Carruthers Instruments Inc., Vancouver, British Columbia, Canada.
Alastin Skincare, Inc., Carlsbad, CA, USA.
Aesthet Surg J. 2021 Aug 13;41(9):NP1188-NP1198. doi: 10.1093/asj/sjab161.
Over time human skin thins and loses elasticity; topical treatments attempt to reverse this process.
The aim of this study was to assess the efficacy of TransFORM Body Treatment (TFB) in skin rejuvenation compared to a bland moisturizer on the extensor and volar forearms.
Blinded participants were given 2 products to apply on the designated forearms with follow-up at 4, 8, and 12 weeks. Measurements included skin thickness, photography, dermatopathology, cutaneous elasticity determined by 2 different methods, and patient-reported outcomes. All were compared to baseline.
Changes between bland moisturizer and TFB were recorded for the following parameters. (1) Roughness: extensor -0.09 mm for bland moisturizer and -0.26 mm for TFB (P = 0.174); volar 0.01 mm for bland moisturizer and -0.23 mm for TFB (P = 0.004). (2) Recoil velocity: volar -56°/sec for bland moisturizer and -24°/sec for TFB (P = 0.61); extensor -95°/sec for bland moisturizer and -63°/sec for TFB (P = 0.57). Retraction speed: volar -3.25 ms for bland moisturizer and -20.08 ms for TFB (P = 0.33); extensor -2.17 ms for bland moisturizer and -10.83 ms for TFB (P = 0.66). Histologically, TFB resulted in an increase in mucopolysaccharide content, new collagen, and number of elastin fibers in the papillary dermis. Changes in the Rao-Goldman score were also observed: volar -0.17 for bland moisturizer and -0.33 for TFB (P = 0.25); extensor -0.08 for bland moisturizer and -0.17 for TFB (P = 0.36).
Histology showed production of new collagen and elastin. Quantification of changes in skin thickness, skin retraction speed, and skin recoil velocity showed trends that agree with the visual data.
随着时间的推移,人类皮肤会变薄并失去弹性;外用疗法试图逆转这一过程。
本研究旨在评估 TransFORM Body Treatment(TFB)在手臂伸侧和屈侧的皮肤年轻化方面与无味保湿剂相比的疗效。
对接受 2 种产品治疗的盲法参与者进行指定前臂的随访,随访时间分别为 4、8 和 12 周。测量包括皮肤厚度、摄影、皮肤病理学、通过 2 种不同方法测定的皮肤弹性以及患者报告的结果。所有结果均与基线相比。
记录了无味保湿剂和 TFB 之间的以下参数变化。(1)粗糙度:伸侧-0.09 毫米为无味保湿剂,-0.26 毫米为 TFB(P=0.174);屈侧 0.01 毫米为无味保湿剂,-0.23 毫米为 TFB(P=0.004)。(2)回弹速度:屈侧-56°/秒为无味保湿剂,-24°/秒为 TFB(P=0.61);伸侧-95°/秒为无味保湿剂,-63°/秒为 TFB(P=0.57)。回缩速度:屈侧-3.25 毫秒为无味保湿剂,-20.08 毫秒为 TFB(P=0.33);伸侧-2.17 毫秒为无味保湿剂,-10.83 毫秒为 TFB(P=0.66)。组织学上,TFB 导致粘多糖含量、新胶原蛋白和乳头真皮中弹性纤维数量增加。Rao-Goldman 评分的变化也观察到:屈侧-0.17 为无味保湿剂,-0.33 为 TFB(P=0.25);伸侧-0.08 为无味保湿剂,-0.17 为 TFB(P=0.36)。
组织学显示产生了新的胶原蛋白和弹性纤维。皮肤厚度、皮肤回缩速度和皮肤回弹速度变化的定量分析显示出与视觉数据一致的趋势。