This product contains 16 active ingredients. The 7 largest ingredients are; Panax Ginseng (1200mg), Guarana Seed (400mg), Green Tea (375mg), Caffeine Anhydrous (270mg), L-Theanine (225mg), Acetyl L-Carnitine (200mg), and L-Tyrosine (200mg). When listing the ingredient information, you can see that I saved the largest two ingredients for the end. You’ll see why when you get to them.

Green Tea-Gives energy and boosts metabolism

• Green tea is commonly found in weight loss products. It has this popularity because of its reliability and effectiveness.

Caffeine Anhydrous-Another metabolism booster and energy provider

• Caffeine, similar to green tea, is typical for diet pills. Both ingredients have similar benefits, though, caffeine can also aid in appetite suppression.

L-Theanine-Promotes improved mental functions

• This is a non-essential amino acid that is primarily found in tea leaves. It works best when it is combined with caffeine, which in this formula, it is.

Acetyl L-Carnitine-Helps with muscle building

• Being an essential amino acid alone makes this ingredient important to your body. Supplementation of it is more commonly found in pre-workout products, rather than diet pills. Regardless, it can still have positive benefits for your body.

L-Tyrosine-Provides EVEN MORE ENERGY

• Not only will this component aid you with even more energy, but it can also help combat fatigue. Evidence has even suggested that it may be able to help increase fat oxidation.

I know you are probably bored of reading such a long list about supplement ingredients. Don’t worry, you’re almost finished. Plus, the next two ingredients are the most important to look into.

Panax Ginseng-Supports endurance and cognitive function

• This is the largest ingredient found in this product at 1200mg. Web MD reports that, “Panax ginseng is POSSIBLY UNSAFE when taken by mouth, long-term.” Because so much of this product consists of panax ginseng, I don’t recommend Phentaslim on this information alone. It was also announced on Web MD that, “Researchers think it may have some hormone-like effects that could be harmful with prolonged use.”

Guarana Seed-ANOTHER source of energy

• It works in a similar way that caffeine does to boost energy in the body. Much like panax ginseng, the second largest ingredient has also been reported that, “When taken by mouth in high doses for a long time, guarana is POSSIBLY UNSAFE.” I can’t in good conscience recommend either of these ingredients.