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KMID : 1145120200180040447
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Asian Journal of Beauty and Cosmetology
2020 Volume.18 No. 4 p.447 ~ p.460
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Effect of Applying Various Time of Retinol Pretreatment on Improve Skin after Herbal Peeling
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Oh Seong-Eun
Chang Chang-Gok
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Abstract
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Purpose: Retinol, a vitamin A derivative, is used as a pretreatment by applying it multiple times on the affected skin before herbal peeling to minimize side effects and to heal damaged skin. However, the effects of retinol as a pretreatment are unknown. Thus, this study evaluates the effects of retinol as a pretreatment for skin improvement.
Methods: Middle-aged women were recruited as participants in this study and were divided into four groups, namely, without retinol pretreatment (G1), retinol pretreatment for 4 weeks (G2), 8 weeks (G3), and 12 weeks (G4). The test was conducted 15 times. Before peeling, participants in the G1, G3, and G4 groups were pretreated with retinol cream on their skin for the indicated time periods, whereas those in G1 did not receive the pretreatment. Skin erythema index, moisture content, transepidermal water loss (TEWL), and roughness were measured before the experiment, on the peeling day, and 1 and 2 weeks after peeling.
Results: Significant differences in the skin erythema index, moisture content, TEWL, and roughness were found between the pretreated and non-pretreated groups. The pretreated groups experienced higher moisture content, lesser erythema, lower TEWL, and lesser roughness than the non-treated group. In addition, G4 had a larger improvement than G3, and G3 had a larger improvement than G2.
Conclusion: The results showed that long-term use of retinol is effective in relieving erythema, dehydration, and skin irritation.
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KEYWORD
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Retinol, Pretreatment, Various time, Herbal peeling, Skin improvement
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