i am doing a project in science and i need a hypothesis for " which lip gloss is healthier homemade, or store bought brands?"

it needs to be able to be tested

ballengerb1

I would suggest a different experiment, one which will produce results in short order and can be measured. Health would take many years to measure and could be effected by so many more things than lip gloss like diet, smoking, exercise. You need a control group.