Healthy Japanese subjects
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Subjects who are judged by a doctor to be eligible. 2) Subjects who can confirm 1MED in any of the 6 irradiation fields by MED (Minimal Erythema Dose) judgment. However, if the number of people who meet the conditions exceeds the number to be selected, those who can confirm 1 MED with a smaller irradiation energy will be selected.
Exclusion criteria
Exclusion criteria: 1) Subjects who treatment of illness. 2) Subjects who take medication.(antihistamines, anti-inflammatory agents, analgesics) on a regular basis. 3) Subjects who may show symptoms of skin allergies and skin hypersensitivity. 4) Subjects who are currently visit dermatologist. 5) Subjects who may have blisters due to sunburn. 6) Subjects with extremely thin upper arms. 7) Subjects with predisposition or scars on the medial upper arm of both arms that may affect the results of the test (diseases such as atopic dermatitis and urticarial, inflammation, eczema, trauma, acne, pimples, warts, stain, etc). 8) Subjects who cannot avoid sunburn due to long hours of outdoor work or sports from screening to the end of the test. 9) Subjects who plan to travel abroad or swim in the sea from screening to the end of the test. 10) Smoker. 11) Subjects who have been exposed to artificial ultraviolet rays within the past two months.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| MED (Minimal Erythema Dose) judgment | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Skin tone 2. Melanin amount and redness 3. Transepidermal water loss 4. Skin moisture content 5. Plasma Pentosidine | — |
Countries
Japan
Contacts
Toyo Sugar Refining Co., Ltd. Research & Development Department