The Purest Solutions Niacinamide 5% + Zinc PCA 1% Intensive Pore Tightening & Lightening Facial Serum is a skincare product designed to address various skin concerns, primarily aimed at oily skin and those with pore problems, as well as acne-prone individuals. It is formulated by combining zinc PCA & niacinamide, salix purpurea bark extract & amur mushroom tree extract. Niacinamide is known for its ability to reduce hyperpigmentation and uneven skin tone, which can result in a brighter complexion. It helps in strengthening the skin's natural barrier, which is crucial for overall skin health. It can regulate sebum (oil) production, making it suitable for oily skin types. It can protect the skin from photoaging, which is caused by UV radiation, and help maintain skin elasticity. Zinc PCA helps balance sebum secretion, making it useful for controlling oiliness in the skin. It can also regulate the skin's microbiome, which is essential for healthy skin. This ingredient participates in the skin's moisture retention and energy metabolism processes, contributing to overall skin health. Salix Purpurea Bark Extract (Willow bark extract) has properties like salicylic acid, making it effective in exfoliating the skin and preventing clogged pores. It has soothing properties that can be beneficial for irritated or sensitive skin. Willow bark extract also has antibacterial properties, which can be helpful for acne-prone skin. Amur mushroom tree extract (Phellodendron Amurense Bark Extract) is known for its antibacterial and antioxidant abilities, which can help protect the skin from environmental stressors. It has been traditionally used in skincare in Japan, Korea, and China for its skin-regenerating properties. In summary, this serum combines various active ingredients to provide a comprehensive solution for oily skin types and individuals dealing with pore issues and acne. It aims to improve skin texture, balance sebum production, reduce hyperpigmentation, strengthen the skin barrier, and offer antibacterial and antioxidant benefits.