Not applicable (Healthy adults)
Conditions
Interventions
Participants will apply the booster serum twice daily (morning and evening) to the entire face after cleansing. After application, they will perform their usual skincare routine. The intervention peri
Sponsors
Rainmakers Co., Ltd.
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: To explore changes in skin condition following cosmetic use in healthy adult males and females.
Exclusion criteria
Exclusion criteria: Individuals with a known history of allergy to any ingredients of the investigational products. Individuals with severe skin diseases (e.g., severe facial eczema, active skin infections). Pregnant or breastfeeding women, or those highly likely to be pregnant (according to institutional policy). Individuals planning to undergo medical or cosmetic facial procedures (e.g., laser treatment, chemical peeling, injections) during the study period. Individuals judged inappropriate for participation by the principal investigator.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change from baseline to Day 28 in facial skin parameters (wrinkles, pores, pigmentation, redness, and skin texture) assessed by VISIA image analysis | — |
Secondary
| Measure | Time frame |
|---|---|
| Change from baseline to Day 28 in dermoscopic skin microstructure findings Change from baseline to Day 28 in subject-reported skin condition scores assessed by questionnaire | — |
Countries
Japan
Contacts
Public ContactMitsuki Irie
Rainmakers Co., Ltd. New Business Development Department
Outcome results
None listed