| Unique ID issued by UMIN | UMIN000060337 |
|---|---|
| Receipt number | R000069021 |
| Scientific Title | Comparative study on the efficacy of skincare ingredients by skin type |
| Date of disclosure of the study information | 2026/01/13 |
| Last modified on | 2026/01/13 15:27:55 |
Efficacy study of the skincare product
Efficacy study of the skincare product
Comparative study on the efficacy of skincare ingredients by skin type
Comparative study on the efficacy of skincare ingredients by skin type
| Japan |
Not applicable
| Not applicable | Adult |
Others
NO
Comparing the efficacy of skincare products between SSL-RNA clusters.
Efficacy
Not applicable
Change in skin surface roughness before and after 4 week use of skincare products
Skin color
Stratum corneum moisture content
TEWL value
Skin surface roughness
Wrinkle score
Melanin index
Hemoglobin index, etc.
Interventional
Parallel
Randomized
Individual
Single blind -participants are blinded
Active
3
Treatment
| Other |
The test product (1) (a commercially available skincare cosmetic) will be applied to the entire face twice daily for four weeks.
The test product (2) (a commercially available skincare cosmetic) will be applied to the entire face twice daily for four weeks.
The test product (3) (a commercially available skincare cosmetic) will be applied to the entire face twice daily for four weeks.
| 35 | years-old | <= |
| 59 | years-old | >= |
Female
1.Female participants aged 35 to 59 years.
2.Individuals who have previously experienced discomfort or adverse skin reactions to skincare cosmetics (*) and consequently discontinued their use.
*Examples include skin redness, stinging or tingling sensations, or acne formation.
3.Individuals who are concerned about wrinkles around the outer corners of the
eyes (crow's feet).
4. Individuals who are not currently using any facial serum (beauty essence).
1.Individuals who have skin conditions such as atopic dermatitis or other dermatological symptoms on the test area (face).
2.Individuals who are pregnant or may be pregnant at the time of obtaining nformed
consent.
3.Individuals who are breastfeeding or plan to breastfeed during the study period.
4.Individuals who are currently visiting a medical institution due to poor hysical
condition or skin disease at the time of recruitment.
5.Individuals who have severe allergies (e.g., hay fever or rhinitis) that may affect the study results.
6.Individuals who regularly take prescription or over-the-counter medications including antibiotics, anti-inflammatory drugs, anti-allergy drugs, sleeping pills, analgesics, hormonal agents, laxatives, or intestinal regulators). Occasional use, about once or twice a month, is acceptable.
7.Individuals who have received cosmetic medical treatments such as peeling or
laser therapy on the face or body within the past six months.
8.Individuals who themselves, or whose family members living in the same
household, are employed in advertising agencies, market research or consulting
firms, mass media, distribution, or in the manufacture of pharmaceuticals,
cosmetics, toiletries, or hygiene products.
9.Individuals who are currently participating, or plan to participate during
this study, in another interventional study (e.g., involving cosmetics or foods)
targeting the facial skin.
10.Individuals who are deemed unsuitable for study participation by the principal investigator for any other reason.
120
| 1st name | Shou |
| Middle name | |
| Last name | Kikuchi |
Kao Corporation
Skin Beauty Products Research Lab.
131-8501
2-1-3, Bunka, Sumida-ku, Tokyo, 131-8501, JAPAN
+81-70-3296-8432
kikuchi.shou@kao.com
| 1st name | Hiroki |
| Middle name | |
| Last name | Yanagisawa |
Kao Corporation
Skin Beauty Products Research Lab.
131-8501
2-1-3, Bunka, Sumida-ku, Tokyo, 131-8501, JAPAN
+81-70-3300-8734
yanaagisawa.hiroki@kao.com
DRC Co., Ltd.
Kao Corporation
Self funding
Human Research Ethics Committee, Kao Corporation
2-1-3 Bunka, Sumida-ku, Tokyo 131- 8501, JAPAN
+81-3-5630-9064
morisaki.naoko@kao.com
NO
| 2026 | Year | 01 | Month | 13 | Day |
Unpublished
120
No longer recruiting
| 2025 | Year | 09 | Month | 17 | Day |
| 2025 | Year | 09 | Month | 17 | Day |
| 2025 | Year | 10 | Month | 28 | Day |
| 2025 | Year | 11 | Month | 18 | Day |
| 2026 | Year | 01 | Month | 13 | Day |
| 2026 | Year | 01 | Month | 13 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000069021