Short nifty thing

Nifty thing, and I actually taught this lab!
C&E News article  about quantum dots.   Specifically this time using as a laser, which our dots were not monochromatic enough to pull off.   But never let anyone tell you that nobody learns anything useful in college.

How willing are you to experiment on yourself?

This is not going to be a detailed scientific post, but it does have something that I wanted to ask.   How willing are you to be your own guinea pig?  I make a lot of my own bath products-mostly so I can make them smell exactly the way I want to.  And I'm willing to experiment on myself by trying differing amounts of shea butter vs. coconut oil.  But I'm working on branching out-I want one single face moisturizer that will have all the effects I want, something I think is illegal to sell.   If anyone knows how to make anti-acne with sunscreen wants to chat, I'm interested.  But this is becoming a lot more of an issue for me-how do I safely test this.   I'm willing to risk dry skin, but skin cancer, less so.   So what are good options to get over this?