Background: Recent advancements in laser-assisted drug delivery have emphasized the importance of post-laser use of active ingredients.
Aims: We evaluated the effect of topical post-laser treatment with adipocyte-derived stem cell-containing medium (ADSC-CM) in combination with niacinamide through a double-blind, randomized, vehicle-controlled study.
Patients/methods: Twenty-five patients with aging skin underwent ablative fractional laser (AFL) treatment on both sides of the face for skin rejuvenation. Moisturizers with or without ADSC-CM plus 2% niacinamide was applied to the designated sides of faces for 3 weeks. The wrinkle and the melanin indices were assessed using a specialized digital photography analyzer. Additional in vitro assays were performed.
Results: The wrinkle index, melanin index, patient satisfaction score, and the investigator's global esthetic improvement scale (GAIS) after use of ADSC-CM plus niacinamide were significantly higher than after use of the vehicle cream. The in vitro UVB irradiation assays with human keratinocytes showed decreased levels of pro-inflammatory cytokines upon incubation with ADSC-CM plus niacinamide, and the cell scratch assay displayed decreased MMP-1 and MMP-2 expression as well as increased Type 1 collagen expression.
Conclusions: We demonstrated that post-laser topical application of ADSC-CM in combination with niacinamide has anti-aging effect on skin.
Keywords: anti-aging; laser therapy; mesenchymal stem cells; niacinamide; rejuvenation.
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