My Job Is to Test Products, and These Are the 8 Best Makeup Items I've Bought on Amazon

My best friend's wedding in Costa Rica was fast-approaching, and I knew I'd need makeup that would stay put in the heat all day long. After lots of research, I ordered Maybelline Eyestudio Master Precise All Day Liquid Eyeliner ($7) and I'm so glad I did. I used it both for the bride's wedding makeup and my own face. Through 98 degree heat, there wasn't a single smudge. Even more impressive? We jumped in the pool and it still stayed put. This formula is pretty amazing.

Besides being a budge-proof eyeliner, the design is also easy to use. You can effortlessly achieve a straight line with the pen-like applicator. I gave both myself and my BFF a cat eye in just minutes — no Q-tip corrections needed.

If you're in the market for a new eyeliner pen, this affordable option is the way to go. I have been using it ever since my trip and love it as much as the first day I got it.