Why Are Hair Coloring and Hair Extensions Usually Not Recommended Together?

Unpredictable reactions: The factory's processing process is unknown, so the dye may turn green, purple, or lose color.

Structural damage: Ammonia and hydrogen peroxide open the hair cuticles, causing hair extensions to dry out like straw.

Hazardous joints: Dye seeps into keratin or tape, causing large-scale peeling.