Rinse Your Hair Before Swimming
Before you go for a dive, wet your hair with tap water. If there’s an outdoor shower, rinse your hair under it. Or, you can simply use a garden hose. Just don’t rinse it in the chlorine. If you don’t want to take any risks, you can also apply a leave-in conditioner to create an added barrier between your hair and the chlorine.
Clean Your Hair After Swimming
After you get out of the pool for the day wash your hair immediately. Make sure you use shampoo and conditioner to seal in as much moisture as possible. Chlorine is a serious buzz-kill. It dries out hair faster than a blow dryer and straightening iron ever thought about.
Getting Green Out of your Hair
If you forget to rinse your hair to prevent the green, don’t worry. You’re not stuck with green hair forever. This is going to sound odd, but apply tomato juice, lemon juice, or vinegar (or another acidic liquid) to your hair and let is set for about 10 minutes. Then, rinse with cold water and repeat.
This 20 minute cycle should remove all of the green from your hair.