SlenderTone Flex Women Review

Editor's Review: 2.7 / 5.0

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Slendertone Flex Pro promotes solid and muscular abdominal muscles by using their muscle strengthening program. This product, intended for women, (you can also find a version for men), does not require numerous stomach crunches to enhance your abdominal muscles. Slendertone employs a patented (pending) and clinically proven Concentrated Slendertone Innervation or CSI technology to shape and build up your abdominal core section by applying technology that stimulates your muscles. The Slendertone Flex Pro system features three pre-set Gel Pads that cover the stomach muscles and oblique stomach muscles. The belt sends signals to the nerves, stimulating them. In turn, the nerves forward the signals to all the abdominal muscles, causing them to involuntarily exercise at the same time. The system is a proven solution known to strengthen and tighten muscles in the abdominal area, and improve abdominal muscle stamina.

List of Ingredients

Flex Pro belt, interactive master control unit featuring LCD display, seven progressive programs, three Gel Pads, travel case, belt extender, Quick Start Guide, Instruction Manual, 3 AAA batteries.

Not applicable.

Product Features

The Slendertone Flex Pro features seven programs that provide a vigorous exercise that can be appreciated by everyone from those who are serious about their workout to novices just getting started. Three gel pads are also included, batteries (3 AAA), a master electronic unit, a case, and a belt expander. It is breathable and very lightweight, and features a body friendly design that accommodates women with waist sizes from 24 to 47 inches. The product offers a warranty period of one year.

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  • Flexible programming with 7 built-in programs and more than 99 intensity levels to accommodate personal choice.
  • Portability for convenience and ease of use.
  • State-of-the-art technology that generates intense muscle exercise that stimulate and tone abdominal muscles.
  • Components durable as medical quality, including Gel Pads.
  • Product is small and does not take up much room.


  • High entry cost and additional costs for ongoing consumables (pads, batteries).
  • Questionable durability of LCD display.
  • Does not replace need for healthy eating and exercise.
  • Not intended for pregnant women.
  • Results take a longer time to appear.


Slendertone Flex Pro for women employs Electronic Muscle Stimulation (EMS) technology resulting in powerful stomach muscle contractions. It emulates real stomach muscle activity and signals are sent from the gel pads to your muscles. This control causes your stomach muscles to contract naturally.

The Slendertone Flex Pro is the first product using Electronic Muscle Stimulation to be approved by the Food and Drug Administration (FDA) as a class II medical device for sale directly to the consumer. The Flex Belt is intended for people seeking to flatten and tone their abdomen muscles. This product also serves people that may already be in shape, yet seeking to continue strengthening their abdominal muscles.

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