None listed
Conditions
Interventions
None listed
Sponsors
Kao Corporation
Eligibility
Sex/Gender
Male
Inclusion criteria
Inclusion criteria: 1. Japanese male aged 20-59 living in the Tokyo area.
Exclusion criteria
Exclusion criteria: 1. Those who have allergic reactions to chemicals, dust, ethanol, pollen, etc. on the skin 2. Those who have skin hypersensitivity 3. Those who have surgical scars on the head 4. Those who have scars or pimples on the face more than 6. 5. Those who have skin symptoms such as atopic dermatitis, contact dermatitis, seborrheic dermatitis on the face 6. Those who have skin symptoms such as atopic dermatitis, contact dermatitis, seborrheic dermatitis, etc. on the scalp 7. Those who will be exposed to sunlight for a long period of time during the period of cooperation in the study 8. Those who have undergone chemical treatment of the hair within the past month from the time of recruitment 9. Those who are experiencing rapid hair loss or hair falling out in patches 10. Those whose hair ratio of gray hair exceeds that of black hair when not dyed 11. Those who are skinhead or short hair less than 4 cm in length 12. Those who have undergone hair transplantation or hair extension, or who use a hair wig that cannot be removed by themselves 13. Those who have used any medicines including hair regrowth agents on the scalp in the past year 14. Those who have orally ingested any drug that shows hair regrowth effect in the past 1 year 15. Those who regularly take supplements that may have an effect of reducing skin inflammation 16. Those who regularly take supplements that may improve or prevent hair loss 17. Those who have a history or current history of serious illnesses such as diabetes, liver disease, renal disease, or cardiac disease 18. Those who have received any vaccination within 2 weeks prior to the start of participation in the study 19. Those who work for a cosmetics company, etc. 20. Those who are planning to participate in other clinical trials or monitoring surveys during the study period 21. Those who is otherwise deemed inappropriate as a research subject by the person in charge of conducting the research.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The relation with the physical property of scalp/facial skin and hair type | — |
Countries
Japan
Contacts
Public ContactTamaki Hirano
Kao Corporation Hair Care Research Lab.
Outcome results
None listed