{Reference Type}: Journal Article
{Title}: Clinical Safety and Efficacy Evaluation of a Dissolving Microneedle Patch Having Dual Anti-Wrinkle Effects With Safe and Long-Term Activities.
{Author}: Shin JY;Han D;Yoon KY;Jeong DH;Park YI;
{Journal}: Ann Dermatol
{Volume}: 36
{Issue}: 4
{Year}: 2024 Aug
{Factor}: 0.722
{DOI}: 10.5021/ad.23.136
{Abstract}: <B>BACKGROUND: </B>Anti-aging products are widely used, but the desire for safe and more efficient anti-aging products continues to increase. Dissolving microneedle patches (MNPs) have provided a more efficient transdermal drug delivery solution. MNP is a promising candidate for developing better anti-aging products.<BR><B>OBJECTIVE: </B>To develop a more efficient anti-aging MNP product, we fabricated a dual anti-wrinkle microneedle patch (named DA-MNP) using droplet extension (DEN®) technology and evaluated its skin puncture ability, safety, and efficacy through clinical studies.<BR><B>METHODS: </B>A DA-MNP comprising hyaluronic acid (HA) polymer backbone, acetyl octapeptide-3, and L-ascorbic acid 2-glucoside and sodium cyclic lysophosphatidic acid was fabricated using DEN® technology. Placebo MNPs comprising only HA were also fabricated. Twenty-four healthy subjects were enrolled in this comparative clinical study. The DA-MNP or placebo MNP was separately applied to the left and right eyes of subjects for overnight. Assessments, including wrinkle improvement, trans-epidermal water loss (TEWL), eye lifting and adverse effects were evaluated at each scheduled visit day for 28 days.<BR><B>RESULTS: </B>The DA-MNP showed mechanical strength enough for puncturing the stratum corneum. Compared to placebo MNP group, the DA-MNP treated group showed an effective eye wrinkles improvement and better anti-aging of skin, with reduced TEWL, enhanced skin elasticity and lifting, and no adverse effects.<BR><B>CONCLUSIONS: </B>The present study demonstrated that the fabricated DA-MNP exhibited fast acting on deep wrinkles and enhanced anti-aging efficacy, with no skin safety concern. Thus, this DA-MNP may serve as a new transdermal delivery solution for skin wrinkling and aging.