Lean System 7, manufactured by Isotori, is a fat burning supplement also known as LS7. The official website boasts that Lean System 7 has over 1 million consumers worldwide. The “7” in the name refers to the number of active ingredients in the formula that support weight loss.

Active Ingredients
- Citrus Aurantium
- Green Tea
- Yerba Mate
- Dandelion Leaf
- Guarana
- Bioperene
- Keto
The above listed active ingredients are commonly found in many formulas for fat burners. It is unclear what amount of each weight loss ingredient is present in the Lean System 7 slimming tablets. Lean System 7 formerly contained Ephedra, a stimulant that is now banned for sale in over the counter weight loss products. The new formula is free of that ingredient.
Efficacy
According to reviews, Lean System 7 is a moderately effective fat burner. Its new formula is somewhat less effective than the old formula that contained Ephedra. Its efficacy is somewhat difficult to determine based on lack of information about the amounts of each weight loss ingredient.
Potential Side Effects
Caution is recommended for consumers who are sensitive to stimulants. Lean System 7 contains caffeine in the form of Citrus Aurantium, Green Tea, and Guarana. For sensitive individuals, caffeine may cause headaches, nausea, rapid heartbeat, restlessness, irritability, and sleeplessness.
Recommendations
Lean System 7 is not highly recommended as a potent fat burner, mainly due to lack of information about ingredient amounts coupled with the removal of Ephedra from the formula. A number of other fat burning pills on the market have been clinically tested and are supported by positive consumer testimonials.
We recommend Capsiplex instead of Lean System 7.
