Fastin® Diet Pills - Hi-Tech Pharmaceuticals - 60 Tablets

What is Fastin Diet Pills?

Hi-Tech Pharmaceuticals' Fastin is a powerful fat burner.† It is here to deliver unbelievable results you've been dreaming of but never thought was possible._† Fastin contains a proprietary blend of Hi-Tech’s most powerful herbal stimulant compounds, with the central ingredient being Phenylethylamine HCL, a popular stimulant most commonly referred to as PEA._†

Fastin is a “feel good” product with rapid stimulant effects that will have you feeling energized and motivated almost immediately._† The best part is, with Fastin there is no crashing afterwards, just lasting clean energy with a smooth come down._†

Looking for a stronger, longer lasting version of Fastin? Check out Fastin-XR with almost double the amount of stimulants in each serving with a extended release formula.

How Do I Take Fastin Diet Pills?

Suggested Dosage and Directions:

• Take 1-2 tablets in the morning and 1 tablet after lunch. Do not exceed 4 tablets daily.
• We recommend assessing your tolerance first by taking 1 tablet in the morning with a meal. After assessing your tolerance, you may increase the dosage slowly. Make sure to stay hydrated. 

How Does It Work?

Hi-Tech's Fastin functions by speeding up your metabolism so that your body will burn more fat for energy._† Fastin contains appetite suppressants that work to fight off unwanted hunger pains so you can stay focused on your goals._†

Ingredients:

• Caffeine (Anhydrous) 200mg: may help to improve energy._†

Proprietary Blend with Thermo-Rx: 245mg

• Phenylethylamine HCI: may help to promote weight loss, and increase mood & attention._(2,3,4)
• Methylsynephrine HCI: may help to elevate mood._{. (6,7)}
• Theobromine Anhydrous: may help to elevate mood.₍₅₎
• 2-Aminoisoheptane HCI: may help to increase energy and appetite control.₍₁₎
• Synephrine HCI: may help to increase energy, metabolism, and appetite control._{. (6,7)}
• N-Methyl-B-Phenylethylamine HCI: may help to promote weight loss and increase mood & attention._(2,3,4)
• Yohimbine HCI: may help to promote weight loss._(8,9)

Other Ingredients: Dextrose, Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Stearic Acid, Magnesium Stearate, Sodium Starch Glycolate, Starch, Silica.

What Can I Expect?

*Results may vary person to person*

• Supports weight control_†
• Suppresses appetite_†
• Improves mood and sense of well-being_†
• Heightens focus_†
• Reduces fatigue_†

Who Should Take It?

Fastin is ideal for men or women who are looking to lose weight and want a fat burner that may boost their energy, focus, mood and suppress their appetite._†

FAQ:

My pills are brown, is that okay?

• This means the tablets have been exposed to heat or light. However, this will not alter the effectiveness, potency or safety of the product._† Fastin 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 59ᵒ-86ᵒ 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 will cause it to become brittle.

Is phentermine/adipex and Fastin the same thing?

• No, Phentermine/Adipex is a prescription medication (medicine) to help you lose weight.† Fastin is an over the counter (OTC) weight loss aid._†

How much caffeine does it have?

• 200mg per serving (tablet).

How Does Fastin Compare to Other Fat Burners?

Wondering how Fastin by Hi-Tech Pharmaceuticals stacks up against other popular fat burners or even Fastin XR? Or maybe you're curious about how it compares to options like ECA Xtreme or Stimerex ES? We break it all down for you—including ingredient highlights, effects, and stacking tips in our detailed review.

Looking to take your results further? Many users stack Fastin with non-stimulant fat burners like CLA 1000 and Carnislim for added support.† It's also a popular component in the Slima Fat Weight Loss Stack, paired with Slimgovy for appetite control and long-lasting energy.†

•  Fastin Review: 2026 UPDATE – Full Ingredient Breakdown, Benefits & More

Still not sure if Fastin is right for you? Take our Fat Burner Questionnaire and find your perfect match based on your lifestyle, goals, and stimulant tolerance.

Warnings and Side Effects:

This product is intended for healthy adults only and should not be used by individuals under 18 years of age or by those who are pregnant or nursing. It contains stimulants and may raise blood pressure or interfere with medications. Do not combine with other sources of caffeine or synephrine, including coffee, tea, soda, or other supplements. Always read the full label before use and consult with your physician—especially if you are taking medications (such as antidepressants, NSAIDs, or stimulants) or have medical conditions related to the heart, liver, kidneys, thyroid, blood pressure, or mental health.

Discontinue use 2 weeks before surgery or if adverse effects like rapid heartbeat, dizziness, or shortness of breath occur. Do not exceed the recommended dosage. Misuse may result in serious health risks, including a heart attack or stroke. This product may also be banned by some athletic organizations or lead to false positives on drug tests. Speak with your doctor and organization before use._†

Disclaimer:

PLEASE NOTE: Product images represent the product offered but may not contain exact attributes. Please read the product description for the specific attributes of this product.

_†PLEASE NOTE: The information provided on this page is intended for general informational purposes only. While we strive to ensure that the details are accurate and up-to-date, we cannot guarantee that they reflect the latest product formulation or version. For the most current and accurate information, we recommend consulting the manufacturer's official website. The information provided here is based on the details made available by the manufacturer and may not reflect our independent views or endorsements. The Food and Drug Administration has not evaluated the claims made about this product. This product is not intended to diagnose, treat, cure, or prevent any disease or medical condition.

*Prices are subject to change at any time, and items may be limited to stock on hand.

**Same Day Supplements is an authorized retailer of Hi-Tech Pharmaceuticals