Notes

Will an AI try-on change my face?

Last updated: 22 August 2026

The five edits a beauty camera makes to a face, a four-point test that catches them in one photograph, and the list of what Looksmith will not touch.

Some AI try-ons change your face and some are built not to. Looksmith paints makeup into the photograph you sent and locks everything underneath it: face geometry, eyelid topology, age, pose and expression. Other beauty apps do the opposite, slimming the jaw and enlarging the eyes, and call it a filter. The difference is checkable, and it takes one photograph.

The five edits sold as a filter

Here are five edits worth looking for in anything sold as a beauty camera. None of them are makeup. They are edits to the person, which is why a try-on can leave you feeling worse than when you started.

They are not hidden, either. Perfect Corp's own page for YouCam Makeup, checked on 22 August 2026, lists AI face reshaping for the eyes, brows, nose and lips, an AI Face Shaper that slims the face and the jawline and reshapes the nose, skin smoothing that removes wrinkles and blemishes, and an AI Facelift that reduces the appearance of ageing.

Two things make it worse. The first is that the app presents those five edits as a camera mode, when it is an edit, so where it does not put a slider on screen you have no way of knowing what it changed or by how much. The second is that the sliders do not always start at zero, so the first picture you take may already have been retouched before you moved anything. Open the settings before you decide the camera is showing you your face.

What are beauty apps actually changing about my face?

Shape, texture and tone, in that order of severity. Shape is the one people find hardest to name and hardest to forgive, because a narrowed jaw does not look like an effect. It looks like you, slightly wrong, and the mind reaches for an explanation about the face instead of the software.

What Looksmith locks

This lives in Looksmith's prompt rather than in a reassurance paragraph, so it can be written out line by line. Looksmith will not change:

1. Face geometry, of any kind. No slimming, no cheekbone lift, no nose reshaping, no lip enlargement, no jaw edits.
2. Eyelid topology. A monolid stays a monolid. This is the highest severity rule in Looksmith's pipeline.
3. Your age. Looksmith will not make you look younger or older.
4. Your pose, head tilt, gaze, expression and framing. What Looksmith sends back is your own photograph retouched, not a new portrait built from a description of you.
5. Identity marks. Facial hair, moles, beauty marks and nose studs are preserved: never removed, and never added. Glasses are preserved exactly, and never added.
6. Accessories. Looksmith adds no piercings, tattoos, jewellery or face paint.
7. Skin texture. No beauty-filter smoothing.

Haircuts are out of scope. Looksmith locks length, layering, parting, bangs and silhouette, so it is not the place to go for a fringe and does not pretend to be.

Will an AI try-on change my monolid?

Some will. The obvious way is the geometry edit, where the app draws in a crease that was never there. The subtler way is placement. Eyeshadow mapped for a creased lid, applied to a lid that has no crease, lands in a band that does not follow the eye. The result reads as wrong even though the app reshaped nothing.

Looksmith carries eyelid topology as its highest severity rule for that reason. A monolid is not something to correct on the way to a look, and Looksmith maps placement to the eye in the photograph.

What Looksmith does change, on purpose

The list above is a boundary, not a claim that Looksmith leaves the photograph alone. A try-on that changed nothing would be a photo viewer.

Contour is the case worth being precise about. A contour changes where the light falls, so a face can read as narrower with it than without it.

That is also true of the powder in a compact. The difference is that Looksmith is painting a product onto the photograph rather than moving your jaw, so if you wipe the makeup off in your head, the outline underneath is the one you sent.

The test you can run on any app

You do not have to take anyone's word for this, including Looksmith's. Take a single picture, front on, neutral expression, standing in front of something with a straight line in it: a door frame, a tiled wall, a window blind. Run it through the app once. Save the original and the picture the app gives back, and open both at the same size.

How do I tell if an app changed my face?

Flip between the two images full screen and look at four things.

1. Jaw width. Put a fingertip on the screen at the widest point of your jaw and flip. If the outline moves out from under your finger, the app slimmed you.
2. Eye spacing. Compare the gap between the inner corners of your eyes against the width of your nose at the bridge. That ratio cannot change on its own. If it moved, either the eyes were scaled up or the bridge of the nose was squeezed.
3. The eyelid crease. Look for a crease that was not in the original, or one that has moved higher. It is easy to miss, because you are looking at the makeup rather than at the lid.
4. The straight line in the background. Face slimming warps the pixels around the outline, so a door frame behind your jaw will bow. It is the hardest tell to hide, because a warp that pulls your jaw in usually drags what is behind it along too.

The second of those is a measurement, which is the point of running it. "It looks a bit off" is arguable. "The gap between my eyes grew relative to my nose" is not.

Looksmith is coming soon to iOS and is not released yet, so keep this test for later. Applied to any beauty app already on your phone, it works this afternoon.

Where the drift comes from

It comes down to what the app asks the model for. A model told to produce a beautiful portrait of a person drifts toward whatever it saw most of during training, and the drift is not neutral. Bianchi and co-authors, in Easily accessible text-to-image generation amplifies demographic stereotypes at large scale (FAccT, 2023), found that prompting for basic traits produced images reinforcing whiteness as an ideal. Nobody has to intend that for it to happen.

Looksmith's job is narrower. You save a Likeness in Looksmith once, a set of selfies that becomes your reusable face. You pick a look. Looksmith sends back your photograph with makeup painted into it and lists the products it used beside it, in roughly a minute. The instruction is put this makeup on this face and leave the rest, which is a much smaller thing to ask and a much easier thing to check.

A promise is a sentence. A constraint is something you can hold a picture up against.

Does Looksmith smooth my skin?

Looksmith does not. Pores, texture and fine lines come back as they went in. Coverage and finish change how skin reads, because that is what foundation and powder do, but Looksmith's pipeline has no smoothing pass in it.

What happens to my photograph after I upload it?

A fair thing to ask before you upload anything. Looksmith sends your photographs to third-party AI providers that generate the image under written contract, and those providers may use them only to make that picture and send it back. Looksmith does not train its own models on your photographs, your face data or your looks, and does not permit its providers to train theirs. Photographs are kept for as long as you keep them in your account, within the periods set out in Looksmith's biometric retention policy. The full text is in the privacy policy, and the general version of the question, what to ask any app before you upload, is in what happens to your selfie in an AI makeup app. If what you want to know is who builds this and what it costs, that is is Looksmith legit.

The short version

An AI try-on can change your face. Whether it does is a decision somebody made, not a property of the technology, and the apps that change it do not always say so. Ask any tool you use for the list of what it will not touch, and if it cannot produce one, run the photograph test and produce one yourself.

A tool that narrows your jaw without telling you is not showing you a look. It is showing you somebody else wearing it.