Skin Anti-Aging Efficacy of a <i>Lactobacillus plantarum</i> GT-17F Fermented <i>Dendrobium officinale</i> Ingredient: A Randomized, Double-Blind, Placebo-Controlled Clinical Study

Abstract

We previously found that fermented extract of Dendrobium officinale using Lactobacillus plantarum GT-17F has a stronger antioxidant effect, especially in free radical scavenging. The result provided a basis for further studies to evaluate the effectiveness of fermented D. officinale in preventing UV-mediated damage and photoaging in humans. Therefore, in this study, we aimed to assess the anti-aging efficacy of D. officinale fermented with GT-17F strain in a clinical trial, which was conducted as a double-blind, placebo-controlled, randomized parallel-group comparative study with 99 volunteers with visible wrinkles. During the study, subjects were instructed to apply one pump of each essence, which contains fermented, unfermented, or no D. officinale extract, evenly to their face, both in the morning and evening, following their cleansing routine. At 28 days post-treatment, compared to baseline, subjects in the fermented extract group demonstrated significant improvements in stratum corneum water content, skin elasticity, skin glossiness, wrinkle area and ratio, erythema area, and erythema area ratio. In contrast, the unfermented extract group showed a significant difference only in improving erythema index levels in the skin. This comprehensive study has rigorously investigated the anti-aging effects of D. officinale and its fermented version on human skin, highlighting a notable contribution to dermatological research.

Keywords

• lactic acid bacteria
• <i>Lactobacillus plantarum</i>
• medicinal herbs
• <i>Dendrobium officinale</i>
• skin anti-aging
• clinical study