At the basis of our conscious experience are chemicals called neurotransmitters.
It also contains a chemical called thujone that can cause brain problems.
A chemical called phenol is usually used for a deep peel.
Many give off chemicals called toxins, which can damage tissue and make you sick.
It was all a plan to get hard data on the performance of a chemical called retrosarin.
The active ingredient of most spermicides is a chemical called nonoxynol-9.
"I think they usually use a chemical called ninhydrin, or something similar, but it's not my area of expertise."
Up until now, American regulators had focused on a chemical called melamine.
The brain needs nutrients to make necessary chemicals called neurotransmitters.
Threonine is changed in the body to a chemical called glycine.