A home use test to verify the ceramide retention capacity of shampoos

A home use test to verify the ceramide retention capacity of shampoos - A home use test of shampoos

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000037998

Enrollment

Registered

2019-09-13

Start date

2019-09-17

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy adults

Interventions

Use 2 kinds of shampoo on head once a day for 4 weeks

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: -Healthy males and females who work in Kao Sumida office -Subjects who have consciousness of drying sensitive skin -Subjects who can participate in this study for 28 uninterrupted days -Subjects who can accommodate restrictions (prohibition of hair coloring, bleaching, perm in a week before the day of Lab Visit) -Subjects who can provide consent on a voluntary basis before this study starts

Exclusion criteria

Exclusion criteria: -Subjects with suspected skin allergy, cutaneous hypersensitivity -Subjects who could cause skin allergy by shampoo -Subjects with external injury, surgical treatments -Subjects with atopic dermatitis, seborrheic dermatitis - Subjects with highly exposed to sun light Subjects whose hair was chemically treated in a week before the start of this study -Pregnancies -Subjects deemed inappropriate to participate in this study by the principle investigator

Design outcomes

Primary

Measure	Time frame
Evaluation of the amount change of ceramide in the scalp stratum corneum before and after use of shampoos for 4 weeks	—

Countries

Japan

Contacts

Public ContactAtsuko Ebato

Kao Corporation Hair Care Products Research

ebato.atsuko@kao.com+81-3-5630-9872

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026