Evaluation of neck wrinkle improvement by liquid containing retinol palmitate

Evaluation of neck wrinkle improvement by liquid containing retinol palmitate :a randomized, double blind, placebo-controlled study - Evaluation of neck wrinkle improvement by liquid containing retinol palmitate

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000042403

Enrollment

Registered

2020-11-17

Start date

2020-11-17

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 adult female

Interventions

One group uses the test article for 26 weeks The other group uses placebo for 26 weeks

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1. Subjects whose wrinkle class in the outer corner is 3 to 5 2. Subjects with moderate wrinkles on the neck

Exclusion criteria

Exclusion criteria: 1. Subjects with cosmetic allergies 2. Subjects who are pregnant or lactating 3. Subjects with inflamed or scraped skin on face 4. Subjects who are judged as unsuitable for the study by the investigator for the other reason

Design outcomes

Primary

Measure	Time frame
image evaluation	—

Secondary

Measure	Time frame
3D analysis	—

Countries

Japan

Contacts

Public ContactTakeshi Kaneko

Japan Clinical Trial Association N.A.

info@yakujihou.org0364574666

Outcome results

None listed

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