if you straighten your hair and then take a shower, your hair will return to it's normal state, just like product doesnt stay in your hair after you wash it.
The easiest way to lighten your hair is to use bleach designed for hair.
You dye your hair with the colour you want, lighten the colour.
Yes after you go the pool you need to take a shower but when you take a shower scrub your hair really really good using the Shampoo&Conditioner method
I use a detangler or take a shower.
I'm not sure but lemon juice does lighten blonde hair.
Take a shower, grease coats the hair 24/7.
dry itleave it wet
Yes you can.
nope
yes
Today, it is easier than ever to lighten dark hair. Many companies such as Clairol make hair color specifically designed for dark hair. Hair bleach will also lighten dark hair and prepare it for any color you wish to put on it.