Quaternium-73 and Bacterial Resistance

Based on the product information available for Quaternium-73 (e.q. Pionin, Pure Powder), it is described as being very effective at killing a wide range of bacteria, including P.Acnes, which is associated with acne. The description highlights its efficacy in reducing bacterial counts.

However, the provided product description does not contain information regarding whether the use of Quaternium-73 can lead to bacterial resistance over time. Therefore, based solely on this information, it is not possible to confirm if resistance develops.