Healthy adults
Conditions
Interventions
Apply 4 gram of the certain whitening essence 1-1 to the whole face, twice a day (morning and evening) for 8 weeks.
Apply 4 gram of the certain whitening essence 2-1 to the whole face, twice a day (mo
Sponsors
Kao Corporation
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1.Healthy female aged from 35 to 49 years old. 2.Persons who can agree to participate in the study voluntarily in writing. 3.Persons who use UV care productsn all year round. 4.Persons who can agree to be taken several pictures including their face. 5.Persons who has no trouble in the skin of test sites (face, hands and upper arms).
Exclusion criteria
Exclusion criteria: 1.Persons who take supplements or drinks that claim to have some whitening effects. 2.Persons who use cosmetics containing whitening ingredients or take medicines claiming whitening function. 3.Persons who have scratches or eczema on their face. 4.Persons who have a lot of acne or acne scars on their face. 5.Persons who participated within the past 6 months in a survey or clinical trial which affects the results of this study. 6.Subjects who have some disease that may affect the results of this study. 7.Persons who have allergic symptoms such as pollinosis on their face. 8.Persons who have skin symptoms such as atopic dermatitis and contact dermatitis. 9.Persons who tend to be induced skin inflammation by using of cosmetics or external stimuli such as changing temperature. 10.Persons who have symptoms of menopause. 11.Persons who are pregnant, may be pregnant or wish to become pregnant during the test period. 12.Persons who experienced medical cosmetic treatment. 13.Persons who is judged as unsuitable for the study by the investigator for other reasons.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Evaluation of the skin brightness or melanin amount after continuous use of each whitening products for 8 weeks. | — |
Secondary
| Measure | Time frame |
|---|---|
| Evaluation of the facial skin color and appearance after continuous use of each whitening products for 8 weeks. | — |
Countries
Japan
Contacts
Public ContactHiroki Yanagisawa
Kao Corporation R&D Skin Care Products Research
Outcome results
None listed