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Evaluation of skin condition improvement by ingestion of the test product

Evaluation of skin condition improvement by ingestion of the test food: a randomized, placebo-controlled, double-blind, parallel-group comparison study - Evaluation of skin condition improvement by ingestion of the test food

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000057287
Enrollment
52
Registered
2026-06-19
Start date
2025-03-17
Completion date
Unknown
Last updated
2026-09-14

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

Conditions

N/A(healthy adults)

Interventions

Oral intake of test food once daily for 8 weeks Oral intake of placebo food once daily for 8 weeks

Sponsors

Shiba Palace Clinic
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Healthy Japanese males and females aged 35 to 59 years old 2) Subjects who feel dry skin 3) Subjects who feel loss in skin elasticity 4) Subjects who feel rough skin

Exclusion criteria

Exclusion criteria: 1) Subjects who spend a lot of time outdoors or exposed to ultraviolet rays in their daily lives (e.g., those who work night shifts or day/night shifts, those who engage in sales or delivery work, etc.) 2) Subjects who take or apply medications (e.g., medicines with moisturizing effects) that may affect test results 3) Subjects who regularly use specified health foods, functional foods (e.g., food containing sodium hyaluronate, glucosylceramide, astaxanthin), or health foods (including supplements) that may affect the improvement of skin quality and who are unable to discontinue from the time consent is obtained 4) Subjects who have undergone facial beauty treatments or beauty clinics within 2 weeks prior to the start of the examination 5) Subjects who are taking or will take medication for hay fever 6) Subjects who can be allergic to the test food 7) Subjects who may show allergic symptoms to any of the ingredients in the test product 8) Subjects with asthma 9) Subjects who are a smoker 10) subjects who cannot intentionally refrain from direct exposure to the sun, such as sunburns and long-term travel between pre-inspection and the end of the examination 11) Subjects who have irregular lifestyle habits, such as waking and sleeping times that vary by 4 hours or more depending on the day of the week 12) Pregnant or possibly pregnant, and lactating mothers 13) Subjects who have skin allergy symptoms or skin hypersensitivity 14) Subjects who have chronic inflammation of the skin such as atopic dermatitis 15) Subjects who have chronic diseases and regularly use drugs 16) Subjects who have remarkable abnormality on skin condition of the test area 17) Subjects who participate in other clinical trials

Design outcomes

Primary

MeasureTime frame
Skin elasticity (Week 0, Week 8)

Secondary

MeasureTime frame
Skin moisture content Skin blood flow Subjective skin evaluation (Week 0, Week 8)

Countries

Japan

Contacts

Public ContactYoshiaki Inoue

Hayashikane Sangyo Co., Ltd. functional food division

yinoue@hayashikane.com083-267-0094

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Sep 19, 2026