Exploratory Study to Evaluate the Application of NLAC Cream in Adults With Atopic Dermatitis

Atopic dermatitis (AD) is the most common chronic inflammatory skin disorder, with a lifetime prevalence of 15-25% in children and 1-3% in adults worldwide. AD is a heterogeneous disease induced by multiple factors, including genetic mutation and environmental risk factors. The main inflammatory mechanism that contributed to AD is the immune response mediated by T helper 2 (Th2) cells. The clinical features of AD, such as recurrent eczematous lesions, IgE-mediated intense itch, and the disruption of skin barrier induced by abnormal epidermal cell differentiation and protein structures, etc., can be attributed to the secretion of Th2 cell-related cytokines. AD is likely to be a lifelong illness with repeated onsets, causing not only physiological discomfort but also psychological distress; hence the quality of life of AD patients is inevitably affected. Lactic acid is a natural moisturizing factor, which exists in healthy skin. It can efficiently prevent water loss from the skin and alleviate allergic reactions caused by dry skin. The moisturized function of lactic acid has made it became a commonly used additive in a wide variety of skincare products, such as lotion, cream, butter and spray. This product is rich in natural lactic acid generated by the fermentation of probiotics, and therefore can relieve skin itching caused by skin dryness, and resume the water-holding capability of the skin by removing abnormally proliferative stratum corneum as well as inducing collagen production. Importantly, this product is a steroid-free product with safety and without any induced adverse effects in use. This product is also can be a promising option other than steroids to be applied for the mitigation of recurrent symptoms in atopic dermatitis by resuming the water-retention ability of skin and rebuilding skin barrier function.