Do you have to use oil when you use laser hair regrowth helmets or no?

I'm thinking of using a laser hair regrowth helmet to cure my hair loss problem. But I did talk to someone about it and this person is giving me the answer that it will cure my hair loss problem but this person keeps giving me the same answer over and over when I ask this person a new answer and I'm not liking that this person isn't giving me much of a fresh, new answer. This person says I may have to use oil once a week on my hair and scalp when I use this laser hair regrowth helmet but I keep asking this person if the laser hair regrowth helmet will work without using the oil but this person won't give me a reliable answer on that question or won't answer that question at all. Can this person just say yes or no to the question? So I want to get a simple yes or no answer to my question. Do I have to or do I not have to use oil on my hair and scalp once a week when using a laser hair regrowth helmet? A simple yes or no is all I want out of that question. Don't be smart alec about this and don't be sarcastic about it ether. Simple yes or no.