To prevent mold growth in bathtub caulk, it's essential to consider factors like humidity levels, ventilation, and the type of caulk used. Regular cleaning with appropriate solutions can help, but choosing mold-resistant caulk during installation is a proactive step. Additionally, maintaining a dry environment after showers can significantly reduce mold risk. Curious about the best products or techniques to keep your bathtub caulk mold-free? Ask Improvi.ai for personalized guidance!