Hair revital x For example, my dad was saying he likes to use these plastics scrubbers on his head to really massage in the shower. Would that make a difference? So the question is, plastic scrubbers or massaging your scalp? So we'll talk about that in a second. Maybe I'll go on for now and if you have-- So let's talk more specifics about how your hair grows. And we're talking more about seeds and soil, seasons of the growth and a seed warranty. First soil factors. So if you go to the store, this stuff is super expensive soil. This is from Home Depot. It's the top of the line. It has potassium, it's got everything a plant and a seed ever need to grow. It's specific for the roses, so it's tuned for it. Similarly, the hair follicle stem cells have this environment here around the cells. There's Hair revital x reviews certain critical things. So common questions we get in the hair clinic are, do nutritional supplements help? What hormones help or hurt? What about stress? And what about the medicines I'm taking? Because sometimes I think that I'm on 20 medicines and my hair stop growing. What do I do? Let's talk briefly about-- This can be an entire lecture in itself. Actually, every one of the next four slides can be an entire lecture. But the most important point I think about it is that there's a lot of epi phenomenon that people talk about. And then there's things that people that I would feel like I feel confident in saying, and it's been well-documented. These four, these three in particular, iron, biotin and zinc, are really critical for hair, for normal hair growth.