Are semi-permanent hair color safer than permanent hair color?

Semi-permanent hair color is generally considered safer than permanent hair color because it typically contains fewer harsh chemicals, such as ammonia and peroxide, which can damage hair and irritate the scalp. Semi-permanent dyes only coat the hair shaft and gradually wash out over time, reducing the risk of long-term damage. However, individual reactions can vary, so it's important to conduct a patch test regardless of the type of dye used.