Abrexin Reviews When thermogenesis is increased in the body, it allows for more calories to be burned—that’s what Abrexin claims to be able to do. It aids people who are left to deal with a slow metabolism by improving the body’s fat burning function. BioPerine, GP Shield, and Lactoferrin are some of the key ingredients included in Abrexin’s formulation that are scientifically known to increase burning of calories in the body. Abrexin – Ingredients BioPerine (Black Pepper Extract) GP Shield Lactoferrin Abrexin – Product Description Black Pepper Extract, an ingredient more commonly known in the diet pill industry as BioPerine, is known to improve calorie burn by maximizing the body’s absorption of other ingredients mixed with it in a weight loss supplement. Lactoferrin is a milk extract that fosters normal gut flora and thermogenic activity in one’s internal system, while GP Shield is responsible for keeping Lactoferrin’s effects high by protecting it against stomach acids. One capsule...