Hey do you have any shampoo or conditioner recipes?

I am in 8th grade and I am doing a science project where I have to make a shampoo an conditioner at home! Please HELP!!!Hey do you have any shampoo or conditioner recipes?
I've heard that using mayonnaise can soften your hair and make it smoother and shinier.Hey do you have any shampoo or conditioner recipes?
i have heard that if you mix olive oil,a small amount of lavender (for smell) and avacodos it is supose to be good for your hair

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