Is keratin shampoo safe if used constantly?

Keratin shampoos are generally safe for regular use, but their effects can vary depending on the specific formulation and your hair type. While they can help improve hair texture and manageability, excessive use may lead to buildup or dryness for some individuals. It's important to monitor your hair's condition and adjust usage accordingly. Consulting with a hair care professional can provide personalized guidance based on your needs.