Here are some tips that are going to save you from the harsh chemicals during Holi:
Put a layer of aroma oil on your skin, the oil will protect the skin and will not let thee colour penetrate the pores. It would also be easy for you to wash the colours off.
In order to keep your nails clean, use a dark shade of nail paint like deep navy or burgundy that will not let the colours seep in your nails.
Opt for water resistant or athleisure clothes, as it prevents water colours from seeping into the skin.
Here are some tips that you may need post Holi:
Avoid the use of soaps or face washes as they are alkaline in nature, they will dry your skin. Try a homemade ubtan, using curd, turmeric, honey and besan. You can also use aloe vera cream to cleanse.
For your hair, applying egg yolk or curd can be an effective method to get rid of the Holi colour and its damaging chemicals before going in for a shampoo.