They're not called "pearly whites" for nothing. When we think of healthy teeth, gleaming rows of white molars come to mind. Yellow just won't cut it.
Unfortunately, DIY whitening isn't always safe. Before you slap on charcoal or swish around vinegar, read the studies. Hear from experts. Read all the data so you can put your brilliant mind to work. Get the smile you want without the damage you don't. It's possible. And with research, it's probable too.