
Age: 55; Skin Type III
Daily application of Substance SKN, four product system, twice daily.

Age: 41; Skin Type: III
Daily application of Substance SKN, four product system, twice daily.

Age: 37; Skin Type IV
Daily application of Substance SKN, four product system, twice daily.

Age: 33; Skin Type: III
Daily application of Substance SKN, four product system, twice daily.
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