Paper
Two-Step Skincare Regimen Addressing Aging in Three Unique Geographic Locations: A Prospective, Multi-Center, Open-Label Study.
Published Dec 1, 2022 · Joel L Cohen, Melanie D. Palm, B. Biesman
Journal of drugs in dermatology : JDD
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Abstract
BACKGROUND Extrinsic factors including solar radiation and air pollution significantly impact facial skin aging. The efficacy and tolerability of a 2-step skincare regimen consisting of a vitamin C antioxidant serum (VCAS) and a 100% mineral tinted sunscreen moisturizer (TSM) were evaluated in women with hyperpigmented and photodamaged facial skin exposed to beach, mountain, and river-traversed basin city stressors. METHODS This was an institutional review board (IRB)-approved, multi-center, prospective, open-label study involving healthy subjects. Thirty-six females aged 35 to 60 years with Fitzpatrick Skin Types I to V and exhibiting moderate to severe hyperpigmentation and moderate photodamage were recruited. The VCAS was applied to the global face twice-daily (morning and evening), and the TSM was applied in the morning with at least 2 reapplications during daily activity for 12 weeks. Clinical grading with a validated scale, standardized photography, and a self-assessment questionnaire were performed at baseline and weeks 4, 8, and 12. RESULTS Statistically significant improvements were shown in clinically graded efficacy parameters at weeks 4, 8, and 12. Subjects showed an average improvement of 11.7%, 14.9%, and 19.1% in overall photodamage and an average improvement of 19.5%, 23.4%, and 24.5% in clarity/brightness at weeks 4, 8, and 12, respectively. Forehead lines and cheek lines demonstrated clinically significant improvement from baseline to week 12. Both products were well-tolerated and well-perceived by subjects. CONCLUSION The 2-step skincare regimen was well-tolerated and effective in improving extrinsic signs of facial aging induced by solar radiation and air pollution stressors after 12 weeks of use. J Drugs Dermatol. 2023;22(1):16-22. doi:10.36849/JDD.7154.
Non-RCTThe 2-step skincare regimen, consisting of a vitamin C antioxidant serum and a 100% mineral tinted sunscreen moisturizer, effectively improves facial aging caused by solar radiation and air pollution after 12 weeks of use.
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