NAC

Acetylcysteine, also known as N-acetylcysteine (NAC), is used by the body to build antioxidants and is used as a medication. Cysteine is the chemical composition of hair, all animal hair. 
It is used to treat paracetamol (acetaminophen) overdose, and to loosen thick mucus in individuals with cystic fibrosis or chronic obstructive pulmonary disease.[1] It can be taken intravenously, by mouth, or inhaled as a mist.[1] Some people use it as a dietary supplement.[6][7]
E.g. as it is cysteine, the chemical composition of hair, all animal hair--in
 the acetyl form--NAC crosses the blood to brain barrier and scavenges 
poisons in poisons in our toxin-loving CNS.
== Branching ==
* See: Drugs.
* See more generally: Biology.
Category:Drugs
Category:Supplements
Category:Medicines