The client encountered problems with uneven application and slow absorption in the development of face masks and eye serums. In particular, eye serums remained on the skin's surface for a long time, hindering the full penetration of active ingredients, resulting in a poor user experience and impacting repeat purchases. The client wanted products that could absorb quickly while maintaining skin's suppleness.

It was recommended to use low-molecular-weight hyaluronic acid powder in the formula to significantly improve skin permeability, allowing moisture to quickly penetrate the stratum corneum and lock in hydration for a longer period. Simultaneously, by optimizing dissolution and emulsification technologies, hyaluronic acid was evenly distributed throughout the formula, ensuring the product was smooth, easy to spread, non-greasy, and non-sticky during application. Furthermore, to improve the user experience of the eye serum, formulation guidance was provided to ensure a gentle formula suitable for sensitive skin, balancing safety and effectiveness.

After optimization, the face mask and eye serum applied smoothly and absorbed quickly, leaving skin immediately feeling soft and hydrated, with a noticeable reduction in fine lines around the eyes. The client reported a significantly improved user experience, leading to increased positive customer feedback. The R&D team stated that the low-molecular-weight hyaluronic acid solution not only improved the product's texture but also enhanced the stability of its efficacy.