Exploratory research on the squalene concentration in the skin after cutaneous administration and/or oral intake of squalene

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-jRCT1030230749

Enrollment

Registered

2024-03-28

Start date

2024-03-28

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

normal skin

Interventions

Cutaneous administration and oral intake of squalene Collection of sebum and stratum corneum on the forearm

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Aged 18 to 70 years old 2. Subjects who agree to participate in this study

Exclusion criteria

Exclusion criteria: 1. Subjects who have been developed with allergies to shark liver oil or soft capsules 2. Subjects with skin irritation (including contact dermatitis, atopic dermatitis) 3. Subjects with skin disease or scraped skin on forearm 4. Subjects with pregnancy or already taking squalene 5. Subjects who are judged as unsuitable for participation in this study

Design outcomes

Primary

Measure	Time frame
Concentration of squalene in sebum and stratum corneum	—

Contacts

Public ContactNaoto Tatewaki

Nissei Marine Industrial Co., Ltd.

nm-tate@nissei-marine.co.jp+81-3-3376-5171

Outcome results

None listed

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