Healthy adults
Conditions
Interventions
After exposure to 20C, 40% RH for 120 minutes, subjects use test product A. With a washout period for more than one week between the crossover, subjects use test product B after exposure to 20C, 40% R
Sponsors
Kao Corporation
Eligibility
Sex/Gender
Male
Inclusion criteria
Inclusion criteria: 1.Informed consent provided 2.Able to follow the instruction of the study team
Exclusion criteria
Exclusion criteria: 1.Subjects with skin diseases at nose 2.Subjects with chronic illness related to nose 3.Subjects who have skin allergy to drugs, cosmetics, masks, and temperature 4.Subjects who participate in other research or treatment with physical loads that affect this test 5.Claustrophobic subjects 6.Subjects deemed inappropriate to participate in this study by the principle investigator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Indicator of nasal function; rhinomanometry and saccharin clearance time | — |
Secondary
| Measure | Time frame |
|---|---|
| Condition of nose; temperature and humidity in nasal cavity, rheology characteristics of nasal mucus, and the amount of bacteria | — |
Countries
Japan
Contacts
Public ContactYui Hirama
Kao Corporation Biological Science Research
Outcome results
None listed