

The part you can cover, and the part you cannot.
You can dress around a belly. A high waistband, a looser top, and most days nobody knows. Your face and neck do not give you that option. They are the first thing in the mirror and the first thing anyone else sees.
These are the two places most people would change, and they are completely different shapes. A fifty-inch belt cannot follow a jawline. A silicone mask cannot wrap a waist. So this is both.
Most at-home masks light up the cheeks and forehead and then stop at the jawline, which is precisely where the skin starts to show its age. The Glow keeps going down the neck. That is the whole reason it pairs with the belt rather than duplicating it: between them, the two places you actually look at are both covered.
Judge it at eight weeks, not eight days. Skin rebuilds on a six to eight week cycle, and that is true of anything at any price. Neither device changes that clock. Anything promising you a week is describing how it feels rather than what changed.
Sixty days, money back. Use both for sixty days. If nothing looks or feels different, send them back. The only risk is doing nothing.
Not for use by children or during pregnancy. Avoid if you have epilepsy, a thyroid condition, or light sensitivity, or on skin with an open wound. If you are unsure, check with your doctor.