According to a new study by German researchers, supplementing with 1 tablespoon (15 ml) of silica (silicon) in gel form for six months can increase hair thickness by almost 13%. The study involved 55 healthy adult women with thin hair. Lead researcher I. Zschockel explains, "Though largely determined by heredity, hair thickness is also influenced by various factors such as nutrition." Zschockel added that the study participants began noticing improvements in hair thickness at three months, after which thickness continued to increase.
Source: Kosmetische Medizin, June 2007
