About OKOUCHI SHOICHI
About 法政大 生命科学
About Journal of the Society of Inorganic Materials, Japan
About bath additive
About polysulfide (sulfide)
About calcium compound
About hot spring
About spring investigation
About balneotherapy
About hot spring water
About oxidation-reduction potential
About reducibility
About antioxidation
About senile change
About suppression and control
About skin
About pH dependence
About pharmacological action
About property
About Sulfur
About colloid
About Safety
About elasticity (mechanical property)
About mechanism
About selectivity
About bath additives
About antioxidant action
About melanogenesis inhibiting action
About mechanical property
About antioxidant action
About melanogenesis inhibition
About membrane permeability
About elastic behavior
About formation mechanism
About Sulfur and its compounds
About 硫化カルシウム
About 入浴剤