Minimize Peak Sunlight Exposure
As we all know, the sun is the most intense between 10 AM to 2 PM. If you plan to go outside, please aim for the morning or late afternoon. Although you won’t totally escape the sun, you can avoid some of the harshest and most damaging rays, thus reducing sun damage.
Use Hair Oils
Hair oils will smooth the cuticle, add shine and deliver natural sun protection.
Use Hair Mask
Even if you’re not outside every day, just a few minutes in the summer sun can leave your hair feeling dry. An excellent option which is one of the most popular natural ways to protect hair from the sun and help with any damage is to use a homemade hair mask.
Take a Break From Heat Styling
If possible, please use heat tools as less as possible. After all, the heat from these styling appliances will damage the keratin sheath around the hair and leave it open to sun damage.
I believe with those measures, your hair will looks very healthy and protect hair well.