About: http://webisa.webdatacommons.org/432066914

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	In fact, Zinc, Vitamin A, 13-cis Retinoic Acid, Magnesium, Glutathione, and other nutrients have been reported as being defficient in acne sufferers, so I suppose that it makes sense that you would need at least zinc.
http://www.w3.org/ns/prov#wasQuotedFrom	acne.org