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PloS One (2013) 8(8):e71272

Exercise-induced IL-6, mainly from skeletal muscle, may inhibit pro-inflammatory cytokines like TNF and IL-1 and stimulate anti-inflammatory mediators

doi: 10.1038/srep30483 153 DessenATangJSchmidtHStahlMClarkJDSeehraJet al

Thereby beneficial in lowering acne, melasma, and hyperpigmentation

This decreases the darker eumelanin and increases the lighter pheomelanin, leading to a lighter and fairer skin tone
