How to take care of blonde hair?

To take care of blonde hair and maintain its vibrancy, follow these tips based on the information provided in the search results:

1. Wash your hair with purple shampoo at least once a week to neutralize brassiness and yellow tones.
2. Keep your hair hydrated by using moisturizing shampoos and conditioners, ideally without sulfates.
3. Protect hair from heat by limiting use of heat styling tools and using heat protectants when necessary.
4. Avoid washing your hair daily; let it air dry when possible or gently towel-dry before styling to minimize breakage.
5. Use a shower head filter to prevent mineral buildup in the water, which can affect hair health.
6. Opt for natural oils that are water-soluble, as oils with a yellow tint can discolor blonde hair.
7. Invest in a dry shampoo for a convenient way to freshen up hair without washing every day.
8. Be careful with hair dyes, and only bleach hair in small increments to preserve hair's integrity.
9. Avoid chlorine exposure, and if you're swimming in a pool, rinse your hair with tap water beforehand.
10. Finish off with a cold rinse to seal the hair cuticles and lock in moisture.

Remember to consult a professional for tailored advice based on your specific hair type and color.