None listed
Conditions
Interventions
Apply hair growth product to the right side of the head twice a day for 16wks.
Apply hair growth product to the left side of the head twice a day for 16wks.
Apply placebo to the right side of the head
Sponsors
Kao Corporation
Eligibility
Sex/Gender
Male
Inclusion criteria
Inclusion criteria: 1. Japanese male aged 20-59. 2. Those whose hair condition corresponds to II vertex, II, IIa, III vertex, III, IIIa, IV, or IVa according to the Hamilton-Norwood classification. 3. Those who are not using anti hair loss products at the time of recruitment into the study, or who agree to discontinue using them from the time of receiving an explanation of the study.
Exclusion criteria
Exclusion criteria: 1. Those who have allergic reactions to ethanol on the skin. 2. Those who have surgical scars on the head. 3. Those who have skin symptoms such as atopic dermatitis, contact dermatitis, seborrheic dermatitis, etc. on the scalp. 4. Those who have undergone chemical treatment of the hair within the past one month from the time of recruitment. 5. Those who are experiencing acute hair loss or hair falling out in patches. 6. Those whose gray hair ratio exceeds that of black hair when not dyed. 7. Those who are skinhead or short hair less than 4 cm in length. 8. Those who have undergone hair transplantation or hair extension. 9. Those who have used any medicines including hair regrowth agents on the scalp in the past one month. 10. Those who have orally ingested any drug that shows hair regrowth effect in the past one month. 11. Those who regularly take supplements that may have an effect of reducing skin inflammation. 12. Those who regularly take supplements that may improve or prevent hair loss. 13. Those who have a history or current history of serious illnesses such as diabetes, liver disease, renal disease, or cardiac disease. 14. Those who have received any vaccination within 2 weeks prior to the start of participation in the study. 15. Those who are planning to participate in other clinical trials or monitoring surveys during the study period. 16. 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 rate of hair diameter changes and hair root genes before and after 16 weeks of use of test products. | — |
Countries
Japan
Contacts
Public ContactTamaki Hirano
Kao Corporation Hair Care Research Lab.
Outcome results
None listed