Fastin

product on market Tablet or Pill Hi-Tech Pharmaceuticals Safety: 90/100
90/100

This product looks safe

  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Caffeine anhydrous is supported by strong evidence for increasing alertness and metabolic rate. However, the remaining proprietary blend lacks transparency, resulting in very limited evidence coverage for the overall profile. The product maintains a high safety score despite these undisclosed components.

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 Fastin
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
30
Servings
Non-Nutrient/Non-Botanical
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Proprietary Blend (Non-Nutrient/Non-Botanical)
245 mg
Market median: 180.0mg (239 products) 49 studies (A:1, B:19)

Other Ingredients

Dextrose Microcrystalline Cellulose Hydroxypropyl Methylcellulose Stearic Acid Magnesium Stearate Sodium Starch Glycolate Starch Silica
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Dosage: Take 1-2 tablets in the morning and 1 tablet after lunch.

Warnings & Precautions

Do not exceed 4 tablets daily.

Warning: Not for use by individuals under the age of 18 years.

Do not use if you are pregnant or nursing.

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, sever headache, shortness of breath, or other similar symptoms. Improper use of this product may be hazardous to a persons health. Exceeding recommended serving will not improve results.

Do not use for more than 8 weeks.

Consult with your physician prior to use if you are taking medication, including but not limited to MAOI inhibitors, aspirin, antidepressants, nonsteroidal anti-inflammatory drugs or products containing phenylephrine ephedrine, pseudoephedrine, or other stimulants.

Consult with your physician prior to use if you have a medical condition, including but not limited to, heart, liver, kidney or thyroid disease, psychiatric or epileptic disorders, difficulty urinating, diabetes, high blood pressure, cardiac arrhythmia, recurrent headaches, enlarged prostate or glaucoma.

Discontinue 2 weeks prior to surgery.

Formulation Notes

(Phenylethylamine HCL)

Additional Information

The world's most advanced weight loss aid every developed!

HTP HI-TECH PHARMACEUTICALS

Rapid fat burner

Rapid fat loss catalyst

- Increases the metabolic rate, promoting thermogensis (the burning of stored body fat) - Increases the release of norepinephrine and dopamine for dramatic weight loss - Promotes extreme energy and does not cause the "jitters"

Thermogenic intensifier

Rapid fat loss

Fastin(R) is heat and moisture sensitive, and the bottle should remain sealed after using. Keep desiccant in the bottle to avoid moisture. Store at room temperature 59(0)- 86(0)F protected from moisture, heat and light. Failure to do so may cause pills to slightly turn brown. This will not affect the efficacy, potency or safety of the product, but wil cause Fastin(R) to become brittle.

To report adverse effects call FDA's MedWatch at 1-800-332-1088

Metadata

Product Details

UPC / SKU8 57084 00008 8
DSLD Entry Date2015-08-25
Product TypeNon-Nutrient/Non-Botanical
FormTablet or Pill
DSLD ID49253
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
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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.