As mentioned above, dry hair and humid air can make some hair types very frizzy and damaged in summer. For summer frizz, use a soothing shampoo like SU Hair and Body Wash.
Even if you're not at the beach, summer heat blasts your hair. Skip the blow dryer and flat iron/curling iron to avoid overheating your hair.
Instead of washing your hair daily, try every other day or every three. Depending on your hair type, washing less often may benefit your hair and the planet's water resources!
Choose warm, but not boiling, shower water. It refreshes your skin and scalp and reduces CO2 emissions by warming the water with less energy.
In summer, pull your hair up for immediate coolness. Instead of ponytails, try loose, wavy hair that won't rest flat on your neck.
After washing, apply SU Hair Milk like conditioner or leave it on dry hair for minutes to hours for a natural cure.
Rough brushing can break summer hair and pull out roots. Wet hair is more fragile than dry hair, so use combs.