The Environmental Working Group has updated their annual guide to safe sunscreens. In this report, only 8 percent passed the EWG tests for dangerous contents and truth in labeling. Fully 92 percent are rated "not recommended."
Again, like I've said for years, the healthiest, best sunlight is natural sunlight - and our bodies need it for optimal health.
Here's the EWG report: http://www.ewg.org/2010sunscreen/full-report/