Overview
Olaplex No. 4 Blonde Enhancer Toning Shampoo is a gentle cleansing formula made to brighten blonde hair and calm unwanted warm tones. It suits colour-treated, bleached and naturally blonde hair that needs everyday care without stripping moisture. The bond-focused approach helps keep strands feeling stronger while supporting a clearer, cooler blonde result.
Key benefits
- Helps neutralise brassy and yellow undertones
- Supports stronger-feeling hair and less breakage
- Cleanses gently enough for regular use
- Adds moisture to dry or damaged blonde hair
- Free from sulphates and parabens
- Suitable for colour-treated and bleached hair, and vegan-friendly
Key ingredients
Olaplex’s bond-building ingredient that helps reinforce hair structure and improve resilience during cleansing.
Counteract warm, brassy tones so blonde shades look clearer and brighter.
Draw in and hold moisture to leave hair feeling softer and less dehydrated after washing.
Smooth the hair surface to support shine and a more manageable finish.
Hero actives only — see packaging for the full INCI list.
How to use
- Wet hair thoroughly and apply a small amount through lengths and roots.
- Massage into a lather and leave on briefly so the toning pigments can work.
- Rinse well, then follow with a conditioner if needed.
- Use regularly to maintain cooler blonde tones, adjusting leave-on time to suit your hair.