CLEAN HAIR. HEALTHY SCALP.
Light-as-air dry cleansing technology for scalp and hair that feel just washed. This healthy scalp dry shampoo is clinically proven to not clog pores or leave a white residue. No more dry, powdery roots or gritty buildup. Nº.4D is proven to leave hair looking and feeling clean. 
KEY BENEFITS 
- Clean, weightless body 
- Detoxifies scalp 
- No grit or powdery residue 
- No clogged pores 
CONSUMER STUDY RESULTS 
100% saw no white residue 
97% said their hair looked clean 
97% saw a reduction of oil*