🟢 98/100

This product looks safe

  • Folate Complex: 30mg is 30.0× the Tolerable Upper Intake Level (1.0mg)
  • 60% of ingredients have research evidence
C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Folate Complex: 30mg is 30.0× the Tolerable Upper Intake Level (1.0mg)

Label Data

1.9 Gram(s) Serving Size
30 Servings
Botanical with Nutrients Product Type
60% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
500 mg (556% DV)
5 mcg (25% DV)
✅ Within RDA (0.3× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.005mg UL 0.1mg
3 mg (250% DV)
✅ 2.5× RDA — within safe limits 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 3mg
3 mg (231% DV)
✅ 2.3× RDA — within safe limits 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 3mg
3 mg (19% DV)
✅ Within RDA (0.2× RDA of 14 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 3mg UL 35mg
3 mg (60% DV)
✅ Within RDA (0.6× RDA of 5 mg) 📚 1 studies — no high-quality reviews
RDA 5mg This product: 3mg
3 mg (176% DV)
✅ 2.3× RDA — within safe limits 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 3mg UL 100mg
30 mcg (1250% DV)
📊 12.5× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.03mg
30 mcg DFE (7% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 30.0× (UL: 1.0 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 30mg UL 1.0mg
30 mcg (100% DV)
✅ Within RDA (1.0× RDA of 0.03 mg) 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.03mg
Calcium
25 mg (2% DV)
22 mg (5% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 22mg
Potassium
50 mg (1% DV)
425 mg
📊 Market median: 100.0mg (120 products)
Median 100.0mg This product: 425mg
Black Currant Fruit Extract
20 mg

Other Ingredients

Citric Acid Malic Acid Natural Mixed Berry Flavor Tartaric Acid Stevia Leaf Extract Proprietary Protective Methyl B12 Matrix

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) No Allergies Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

Suggested use Mix one packet of delicious and nutritious Efficient C Mixed Berry with 4 to 8 ounces of water. You can use more or less water to adjust flavor intensity.

🧪 Formulation Notes

Uncompromising quality & purity for over 40 years. 100% Solar production Zero-carbon footprint

No calories No sugar No carbs

Immune Vitamin C Energy B-Complex Stress Vitamin D3 500 mg Non-Acidic Vitamin C 200 IU Vitamin D3 Full B-Complex Methyl B12 Methyl Folate & More

Mixed berry + Anthocyanin Rich Bilberry + Black Currant

Supports Immune system & eye health

Efficient C Mixed Berry reinvents the vitamin C drink. It provides superior forms and amounts of all key nutrients and its delicious, natural flavor comes with NO calories, sugar or carbohydrates. Each serving provides an ideal 500 mg of non-acidic vitamin C for optimum absorption without stomach upset. The beverage’s rich color does not result from artificial colors, but from our unique blend of anthocyanin-rich extracts of bilberry and black currant providing extensive immune and eye health benefits. We also include our unique blend of all essential B-complex vitamins to support virtually all body processes, including energy production and fat metabolism. Plus, our B12 is present as natural methylcobalamin, which avoids the use of cyanocobalamin, a synthetic form of B12 that exposes us to cyanide. We also use naturally active 5-MTHF (5-methyltetrahydrofolate), instead of folic acid, since so many of us cannot metabolize ordinary folic acid. Of course, we also provide essential vitamin D3. We also avoid undesirable carbonation and instead you can enjoy the pure, natural flavor of Efficient C. In short, Efficient C Mixed Berry is a delicious new take on vitamin C drinks without any of the calories, sugars, carbs, artificial sweeteners or other undesirable additives of typical beverages. Plus, it also provides all the immune and eye support benefits of anthocyanin-rich extracts of bilberry and black currant.

Contains No milk, soy, yeast, wheat, gluten, sodium, salt, sugar, starch, fat, cholesterol, oil, emulsifier, wax, binder, filler, excipient, lubricant, coating, diluent, flowing agent, common allergens, color, preservative or genetically modified (GMO) ingredients.

Contains no additives or common allergens

Additional Information

For questions about the use of this product call 800.800.1200. To learn more visit www.EfficientC.com Questions? Reorders?

"The reinvention of the Vitamin C drink"

This package is sold by weight not by volume. It contains the full weight indicated on the label. Settling of contents can occur during shipment.

Percent Daily Values (% DV)

Product Details

UPC / SKU 782495
DSLD Entry Date 2024-11-22
Product Type Botanical with Nutrients
Form Powder
DSLD ID 320098
Data Updated 2026-04-11

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 in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
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
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
View all evidence for Vitamin C →

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