Exploratory Study to Evaluate the Application of NLAC Cream in Adults With Plaque Psoriasis

Psoriasis is a chronic and immune mediated skin disorder that presents with plaques of thickened, scaly skin. Up to 71% patients suffer from psoriasis, leading to high impact on their daily life. Plaque psoriasis is the most common type which causes thick, scaly patches of skin. Although the treatment of moderate-to-severe psoriasis has been improved with the new launched biologics, topical therapies continue to play a key role in the management of mild-to-moderate psoriasis. Up to 80% of patients of psoriasis use topical agents as their first-line therapy, including topical vitamin D analogs, corticosteroids, vitamin A analogs, and anthralin. There are well-documented concerns and limitations with current topical treatments. In this study, we propose a nature lactic acid enriched cream with a high safety profile as an alternative choice for patients with plaque psoriasis. 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 plaque psoriasis by resuming the water-retention ability of skin and rebuilding skin barrier function.