Fastin: New, But Not Improved

Fastin is a weight loss and fat burning formulation that is currently available over the counter. Its manufacturer claims that it induces rapid thermogenic action, burning lots of fat fast, and that it also enhances and improves the user’s mood. Bear in mind, this is a new formula of Fastin, not the old version that was available by prescription only and was pulled off the market in 1998, likely because of complaints about its side effects. That is a common problem with diet pills. The new Fastin does not contain Phentermine. Let’s take a batter look at Fastin and determine whether it can actually deliver safe, rapid weight loss.

Fastin Contents Overview

According to the makers of Fastin, this fat burner features a proprietary blend of ingredients, including ThermoRX. This substance supposedly promotes better fat burning. This blend has caffeine and several other ingredients, including:

  • Caffeine Anhydrous. This gives energy and more alertness.
  • Proprietary blend with ThermoRX that has the following: Phenylethylamine HCL, Methylphenylethylamine, Methylsynephrine, Synephrine HCL,  and Yohimbine HCL

Fastin’s makers say that this proprietary blend of ingredients is a mood enhancer as well as a fat burner, and that it will help users meet their short-term goals for weight loss.

Pros and Cons of Fastin


  • This new version is easily purchased over the counter, no prescription needed


  • The “free trial” ends up leading to a bi-monthly shipment of Fastin, which is very expensive.
  • There are high amounts of caffeine in this supplement, to which some people are sensitive.
  • Not much scientific backing for Fastin’s claims that phenethylamine is a mood-enhancing supplement.

Side effects of Fastin

This fat burner has some potentially serious side effects, and users should bear that in mind prior to taking Fastin. Caffeine and phenethylamine, two of the primary ingredients, are both powerful stimulants, and they can potentially cause major anxiety, heart problems, high blood pressure, and insomnia. The company doesn’t recommend taking Fastin at night, because it can cause problems sleeping.

Fastin Product Recap

Fastin’s manufacturers lean heavily on the old prescription-only formula’s reputation as a powerful weight loss drug, but the formulations are completely different from one another. An OTC weight loss supplement that boasts of quick weight loss should be safe, but Fastin’s website has a large number of warnings about the product. The “free trial” offer can condemn you to a bi-monthly shipping contract, otherwise your one-month supply of the supplement will cost $59.95. Regardless of which billing option you choose, Fastin is still expensive for a caffeine-based fat burning supplement.  Most of the weight-loss ability of Fastin is through the action of caffeine, which is not a strong thermogenesis inducer. It’s better to go for a pharmacy-grade product that features clinically-proven ingredients, not just caffeine.

Phen375: The Right Choice

Phen375’s main ingredient is Phentemine, which is manufactured in FDA approved labs that is available over the counter. It has all the weight-loss benefits of Phentermine, without the negative side effects. However, Phen375 is more than just Phentemine!

Phen375 has four other major ingredients that help to speed up metabolism, burn more fat faster, build lean muscle mass faster, and even decrease your ability to store excess fat! These are not herbs or natural remedies, they are chemicals synthesized under strict laboratory conditions to be as potent and concentrated as possible. Pharmaceutically-produced cyclic AMP enzyme boosters, such as 1,3-Dimethypentylamine Hydrochloride, 1,3,7-Trimethylxanthine, and a Sympathomimetic Amine, LongJack Tongkate ALI, and Capsaicin-1.12 will help you lose the weight and keep it off. Without the prescription, without the side effects!

Give Phen375 a try. It is around $3.80 per day to use, which is reasonable for a top-notch product like Phen375. All you have to lose is the weight!