
⚠️ Warnings & Precautions
Keep out of reach of children.
Additional Information
Since 1979
VRP
TESTED FOR QUALITY & PURITY
Keep container tightly closed in a cool, dry and dark place.
Code Number: 3340 This product is manufactured in a NSF GMP registered facility.
Chromax(R)
300-VRP3340A-E
Product Details
UPC / SKU
8 10832 01157 6
DSLD Entry Date
2014-06-25
Product Type
Other Combinations
Form
Capsule
DSLD ID
34058
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
A
Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
A
Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
A
Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
A
Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
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
A
Food fortification with multiple micronutrients: impact on health outcomes in general population
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