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Stacker 2 Capsules

product on market Capsule Stacker 2 Safety: 90/100
90/100

This product looks safe

  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 33% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Caffeine is supported by strong evidence for increasing alertness and metabolic rate. There is limited research available regarding the efficacy and safety of the proprietary Tri-Gugglyptoid3 Complex. Overall, the evidence coverage for this specific ingredient profile is very low.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Contains proprietary blend — exact ingredient amounts not disclosed

Label

Product Label

Label for Stacker 2 Capsules
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
Other Combinations
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Proprietary Blend
198 mg
200 mg
Market median: 180.0mg (239 products) 49 studies (A:1, B:19)
Tri-Gugglyptoid3 Complex(TM)
25 mg

Other Ingredients

Dextrose Gelatin Stearic Acid Magnesium Stearate Titanium Dioxide FD&C YELLOW #5 FD&C BLUE #1 FD&C RED #3 FD&C YELLOW #6
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

SUGGESTED USE: ONE CAPSULE AFTER MEALS.

Warnings & Precautions

DO NOT USE IF YOU ARE PREGNANT OR NURSING.

IMPORTANT: READ DIRECTIONS ON REVERSE SIDE BEFORE USE.

NOT RECOMMENDED FOR USE BY MINORS KEEP OUT OF REACH OF CHILDREN.

DO NOT EXCEED THREE DAILY.

WARNING: NOT RECOMMENDED FOR USE BY MINORS.

DO NOT EXCEED SUGGESTED SERVING. INDIVIDUALS WHO CONSUME CAFFEINE WITH THIS PRODUCT MAY EXPERIENCE SERIOUS ADVERSE HEALTH EFFECTS. INDIVIDUALS WHO ARE SENSITIVE TO THE EFFECTS OF CAFFEINE SHOULD CONSULT A LICENSED HEALTH CARE PROFESSIONAL BEFORE CONSUMING THIS PRODUCT. IN CASE OF ACCIDENTAL OVERDOSE, SEEK PROFESSIONAL ASSISTANCE OR CONTACT A POISON CONTROL CENTER IMMEDIATELY. AVOID ALCOHOL WHILE TAKING THIS PRODUCT. DO NOT EXCEED RECOMMENDED SERVING. EXCEEDING RECOMMENDED SERVING MAY CAUSE SERIOUS ADVERSE HEALTH EFFECTS, INCLUDING HEART ATTACK AND STROKE. DISCONTINUE USE AND CALL A PHYSICIAN OR LICENSED QUALIFIED HEALTH CARE PROFESSIONAL IMMEDIATELY IF YOU EXPERIENCE RAPID HEARTBEAT, DIZZINESS, SEVERE HEADACHE, SHORTNESS OF BREATH OR OTHER SIMILAR SYMPTOMS. IMPROPER USE OF THIS PRODUCT MAY BE HAZARDOUS TO A PERSON'S HEALTH. EXCEEDING RECOMMENDED SERVING WILL NOT IMPROVE RESULTS.

Additional Information

D012010 LOT# 94-2404

MADE IN USA

Metadata

Product Details

UPC / SKU3 58286 94004 7
DSLD Entry Date2013-03-25
Product TypeOther Combinations
FormCapsule
BrandStacker 2
DSLD ID19303
Data Updated2026-04-11
Research

Research Evidence

82
Research Sources
51
Avg Quality
28
Rct
19
Meta Analysis
17
Clinical Trial
16
Systematic Review
A Preconception lifestyle advice for people with infertility
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
B The effects of caffeine intake on weight loss: a systematic review and dos-response meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2019 PubMed DOI
B Effects of caffeine chewing gum supplementation on exercise performance: A systematic review and meta-analysis
Meta Analysis European journal of sport science 2023 PubMed DOI
B Genetic susceptibility to caffeine intake and metabolism: a systematic review
Systematic Review Journal of translational medicine 2024 PubMed DOI
B Pharmacological interventions for sleepiness and sleep disturbances caused by shift work
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
B Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis
Meta Analysis Nutrients 2022 PubMed DOI
B The effects of green tea extract supplementation on body composition, obesity-related hormones and oxidative stress markers: a grade-assessed systematic review and dose-response meta-analysis of randomised controlled trials
Meta Analysis The British journal of nutrition 2024 PubMed DOI
B Effect of green tea catechins with or without caffeine on anthropometric measures: a systematic review and meta-analysis
Systematic Review The American journal of clinical nutrition 2010 PubMed DOI
B Caffeine, CYP1A2 Genotype, and Endurance Performance in Athletes
Rct Medicine and science in sports and exercise 2018 PubMed DOI
B The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness
Rct Nutritional neuroscience 2010 PubMed DOI
View all evidence for Caffeine →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.