About: http://webisa.webdatacommons.org/233752407

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The pH of the skin is between 4.5 and 6.2, so it is acidic.[2][3] These contaminants and other chemicals are primarily alkaline in nature and the skin's moderate acidity helps to neutralize their chemical effects.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org