Table 2. Criteria for inclusion and exclusion when recruiting subjects.
Criteria | Terms |
---|---|
Inclusion criteria | • Healthy female aged 35–60 yrs |
• Diagnosed by dermatologists with wrinkle(s) in the Crow’s-feet area, with global photo-damage score between 2 and 6 | |
• Subjects who calculate with Corneometer reading of less than 60 A.U. | |
• Informed of the purpose and the protocol of the study and signed a written informed-consent form | |
• Co-operative and available during the study period | |
Exclusion criteria | • History of allergies to cosmetics, pharmaceutical products, or foods containing ingredients included in the test formulation |
• Diagnosis of any systemic illness that may be aggravated by participation in the study | |
• Use of oral retinoids or oral steroids in the 6 mon prior to initiation of the study | |
• Use of topical retinoids, anti-wrinkle cosmetic products including retinol and/or AHA, or moisture-rich cosmetic products within the 6 mon prior to initiation of the study | |
• Skincare therapy using lasers or peeling within the 6 mon prior to initiation of the study | |
• Current participation in another clinical test, or participation in any type of wrinkle study within the 6 mon prior to initiation of the study | |
• Abnormal liver function or abnormal renal function | |
• Current smoking habit or history of smoking within the past 1 yr | |
• Excessive alcohol intake | |
• Women who had undergone, or planned to undergo, pregnancy or breastfeeding | |
• Blood pressure > 140/90 mmHg or hypertension with intake of a diuretic | |
• Problems with overall findings in blood-test results as determined by a specialist | |
• History of asthma or allergic disease | |
• History of depression, schizophrenia, alcoholism, drug addiction, or mental illness | |
• Current or previous intake of contraceptives, female hormones, obesity drugs, absorption inhibitors, antidepressants, or appetite suppressants | |
• Any condition judged by the investigator to be unsuitable for participation in the study |
A.U., arbitrary units; AHA, alpha hydroxy acid.