It's not a bad idea to try and use moisturizing products across the board, but, at the very least, incorporate a moisturizing deep conditioner or treatment into your routine once per week, Wellman advises. A few key ingredients to seek out: Shea butter, avocado, glycerin, and aloe, all of which are deeply moisturizing.

Over the years, I've tested dozens of products that promise to boost hair growth, and I always find myself returning to the Nutrafol Root Purifier Scalp Shampoo. As it turns out, this is a top favorite of board-certified dermatologists, too.

We also tried many hair growth conditioners and were particularly impressed with the Redken Extreme Length Conditioner, which helped improve hair growth in just three weeks, and the Nutrafol Strand Defender Lightweight Strengthening Conditioner for Thinning Hair for its impressive regrowth capabilities.

Homemade deep conditioner Mix equal parts honey and olive oil. Leave on your hair for 20 to 40 minutes. Combine one egg yolk with two tablespoons of melted coconut oil. Leave on your hair for 15 to 20 minutes.