What Really Causes Blonde Hair to Turn Green?
It’s Not Chlorine, It’s Copper
Most people blame chlorine, but the green cast is caused by oxidized copper found in many water systems. Copper binds to the hair shaft, especially when the cuticle is open and porous.
Where does the copper come from?
- Aging copper pipes (common in older American homes)
- Algaecides and other pool chemicals
- Some municipal water supplies
Why Blonde Hair Is More Vulnerable
Blonde hair, especially if lightened, is:
- Porous and easily absorbs minerals
- Dehydrated from chemical processing
- Lacking protective melanin, which dark hair has
That makes it a perfect magnet for metal buildup.
How to Prep Your Hair Before Summer Season
Pro-Level Hair Prep
Before the first dip in the pool, take these steps:
- Book a deep-conditioning treatment at your salon
- Use a toning gloss that neutralizes unwanted hues
- Strengthen your hair’s protective layer with protein treatments
At-Home Products That Work
You don’t have to break the bank. These items can be found at your local beauty store or online:
- Leave-in conditioners with UV and chemical shields
- Silicone-based serums that act as water barriers
- Chelating shampoos (like Malibu C Swimmers or Ion Swimmer’s)
These tools help your hair resist mineral absorption and sun damage.
