Polyaminopropyl biguanide is widely used as a disinfectant and preservative due to its broad-spectrum antimicrobial properties. It is commonly applied in personal care products such as contact lens solutions, where it effectively prevents microbial contamination. In the healthcare sector, it is utilized in wound care products to reduce the risk of infections and promote healing. Additionally, it is incorporated into cosmetics and skincare formulations to extend shelf life by inhibiting bacterial and fungal growth. Its use in water treatment systems helps control microbial populations in pools and industrial water supplies. The chemical’s stability and low toxicity make it a preferred choice in various industries for maintaining hygiene and product integrity.