🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 38% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

1 Green Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
38% Evidence Coverage

Supplement Facts — Evidence Check

20 mg (125% DV)
✅ 1.4× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 20mg UL 35mg
📊 Market median: 180.0mg (239 products) 📚 43 studies (Tier A: 1, B: 19)
This product: 200mg UL 400mg
📊 Market median: 600.0mg (321 products) 📚 5 studies — no high-quality reviews
This product: 100mg
📊 Market median: 260.0mg (249 products) 📚 156 studies (Tier A: 4, B: 61)
This product: 50mg
📊 Market median: 450.0mg (167 products)
Median 450.0mg This product: 50mg
Capsicum seed extract
33.4 mg
Lychee fruit extract
25 mg
Black Pepper Fruit Extract
10 mg

Other Ingredients

Gelatin Microcrystalline Cellulose Sucrose Hydroxypropyl Cellulose Calcium Silicate Magnesium Stearate Talc Silica Cholorphyllin

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (97% of products) Structure/Function (86% of products) Nutrient (36% of products)

Target Groups

Adult Female (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take contents of one pack daily with food. For maximum benefits, take as directed every day.

⚠️ Warnings & Precautions

Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. Discontinue use two weeks prior to surgery. Inform your physician of this product's biotin content before any lab test. Niacin may cause a temporary flushing reaction.

Consult your physician prior to using this product if you are pregnant, nursing, taking medication or have a medical condition.

This product contains EGCG from green tea.

Keep out of reach of children.

Total caffeine per capsule is 200 mg.

🧪 Formulation Notes

This product contains EGCG from green tea.

No artificial flavors, gluten free, no milk. GF Gluten free

Rev up your regimen. With a multivitamin blend clinically proven to make you feel better, plus extra ingredients customized for calorie burn and mental sharpness, our Women's Vitapak Program Energy & Metabolism will help put pep in your step. In a random, double-blind, placebo-controlled study of 112 healthy volunteers, subjects takin GNC vitamin and mineral blends for six weeks experienced significant improvements in serum levels of certain key nutrients compared to a placebo and a leading multivitamin formula based upon multivariate statistical analyses of a group of B vitamins (thiamin, niacin, riboflavin, pantothenic acid, biotin, folic acid and vitamins B-6 and B-12) and key antioxidants and carotenoids (a group of beta-carotene, alpha-tocopherol, selenium, lutein and lycopene). Statistical improvements in SF-36 Vitality and mental health scores were also observed compared to placebo.

Your added support includes: Energy & Metabolism Features a clinically studied calorie-burning blend plus caffeine for mental alertness

Specially formulated for calorie burn & mental sharpness

Vitapak Program Energy & Metabolism Includes multivitamin + energy & metabolism igniter + fatty acid metabolizer + essential fatty acids

Each pack contains: Energy and Metabolism Igniter

Additional Information

Store in a cool, dry place.

For more information: 1-888-462-2548 GNC.com Our quality commitment to you Since 1935, our mission as the industry leader has been to provide you with the highest-quality nutritional supplements. We continue to stand behind this mission. If you're not 100% satisfied with your purchase, return the unused portion of the product with your receipt within 30 days and we'll either refund your money or find a replacement product that is right for you.

30 Packs/30-Day Supply

Product Details

DSLD Entry Date 2025-06-25
Product Type Other Combinations
Form Capsule
Brand GNC Women's
Bundle Vitapak Program Energy & Metabolism
DSLD ID 331492
Data Updated 2026-04-11

Research Evidence

241 Research Sources
55 Avg Quality Score
113 Meta Analysis
75 Systematic Review
32 Rct
11 Clinical Trial
3 Other
3 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Openfda Safety
A Niacin for primary and secondary prevention of cardiovascular events
Meta Analysis The Cochrane database of systematic reviews 2017
A Use of high potency statins and rates of admission for acute kidney injury: multicenter, retrospective observational analysis of administrative databases
Meta Analysis BMJ (Clinical research ed.) 2013
A Effect on cardiovascular risk of high density lipoprotein targeted drug treatments niacin, fibrates, and CETP inhibitors: meta-analysis of randomised controlled trials including 117,411 patients
Meta Analysis BMJ (Clinical research ed.) 2014
A A terminal metabolite of niacin promotes vascular inflammation and contributes to cardiovascular disease risk
Meta Analysis Nature medicine 2024
A Meta-analysis and imputation refines the association of 15q25 with smoking quantity
Meta Analysis Nature genetics 2010
A Genome-wide meta-analyses identify multiple loci associated with smoking behavior
Meta Analysis Nature genetics 2010
A Antidepressants for smoking cessation
Meta Analysis The Cochrane database of systematic reviews 2014
A Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne
Meta Analysis The Cochrane database of systematic reviews 2020
B Assessment of the Role of Niacin in Managing Cardiovascular Disease Outcomes: A Systematic Review and Meta-analysis
Meta Analysis JAMA network open 2019
B Association Between Lowering LDL-C and Cardiovascular Risk Reduction Among Different Therapeutic Interventions: A Systematic Review and Meta-analysis
Meta Analysis JAMA 2016
View all evidence for Niacin →

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