Curly Xclusive Protein Conditioner works by penetrating the hair strands and strengthening the hair from the inside out. This can help restore the hair's natural elasticity, reduce split ends, and improve the texture and appearance of the curls. Curly Xclusive Protein Conditioner can also help to smooth the cuticle of your hair strands, which can reduce frizzy hair and enhance shine. However, not all types of curly hair will benefit from protein conditioner. If your hair is already sensitive to protein or prone to protein overload, using a protein conditioner could actually make your hair feel dry or stiff. It is therefore important to listen to your hair and adjust your hair care routine accordingly.