Abstract:
Honey is a natural product which well known for its nourishing and moisturizing properties, making it a popular ingredient in cosmeceutical skincare formulations. In particular, longan flower honey, with its distinctive color and fragrance, has attracted attention for cosmetic applications. This study aimed to develop a sleeping mask formulation using longan flower honey as the key active ingredient and evaluate its moisturizing effects. The formulations containing 0%, 2%, 4%, 6%, 8%, and 10% (w/w) longan flower honey were tested on 20 healthy volunteers aged 20-30 years old. The results revealed that the intensity of the mask's texture, color, and honey scent corresponded to the increasing honey concentrations. All formulations demonstrated good physical stability after centrifugation and freezethaw cycle tests. Moisturizing efficacy tests showed no allergic reactions and a statistically significant (P < 0.05) increase in skin hydration at 1, 2, 3, 4, 5, and 6 hours after application for all formulations. The formula containing 8% honey provided the highest increase in skin hydration (69.38 ± 1.23) followed by the 10% formula (56.46 ± 1.19), showing a statistically significant difference. These findings support the use of longan flower honey as a safe and effective natural ingredient for skincare product development, particularly suited for consumers seeking products formulated with key natural ingredients.