How to mark the chin in Harmy and what to expect

The chin is an area where the front-facing photo tells little of the story: much of the chin assessment happens in profile. Even so, Harmy's Chin point is useful for showing the patient how the base of the face may look longer, shorter or more defined in a front view. This tutorial explains the marking and the limitations you should know before presenting the image.

How do I mark the Chin in Harmy?

1. Create the projection with a well-standardized front-facing photo.
2. In the marking, tap the Chin point, on the lower part of the face.
3. In the Plan, set the ml and the intensity.
4. Tap Create projection and compare on the slider.

What can the front-facing photo show about the chin?

In a front view, the app can suggest a change in apparent height and in the width of the base of the face. It does not show advancement or recession, because the projection uses neither a profile nor a 45-degree view. For that reason, telling the patient "see how your chin will look from the side" would be misleading. Profile assessment remains clinical, for example with assessment by thirds and standardized photography.

How many ml and which intensity?

The app's sample simulation uses 1 ml on the Chin. The Full harmonization shortcut sets 1.5 ml with Moderate intensity. The step is 0.5 ml, from 0.5 to 5 ml.

The ml is a conversation tool. The amount to inject is defined by the qualified professional, after assessment. To understand the two controls, see ml and intensity.

How do I read the result on the slider?

Drag the gold line and look at three things: the height of the chin relative to the lower lip, the width of the base and the harmony with the jawline. The AI preserves expression, skin and lighting, so any visible change comes from the marked area. If the difference looks small, that is consistent with low volumes.

Clinical precautions

The mental nerve and vascular branches run through the chin area, described on the page for the Chin area. Possible complications include swelling, bruising, asymmetry and, with hyaluronic acid, a rare vascular risk, which calls for hyaluronidase on hand. The app's projection neither replaces nor guides any injection technique.

Good practices

Mark the Chin alone first; then combine it with Lips or Jawline if the conversation calls for it. See good marking practices and marking the jawline for the neighboring area.

Common errors when marking the Chin

The most frequent error is using a photo with the chin slightly pushed out or tucked in, which changes the apparent height of the lower third and misleads the reading of the Before and After. Another is marking Chin and Jawline together on the very first attempt: the change from two neighboring points blends together and the patient cannot tell which one caused the difference.

It is also worth managing expectations about asymmetry. The chin usually has some natural asymmetry, and the AI starts from the real face. If there is an evident deviation, the projection does not correct it on its own, and that conversation needs to happen at the assessment. For this topic, see explaining the chin to the patient.

Finally, remember that the app's Chin point covers both filler and mentalis toxin under the same marking point. The difference between the two is clinical and does not appear as an option in the image, so make clear to the patient which approach you are talking about when you show the projection.