0- Resistant/healthy hair
1- Normal hair/up to 30% discolored
2- Colored hair/up to 70% discolored
3- Discolored hair/up to 70% discolored/very porous
Natural Styling Glamour Wave contains a special formula that combines Hydrolyzed Silk Protein and Hydrowave Moisturizing Technology that provides smooth, silky curls and waves that last up to 12 weeks.