Therefore, the present study is designed to contribute to the body of literature by investigating the effect of 12-weeks of lutein supplementation on multiple parameters of skin health and appearance in healthy women.
This is a randomized, double-blind, placebo-controlled, parallel twelve-week study of the performance of an oral test product to evaluate the effects of twelve weeks of lutein supplementation on skin health and appearance in healthy women. A seven-day washout period will precede the evaluation period. The subjects in each cohort will use consume one softgel of their assigned test product (treatment or placebo) daily in the morning with breakfast for 12 weeks. Changes in skin condition and appearance as well as blood chemistry will be assessed using results from expert visual grading, instrumental assessments, skin and blood assays and subjective questionnaire responses. Subjects will be recruited during the winter season to account for seasonal variations of skin parameters. Evaluation points will occur pre-application (Baseline; Week 0) and after 42 and 84 days of use (D42, D84; Week 6, Week 12). Data will be collected on the following outcomes: 1\. Skin Hydration 2. Skin texture/smoothness 2. Reduction of facial fine lines and wrinkles 3. Skin elasticity and firmness 4. Sagging skin, dry skin, skin tone, appearance from expert clinical grading and subjective questionnaire responses. 6\. Skin hydration 7. Skin collagen 8. Skin lipid content. 9. Skin Carotenoids
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
60
Lutein (FloraGLO™) in safflower oil
Safflower Oil
International Research Services, Inc.
Port Chester, New York, United States
Objective Skin Hydration
Corneometer Value
Time frame: ANOVA including weeks 6 and 12
Subjective Skin Hydration
Subjective Questionnaire Visual Analog Scale
Time frame: ANOVA including weeks 6 and 12
Objective Skin Texture
Expert clinical grading
Time frame: ANOVA including weeks 6 and 12
Subjective Skin Texture
Subjective Questionnaire Visual Analog Scale
Time frame: ANOVA including weeks 6 and 12
Objective Facial Lines and Wrinkles
Expert clinical grading
Time frame: ANOVA including weeks 6 and 12
Subjective Facial Lines and Wrinkles
Subjective Questionnaire Visual Analog Scale
Time frame: ANOVA including weeks 6 and 12
Objective Sagging skin, dry skin, skin tone, and overall appearance
Expert clinical grading
Time frame: ANOVA including weeks 6 and 12
Subjective Sagging skin, dry skin, skin tone, and overall appearance
Subjective Questionnaire Visual Analog Scale
Time frame: ANOVA including weeks 6 and 12
Objective Skin elasticity
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Expert clinical grading
Time frame: ANOVA including weeks 6 and 12
Subjective Skin elasticity
Subjective Questionnaire Visual Analog Scale
Time frame: ANOVA including weeks 6 and 12
Skin Collagen Ultrasound
Ultrasound
Time frame: ANOVA including weeks 6 and 12
Skin Collagen SIAsScope
SIAsScope assessments
Time frame: ANOVA including weeks 6 and 12
Skin Lipids
HPLC of tape strips
Time frame: ANOVA including weeks 6 and 12
Skin Carotenoids
Total carotenoid concentration
Time frame: ANOVA including weeks 6 and 12