Organic Virgin Coconut Oil, available at Thrive Market, $19.79
Whenever my hair is looking dry and dull and I need immediate, next-day luster, I coat my hair in a DIY coconut oil mask. It's cheap, more effective than the many substitutes I've tried, and doesn't have a long list of chemical ingredients that can do more harm than good.
I melt a few tablespoons in the microwave, dip my hair in so it's evenly coated, and pull it up into a bun. I put on a shower cap, sleep with it on, and wash it out in the morning. This is the version I have, but you can find similar on Amazon. — Mara Leighton, Insider Picks reporter