What this site is for
This is patient education about the vertical creases between the brows, published by Chongqing West District Hospital, a tertiary general hospital in Jiulongpo District, Chongqing. It is a concern guide rather than a procedure page: it answers why this is happening, whether it needs treatment, and which of several paths applies. The injections and the devices themselves, and the anatomy they work on, are explained on the wrinkle-injection and laser pages of this cluster and on Dr. Mao’s own site, and repeating them here would help nobody.
The distinction the site is built on
A glabellar crease is a muscle problem with a skin component, and the two parts answer to different treatments. The corrugator supercilii and the procerus run across the brow, so their contraction folds the skin vertically, and that fold is what the rung aimed at the muscle removes. The groove that decades of folding leaves behind lives in the skin and is reached only partly. Because the same muscles also hold the inner brow down, relaxing them changes the position of the brow, which is why the brow is examined and discussed before treatment rather than after it.
What it deliberately does not do
It does not name products or brands, quote prices, intervals that are fixed, or dosages, or promise a result. It does not present a cream as an alternative to treatment for a crease that is being folded by a muscle, or a device as a substitute for the rung that reaches the mechanism. It does not describe technique, because that belongs to the pages that cover the treatments. And it does not treat a new one-sided change, a drooping brow or lid, weakness or numbness as an appearance problem at any point.
The limits of a website
Nothing here can tell you which muscle is producing your own crease, how much of it is already etched into your skin, or whether your brow would tolerate being relaxed. Those depend on seeing the face at rest and under movement, on measuring the brow and the lid edge, and on a history that includes spectacles, screen hours and previous treatment. Use this site to arrive at an assessment with better questions, and treat any answer you receive here as general information rather than as advice about you.