Healthy adults
Conditions
Interventions
None listed
Sponsors
Kao Corporation
Market Development Research
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: Healthy females in her 20s living near Tokyo Subjects who have no medical condition at the test site. Subjects who can cooperate with measurement and photograph. Subjects with un-smoking. Subjects who (or whose family member) are not working for other companies in the same industry Subjects who can understand the risk of UV irradiation of this test. Subjects who can fully understand the contents of this test.
Exclusion criteria
Exclusion criteria: Subjects with abnormal skin on the test site Subjects who go to medical institution with skin disease Subjects with atopic skin or skin that is prone to cosmetic trouble Subjects taking drugs that affect photosensitivity Subjects who have had abnormal reactions to sunlight Subjects with phobia of the dark or closed place Subjects who may be pregnancies during the study period Subjects who may lactate during the study period. Subjects deemed inappropriate to participate in this study by the principle investigator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Visual score Ultraweak photon emissions in the skin Stratum corneum water content Transepidermal water loss Stratum corneum flexibility Skin viscoelasticity Skin color Intercellular lipid packing Skin shape Amount of sebum, composition of sebum Composition of stratum corneum protein | — |
Secondary
| Measure | Time frame |
|---|---|
| Questionnaire of skin consciousness | — |
Countries
Japan
Contacts
Public ContactKatsuya Takeda
Kao Corporation Skincare Research
Outcome results
None listed