skin whitening function, no disease will be involved
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. People who aged between 18 to 40 years and dissatisfied with the skin color, and the skin dark or dry was not cause by skin diseases. 2. People who has not used any whitening product for three monthes, at the before entring the trails. 3. People who understand the Informed consent and signed it with voluntary.
Exclusion criteria
Exclusion criteria: 1. People who had the history of skin diseases or cosmetic allergy. 2. Woman who pregancy or lactation. 3. People who has the system diseases. 4. People who is taking other clinic test. 5. People who is consider inadequacy for the test by researcher.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| skin color;skin pigment; | — |
Secondary
| Measure | Time frame |
|---|---|
| melanin index of facial skin;red pigment index of facial skin; | — |
Countries
China
Contacts
Beijing Research Institute of Nutrition Resources