Ammonia can be produced by the break-down of amino acids, or by the gut bacteria in humans. If the level of ammonia in the blood becomes too high, then it becomes toxic to the brain. The urea cycle ...

This e-learning module gives an overview of the carbon-13 urea breath test (13 C-UBT) for Helicobacter pylori (H. pylori) infection. It describes a robust test for the diagnosis of gastric H. pylori ...

Urea skin care might not sound super sexy, but there’s a reason the inconspicuous ingredient is seeing a real resurgence. We’re no strangers to breaking down beauty trends or testing out that skin ...

Urea is a skin-care ingredient that can be found in face creams, lotions, and serums. Urea has two main skin-care benefits: exfoliation and hydration. Ahead, a dermatologist answers common questions ...