Abstract:
The neck skin texture is one of aging indicators. The ideal topical antiaging neck cream is challenging because of its biophysical specificities. N-acetyl glucosamine is a precursor for hyaluronic acid biosynthesis in the body which can preserve the hydration and elasticity of the skin. From its properties, glucosamine could be expected to accelerate wound healing, improve skin hydration, and possibly be used as an antiwrinkle treatment. The formulated topical cream for improving aging neck texture was evaluated for efficacy and safety. This study aims to evaluate the efficacy of Topical 8% N-acetyl glucosamine cream in the treatment of neck skin wrinkle, laxity and crepiness in Thai women over a 16-week treatment period. Thirty-six Thai females age 40-65 with moderate neck wrinkle applied the test cream for 16-week study period. Aging neck assessment were conducted at week 0, 4, 8, 12, 16 by dermatologists. Subjects were photographed and measured neck skin hydration, elasticity and wrinkle scores. Satisfaction assessment for neck skin texture were scored by subjected at week 16. Adverse event was examined every visit. All subjects completed the study. At 16-week visit, Topical N-acetyl glucosamine group is higher reduction rate in mean dermatologist-assessed aging parameter score (-31.29% vs -10.00%), wrinkle score (-11.10% vs -0.04%), and higher improvement in hydration score (+11.40% vs +6.62%) with statistically significant difference. Majority of satisfaction
score at 16 week in N-acetyl glucosamine group show significantly different compare with placebo group with (p < 0.05). No adverse event was occurred during the study. Topical 8% N-acetyl glucosamine is a safe and effective to be an alternative treatment option for mild to moderate neck wrinkle.