, add thermal protection so you can apply it before curling or hair drying. To find the best ones, we tapped hair stylists and Glamour editors for their favorite recs, and tested over a dozen options on various hair types.
Our top pick by far is the Olaplex No. 7 Bonding Oil because it’s lightweight, didn’t weigh down even the finest strands, and left hair looking shiny—not greasy.
We also found formulas that help repair damaged hair promote hair growth.What hair oil is best for your hair type?The key to deciding between different oils is understanding your hair type and porosity level (how well it can absorb moisture). “For example, thicker oils would not benefit because it will weigh the hair down,” says , a hairstylist and .
So, if you have fine strands, it’s important to look for lightweight oils like grapeseed or jojoba. On the other hand, if you have thick hair, or go with heavier oils like castor oil or coconut.What hair oils promote growth?There are certain . “ in particular is rich in fatty acids and can help improve hair density, and jojoba oil encourages a balanced hydration and a healthy environment for hair to grow in,” says , a hair stylist and owner of in NYC.