Is it ok to use egg,olive oil and lemon as hair conditioner and vichy dercos as shampoo?

As long as you don't use it more than once a week or so, it should be ok. The acids in lemon can harm your hair so that's why it's important to not use it too often.Is it ok to use egg,olive oil and lemon as hair conditioner and vichy dercos as shampoo?
yes