You can use both in your routine for the extra boost, one in the morning and one at night is best. However, if you only want to manage 1 product for growth then go with the Beard Grower Oil. It's a bit more powerful, works down to the skin easier and is appropriate for facial hair at any stage, even those with virtually no facial hair. The balm does also help with growth but part of its purpose is to be applied directly on hairs to help condition and style them, and be applied to thin spots where you can work it down to the skin, to help with growth there.