🟢 97/100

This product looks safe

  • Niacin: 80mg is 2.3× the Tolerable Upper Intake Level (35mg)
  • Folate: 408mg is 408.0× the Tolerable Upper Intake Level (1.0mg)
  • 54% of ingredients have research evidence
D Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Niacin: 80mg is 2.3× the Tolerable Upper Intake Level (35mg)
⚠️ Folate: 408mg is 408.0× the Tolerable Upper Intake Level (1.0mg)

Label Data

3 VegCap(s) Serving Size
20 Servings
Other Combinations Product Type
54% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
500 mg (556% DV)
13 mg (87% DV)
✅ Within RDA (0.9× RDA of 15 mg) 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 13mg UL 1000mg
5 mg (417% DV)
📊 4.2× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 5mg
2 mg (154% DV)
✅ 1.5× RDA — within safe limits 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 2mg
80 mg (500% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 2.3× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 80mg 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
408 mcg DFE (102% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 408.0× (UL: 1.0 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 408mg UL 1.0mg
100 mcg (4167% DV)
📊 41.7× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.1mg
1200 mcg (4000% DV)
📊 40.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 1.2mg
150 mg (3000% DV)
📊 30.0× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 150mg
50 mg (9% DV)
✅ Within RDA (0.1× RDA of 550 mg) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 50mg UL 3500mg
Iron
18 mg (100% DV)
15 mg (136% DV)
✅ 1.4× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 15mg UL 40mg
2 mg (222% DV)
✅ 2.2× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 2mg UL 10mg
2 mg (87% DV)
✅ Within RDA (0.9× RDA of 2.3 mg) 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 2mg UL 11mg
L-Cysteine
500 mg
📊 Market median: 1000.0mg (2 products)
This product: 250mg
📊 Market median: 320.0mg (426 products) 📚 24 studies (Tier A: 0, B: 5)
This product: 100mg
100 mg
📊 Market median: 108.0mg (8 products) 📚 9 studies (Tier A: 0, B: 4)
This product: 100mg
50 mg
📊 Market median: 500.0mg (193 products) 📚 7 studies — no high-quality reviews
This product: 50mg
50 mg
📊 Market median: 550.0mg (217 products) 📚 29 studies (Tier A: 0, B: 5)
This product: 50mg
📊 Market median: 500.0mg (9 products)
This product: 40mg
Gotu Kola aerial extract
25 mg
10 mg
📊 Market median: 60.0mg (107 products) 📚 1 studies — no high-quality reviews
This product: 10mg
L-Glutathione
2 mg
ActiSorb Base
10 mg

Other Ingredients

Cellulose Cellulose Magnesium Stearate Maltodextrin

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) Gluten Free

Product Information

📋 Directions for Use

3 Daily

Directions: Take 3 VegCaps daily with a meal or glass of water. Use only as directed.

⚠️ Warnings & Precautions

Warning: Do not use if safety seal is broken or missing. Keep your licensed health care practitioner informed when using this product. Niacin may cause a temporary flushing or tingling sensation in some people.

Keep out of reach of children. Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under six. In case of accidental overdose, call a doctor or poison control center immediately.

🧪 Formulation Notes

Healthy Hair & Scalp Support

Gluten free

Discussion: Hair Force is a highly potency Biotin formula intended to provide scalp and hair nutrition for men and women.

Additional Information

PCR Bottle

Store in a cool, dry place.

Comments or Questions: 800-538-5888 www.kalvitamins.com

Product Details

UPC / SKU 0 21245 72308 0
DSLD Entry Date 2024-12-21
Product Type Other Combinations
Form Capsule
Brand KAL
DSLD ID 322909
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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