Help to come up with science expo topic relating to makeup/hair products and their toxicity?

I'm thinking about doing a science expo project this year, but I can't come up with a good topic. I want to do something relating to make-up, hair products, etc. and their effects on humans/ their developement due to toxic ingredients or something along those lines. I'd really appreciate it if you could help me out here. I'm in high school right now, and I want to do a serious project that would actually have a possibility at winning awards.


Thanks.Help to come up with science expo topic relating to makeup/hair products and their toxicity?
These science fair sites might help:





http://www.sciencebuddies.org/





http://www.all-science-fair-projects.com鈥?/a>





http://www.ipl.org/div/projectguide/





http://school.discoveryeducation.com/sci鈥?/a>





http://www.picadome.fcps.net/lab/sci_fai鈥?/a>





http://www.scienceproject.com/





http://www.energyquest.ca.gov/projects/i鈥?/a>





http://www.freesciencefairproject.com/





http://www.hometrainingtools.com/article鈥?/a>





http://www.usc.edu/CSSF/Resources/Gettin鈥?/a>