I’ve ditched commercial shampoo and conditioner and jumped on the bicarb and vinegar bandwagon.
It’s been about three months now and I can’t see a reason to change: it’s cheap, effective, reduces plastic waste, and most importantly it doesn’t contain all the heavy chemicals in regular shampoos and conditioners, so it’s better for you and the environment.
In one clean, used bottle mix about 1 part bicarb with 4 parts water. This is your “shampoo”.
Then in another bottle, mix the same ratio of vinegar and water. This is your conditioning rinse.
Shake well before use and apply them as you would shampoo and conditioner.