Purple shampoo neutralizes unwanted yellow or brassy tones in blonde, silver, or highlighted hair. The purple pigment counteracts the yellow, leaving hair looking brighter and cooler.

Overuse of purple shampoo can lead to a dull, ashy, or even purple tint, especially on very light or porous hair. Hairdressers often advise using it sparingly and alternating with moisturizing shampoos to prevent dryness and color buildup.

The best purple shampoo depends on hair type and desired result. Look for formulas specifically designed for your blonde shade (e.g., platinum, honey) and consider factors like moisturizing ingredients and sulfate-free options if you have dry or sensitive hair.

Wet hair thoroughly and apply purple shampoo, focusing on areas with the most yellow tones. Leave it on for the recommended time (usually 1-5 minutes, check the product instructions) and rinse well. Always follow with a moisturizing conditioner to replenish hydration.