Pros: Avoids the big three nasty chemicals, dries quickly, works
Cons: Only available online
I'm pregnant, I swim, I'm a big-time gardener, and I like to have nails that look at least passably neat. So I needed a nail strengthening product without DBP, formaldehyde, or toluene that actually worked. I found Nail Aid via google and really liked their "We Care" page, describing their committment to women's health and empowerment causes, the environment, and cruelty-free causes.
I ordered their Pink Natural Growth Therapy and their Clear Liquid Bandage for broken nails (you get free shipping when you order two products). Products arrived quickly in recycled postage materials, and when opened didn't knock me down with that horrible auto-paint smell.
Between the swimming and the pregnancy my fingernails were not doing well at all (my nails did not get the memo about being all strong and healthy from progesterone). Over ten days I made five applications of the PNG and by the end, they were shinier and less likely to bend or chip. I've continued to use it and on a recent visit my mother, who's always been picky about my appearance, said "at least you finally did something about your nails!" Bottom line: super stuff at a reasonable price from a progressive company.