A lovely product that comes with a shower cap to remind you to protect your hair before the steam.
I have a high wattage microwave, and though a bit worried, it was fine. I do think there should be a small, medium or large, as I had to twist it to fit my head to enjoy the benefit . I microwaved x3 times to get that extended ‘steam’ . The other factor is that this is less a ‘steam’ and more of a ‘heat’ cap. That said, I enjoyed the sensation and my hair did feel softer and more nourished.