Healthy volunteers
Conditions
Interventions
Intake of test food (high dose) for 12 consecutive weeks
Intake of test food (low dose) for 12 consecutive weeks
Intake of placebo for 12 consecutive weeks
Sponsors
TTC Co., Ltd.
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1. Females between the ages of 45 and 64 2. Subjects who are aware of skin dryness, elasticity and lower level of Stratum corneum water content
Exclusion criteria
Exclusion criteria: 1. Subjects who usually take some drugs, functional foods, or cosmetics including active ingredients 2. Subjects who usually take some drugs, functional foods, etc. which would affect skin condition 3. Subjects who got some cosmetic surgery, or hormone therapy which would affect the target skins 4. Subjects who plan to have ultraviolet exposure within a month before the screening test 5. Subjects who wash the body providing strong skin irritation 6. Subjects who usually use bath additives 7. Subjects who have the wounds or inflammatory diseases which would affect the target skins 8. Subjects who have the wounds or inflammatory diseases which would affect the target skins 9. Subjects who might have allergic symptoms (pollinosis, etc.) and use medicines in this study 10. Subjects who feel skin roughness on the target skins around a menstruates 11. Subjects who employ on a pre-dawn shift or on night duty more than 2 times in this study 12. Subjects who are plan to go overseas 13. Subjects who have asthma or would have asthma during this study 14. Subjects who have severe diseases or diseases which affect a secretion of sex hormones 15. Subjects who are at risk of having allergic reaction related to this study 16. Subjects who have diseases which affect this study 17. Subjects who judged as unsuitable based on the results of clinical and physical examination 18. Subjects who participated other clinical trial within 3 months prior to this study or plan to participate other clinical trial after acquiring consent to this study 19. Pregnant or lactating women 20. Subjects who are judged as unsuitable for this study by the principal investigator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Stratum corneum water content (4, 8, and 12 weeks after a dietary supplement intake) | — |
Secondary
| Measure | Time frame |
|---|---|
| Transepidermal water loss, skin elasticity, collagen score, and questionnaires (4, 8, and 12 weeks after a dietary supplement intake) | — |
Countries
Japan
Contacts
Public ContactTakashi Nakagawa
TTC Co., Ltd Clinical Research Planning Department
Outcome results
None listed