PCA Skin Hyaluronic Acid Overnight Mask 51g

The PCA Skin Hyaluronic Overnight Mask is a hydration-focused leave-on treatment designed to replenish moisture levels while the skin undergoes natural overnight renewal processes. The formulation uses hyaluronic acid to attract and retain water within the skin, helping maintain hydration balance and improve the appearance of smoothness and suppleness. Overnight application allows ingredients to remain in prolonged contact with the skin, supporting barrier function and reducing moisture loss that can occur during sleep. Rather than functioning as an exfoliating treatment, the mask focuses on conditioning and replenishment, helping skin appear refreshed and more comfortable by morning when used consistently within an evening skincare routine. Last reviewed: February 2026

The mask works by combining multiple forms of hyaluronic acid with supportive ingredients such as niacinamide and panthenol to help attract moisture and reinforce barrier function overnight. Hyaluronic acid acts as a humectant, drawing water toward the skin’s surface, while niacinamide helps support skin balance and improve the appearance of tone. Panthenol contributes soothing and conditioning benefits that help maintain hydration comfort. Together, these ingredients help reduce overnight dehydration and support the skin’s natural renewal cycle. The leave-on format allows gradual absorption throughout the night, promoting sustained hydration rather than short-term surface moisture. Last reviewed: February 2026

Hyaluronic acid masks primarily support hydration balance by helping the skin retain moisture, which can improve the appearance of fine lines associated with dryness. Well-hydrated skin reflects light more evenly, contributing to a smoother and more radiant appearance. Maintaining hydration also supports barrier function, which helps protect the skin from environmental stressors and moisture loss. Regular use may improve overall skin comfort, suppleness, and resilience, particularly during periods of dryness or seasonal change. Benefits develop gradually with consistent use as part of a routine that includes gentle cleansing and daytime sun protection. Last reviewed: February 2026

The mask is typically applied two to three times per week as the final step of an evening skincare routine, although frequency may be adjusted depending on hydration needs. Individuals experiencing dryness or environmental stress may use the mask more regularly to maintain moisture balance. Applying it after serums helps seal hydration and support barrier function overnight. Because the formulation focuses on replenishment rather than exfoliation, it can be incorporated consistently without overstimulating the skin. Monitoring skin response and adjusting usage ensures the treatment remains supportive and comfortable within a balanced routine. Last reviewed: February 2026

The formulation is generally suitable for all skin types, including dry, combination, and sensitive skin, due to its hydration-focused and non-exfoliating design. Lightweight humectants provide moisture without heaviness, making it appropriate even for skin prone to imbalance. Supporting ingredients help reinforce barrier function while maintaining hydration comfort, which is beneficial across different skin conditions. Individuals with oily or combination skin may adjust frequency to prevent excess layering, while dry skin types may benefit from more regular use. Patch testing is recommended when introducing any new product to ensure compatibility with individual skin responses. Last reviewed: February 2026