Apply to dry hair! This means you don't need to get in and out of the shower to apply (how convenient!)
Please take note that Hello Hair is an oil-based treatment, not crème based, so the consistency is a lot runnier.
Dry locks love Hello Hair, and will absorb a lot of the oil straight away. This means your hair shouldn't be dripping oil, but should appear oily to the point of looking wet.
If you're worried about oil dripping on your clothes, wrap your hair in a Hello Hair Towel Wrap, or put a towel around your shoulders / wear an old t-shirt while applying. Using an appropriate amount of Hello Hair for your hair length and thickness means it shouldn't drip, and wrapping your hair in a Towel Wrap or cling wrap will always contain any excess liquid.