Preparation, characterization, and in vitro evaluation of microemulsion based cream formulations for the topical treatment of acne vulgaris

AbstractBy lowering the significant adverse effects of traditional medications, this study intends to create cream formulations based on microemulsions that contain extract from Allium sativum L. for the treatment of acne vulgaris. Characterization experiments were carried out on the developed cream formulations based on microemulsions. Textural profile analysis and spreadability tests were conducted. Furthermore, cell culture studies and toxicity analysis were performed. As a result, the pH and viscosity values of the developed formulations were found between 6.43 ± 0.00 and 6.66 ± 0.01, and between 13.90 ± 0.080 and 137.20 ± 8.02 P, respectively. The highest‐performing empty and loaded cream formulations in terms of spreadability and textural profile analysis were those with the highest beeswax content. The highest‐performing empty and loaded cream formulations in terms of spreadability and textural profile analysis were those with the highest beeswax content. According to the visual physical evaluation of the formulations, it was observed that the developed formulations were neat, smooth, and homogeneous. The optimum formulation developed was non‐cytotoxic, which maintained cell viability by over 90%. Additionally, the skin irritation experiment was also non‐irritant with a relative cell viability of 92.6%. In conclusion, the developed A. sativum extract‐loaded microemulsion‐based cream formulations appear to be promising formulations for the acne vulgaris treatment, without malodors.