How to Whiten Teeth Naturally in Portrait Retouching

To whiten teeth naturally, remove yellow rather than adding brightness: reduce the saturation of the yellow range on a masked adjustment layer, lighten only slightly if the teeth still look dull, keep the darker shading towards the corners of the mouth, and lower the layer's opacity. Teeth should finish a little darker and warmer than the whites of the eyes.

Teeth are the quickest way to make a portrait look retouched, and most people make them look retouched the same way: they select the teeth and raise the brightness.

Real teeth are not white. They are off-white with some yellow, darker towards the back of the mouth, and shadowed where the lip crosses them. Uniformly bright teeth look artificial straight away, even to viewers who could not explain why.

What is usually wrong

In most portraits, teeth look wrong because they are too yellow or too grey, not because they are too dark.

Yellow comes from warm light or from the teeth themselves. Grey comes from sitting in shadow inside the mouth, or from a colour cast.

Both are problems of saturation and hue. Brightness is the wrong control.

The method

1. Select the teeth precisely

A rough selection catches the lips, and desaturated lips are a worse error than yellow teeth. Work at 100% with a small brush. Include the visible tooth surface only, and leave the shadow line where the lip crosses.

2. Reduce yellow first

Add a hue/saturation adjustment layer masked to the selection. Target the yellow range rather than lowering saturation overall, because a global reduction pulls the natural warmth out of the whole tooth and leaves it grey.

Lower the yellow until the teeth read as off-white rather than cream. On many frames, this step alone is enough.

3. Lighten slightly, only if needed

Now, and only now, raise lightness a little in the same adjustment. Much less than instinct suggests.

4. Keep the shading

Teeth are three-dimensional. Those towards the corners of the mouth are further away and in more shadow. If your adjustment has flattened that, paint the effect back towards the corners so the depth survives.

This is the step that separates a natural result from a row of tiles.

5. Check the mask at 100%

Look for the adjustment spilling onto the lips, gums or skin around the mouth. Desaturated gums turn grey, and grey gums look unwell.

6. Lower the whole adjustment

Drop the layer to around 60–80% opacity. As with skin, returning a fraction of what you removed is what makes the result read as real.

Knowing when to stop

Compare with the whites of the eyes. Teeth should be slightly darker and slightly warmer. If they are brighter, you have gone too far.

Look at the thumbnail. If your eye lands on the teeth first, they are too bright. In a good portrait the eye goes to the eyes.

Look again later. Teeth are something retouchers regularly overdo late in a session.

Related mouth work

Gums sometimes need the same yellow reduction, applied more gently.

A dark gap between teeth can be lightened very slightly so it does not read as a missing tooth, but do not close it. That changes the person rather than the photograph.

Braces and dental work are the client's decision. Ask before removing them, as you would before removing a scar.

Lip colour is corrected separately from the teeth. They sit next to each other and are different problems.

What BeEdits includes

The principle is the same across natural retouching: reduce what distracts rather than adding what was not there. Nobody wants whiter teeth in a photograph; they want teeth that do not draw attention.

That is the standard Standard Retouching works to at $4 per image, where teeth whitening and eye brightening are included in the per-image price rather than added on. Beauty Retouching, at $5, includes teeth whitening and eye enhancement alongside frequency separation and dodge and burn on the skin.

Eye whites work the same way

The whites of the eyes follow the same logic as teeth, and they are overdone for the same reason.

Remove visible veins first, on a separate layer, with a small healing brush. Then reduce red saturation in the whites with a masked adjustment instead of lightening them. Lighten only a little if they still look dull, and keep the natural shadow the upper lid casts across the top of the eye.

For the iris, add a little contrast rather than saturation, and leave its colour alone. Eyes brighter than the brightest highlight on the face look lit from inside.

The final check matches the one for teeth: in a thumbnail, the eyes should draw attention through their expression, not because they glow.

Common questions

Can I whiten teeth in Lightroom? Yes, with a local adjustment mask over the teeth: reduce saturation first, then raise exposure slightly. Check the mask at 100% so it does not spill onto the gums or lips.

Why do my whitened teeth look grey? Saturation was lowered across every colour instead of in the yellow range, which strips out the natural warmth. Target yellow only.

How should I handle teeth in a group photo? With a lighter touch than in a single portrait. Aim for teeth that look similar across faces at viewing size, rather than whitening each person as far as possible.

What about braces or visible dental work? Ask the client. Removing them without being asked changes the person's appearance, just as removing a scar would.

How do I know when to stop? Compare with the whites of the eyes: teeth should be slightly darker and slightly warmer. If they are brighter, go back.

Related reading: How to Retouch Skin Without Making It Look Plastic and 10 Retouching Mistakes Clients Notice Immediately.