the role of adrenergic beta receptors for skin pigmentation
the role of adrenergic beta receptors for skin pigmentation
the role of adrenergic beta receptors for skin pigmentation
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Evaluation <strong>of</strong> Undecylenoyl Phenylalanine Effect on Facial<br />
Hyper-pigmented Spots in Human Clinical Study<br />
Product<br />
Design<br />
Subject<br />
Measure<br />
• Vehicle moisturizer<br />
• 1% Undecylenoyl phenylalanine containing <strong>for</strong>mula in Vehicle<br />
• 5% Niacinamide containing <strong>for</strong>mula in Vehicle (control)<br />
• Split face, round robin design<br />
• Double blinded, left-right randomized, vehicle controlled<br />
• 8 weeks product treatment period (0, 4, 8 week visits)<br />
• Females having moderate hyperpigmented spots symmetrically on<br />
both sides <strong>of</strong> <strong>the</strong> face<br />
• 25-60 years<br />
• 110 observations per treatment<br />
• Capture facial images followed by computer image analysis <strong>for</strong> spot<br />
area and <strong>skin</strong> color
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