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Study of the relationship between skin microbiota and skin condition

Study of the relationship between skin microbiota and skin condition - Study of the relationship between skin microbiota and skin condition

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000051436
Enrollment
250
Registered
2023-07-01
Start date
2023-07-18
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

Adult

Interventions

None listed

Sponsors

Yamada Bee Company, Inc.
Lead Sponsor
Research Center for Immunological Analysis, Inc.
Collaborator

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1) A healthy Japanese females aged 60-69 at the time of consent. 2) Subjects can understand and comply with the rules written in protocol during clinical study period. 3) Subjects whose written informed consent has been obtained.

Exclusion criteria

Exclusion criteria: The following exclusion criteria apply to subjects. 1) Routinely use cosmetics that claim to have an effect on the skin microbiota. 2) With a preexsiting or current condition of skin allergies. 3) Attend a dermatologist or cosmetic dermatologist for skin diseases on the scalp or face. (including those being treated for atopic dermatitis, seborrheic dermatitis, contact dermatitis, psoriasis, athlete's foot on the scalp, etc.) 4) With trauma or inflammation of the scalp or face. 5) Receiving hormone replacement therapy. (estrogen, progesterone preparations (oral, paste, ointment, etc.)) 6) Have got cosmetic surgery which would affect the measuring area within 1 year. 7) Have got special treatment within 1 month. (facial esthetics, epilation etc.) 8) Have an irregular habit because of working at night or working under work-shift form. 9) Drink more than 500 mL of beer equivalent daily. 10) Have been smoking (including electronic cigarettes) for 3 months prior to obtaining consent. 11) Participated in other clinical trial within 1 month. 12) Working at the health food, cosmetics or pharmaceutical company. 13) Deemed inappropriate to participate in this study by the principle investigator.

Design outcomes

Primary

MeasureTime frame
Skin microbiota Water content of stratum corneum Transepidermal water loss Sebum pH Image analysis of facial skin Skin questionnaire

Countries

Japan

Contacts

Public ContactHiroshi Kawabe

Yamada Bee Company, Inc. Yamada Bee Company group Institute for Beauty Science, R&D department

hk1926@yamada-bee.com03-6433-2248

Outcome results

None listed

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