Rodan Katie, Fields Kathy, Falla Timothy J
Rodan + Fields, San Francisco, CA, USA.
Clin Cosmet Investig Dermatol. 2017 Jan 4;10:3-9. doi: 10.2147/CCID.S125438. eCollection 2017.
Acne vulgaris (acne) is the most common skin disorder producing physical and emotional scars that can persist for years. An estimated 83% of acne sufferers self-treat, but there is lack of studies documenting the effectiveness of over-the-counter (OTC) acne treatment products.
This study was conducted to determine the effectiveness of an OTC, 3-step, anti-acne skincare regimen in treating acne and improving the appearance of red/inflamed facial skin.
This 6-week, open-label clinical study included both genders aged between 12 and 35 years with mild-to-moderate acne. All subjects were required to have an acne score of 1-3 (Cook's acne grading scale: 0=clear to 7=very severe) and a moderate redness score of ≥2 (0=none and 4=severe). Subjects completed a 3-step facial treatment regimen every morning and evening using an OTC cleanser, toner, and acne treatment. Evaluations for effectiveness and safety were done at baseline and weeks 2, 4, and 6 using digital photographs (Visia-CR digital imaging system) of the face and analyzed using Image-Pro software for the grading of acne, red/inflamed skin, and the number and type of lesions.
Thirty subjects (12 males and 18 females) were enrolled (mean age of 19 years; range 12-34 years). This skincare regimen resulted in statistically significant improvements in acne grading scores after 2 weeks of use, with mean scores continuing to improve after 4 and 6 weeks of use (<0.001). Statistically significant improvements from baseline in red/inflamed skin, open and closed comedones, and papules were detected at all time points and for nodules at week 6, compared to their respective baselines (<0.05).
This clinical study demonstrated the effectiveness of an OTC 3-step, anti-acne skincare regimen in significantly improving acne and the overall appearance of skin in the majority of subjects who had mild-to-moderate acne.
寻常痤疮是最常见的皮肤疾病,会产生身体和情感上的疤痕,且可能持续数年。估计83%的痤疮患者会自行治疗,但缺乏关于非处方(OTC)痤疮治疗产品有效性的研究记录。
本研究旨在确定一种非处方的三步抗痤疮护肤方案在治疗痤疮以及改善面部皮肤发红/发炎外观方面的有效性。
这项为期6周的开放标签临床研究纳入了年龄在12至35岁之间、患有轻至中度痤疮的男性和女性。所有受试者的痤疮评分为1 - 3分(库克痤疮分级量表:0 = 无痤疮至7 = 非常严重),且中度发红评分为≥2分(0 = 无发红至4 = 严重发红)。受试者每天早晚使用一种非处方洁面乳、爽肤水和痤疮治疗产品完成三步面部治疗方案。在基线以及第2、4和6周时,使用面部数码照片(Visia - CR数码成像系统)进行有效性和安全性评估,并使用Image - Pro软件分析痤疮、发红/发炎皮肤以及皮损的数量和类型分级。
招募了30名受试者(12名男性和18名女性)(平均年龄19岁;范围12 - 34岁)。使用该护肤方案2周后,痤疮分级评分有统计学意义的改善,使用4周和6周后平均评分持续改善(<0.001)。与各自基线相比,在所有时间点均检测到发红/发炎皮肤、开放性和闭合性粉刺以及丘疹有统计学意义的改善,第6周时结节也有改善(<0.05)。
这项临床研究证明了一种非处方的三步抗痤疮护肤方案在显著改善大多数轻至中度痤疮受试者的痤疮及皮肤整体外观方面的有效性。