A sharp V at the centre of the upper lip, a centre-full lower lip, and an outline that tapers toward the corners. Here is how to tell them apart from bow-shaped lips, and why they get called rare.
Quick answer
Heart-shaped lips have a sharply pointed Cupid’s bow with high peaks, and a lower lip that is fullest at the centre and tapers toward the corners. Together the outline reads as a heart. They are widely called the rarest lip shape because both defining features soften with age, though no population study has ever counted them.
Key takeaways
- The defining feature is a sharp point at the centre of the upper lip, not a rounded curve.
- The lower lip is fullest in the middle and thinner at the corners, which completes the heart outline.
- Heart-shaped and bow-shaped lips are the most commonly confused pair. The difference is angle versus curve.
- “Rarest” is practitioner observation, not measured data. Any exact rarity percentage you see quoted online is invented.
- The shape genuinely does become less common with age, because bow peaks flatten and central volume fades.
- Makeup rule: trace the V precisely, never fill the dip, and keep the taper at the corners.
What heart shaped lips actually are
A heart-shaped mouth is defined by two features happening at the same time, not one.
- Feature one is the Cupid’s bow. The double curve at the top of the upper lip comes to a sharp, angular point at the centre, with two peaks that sit clearly above the dip between them. On most mouths this dip is a soft curve. On a heart-shaped mouth it reads as a V.
- Feature two is the lower lip. Volume is concentrated in the middle and falls away toward the corners, so the widest, fullest part of the lower lip sits directly under the bow. That taper is what closes the heart outline.
Either feature on its own gives you a different shape. A sharp bow with an evenly full lower lip is bow-shaped. A centre-full lower lip with a soft bow reads as round or full. You need both for heart.
The anatomy terms behind the shape
- Cupid’s bow: The double peak and centre dip at the top of the upper lip. Its sharpness is the single most important cue for this shape.
- Vermilion: The red tissue of the lip itself. How much of it shows is what people mean by full or thin.
- Tubercle: The fleshy mound in the centre of a lip. A prominent lower tubercle is what creates the centre-full lower lip.
- Oral commissure: The corner of the mouth. On heart-shaped lips, the outline narrows noticeably as it approaches the centre.
Heart Shape Lips vs Bow Shaped Lips
These two get mixed up more than any other pair. One table settles it.
| Check | Heart-shaped | Bow-shaped |
|---|---|---|
| Centre of upper lip | A sharp angle, a visible point | A rounded curve, no angle |
| Peak height | Peaks clearly above the dip | Peaks only slightly above the dip |
| Lower lip | Fullest at the centre, tapers to corners | Even width across, often flatter |
| Outline toward corners | Narrows noticeably | Stays roughly constant |
| Best finish | Gloss or satin on the peaks | Matte or satin along the arc |
If you are still unsure after the table, the lip shape detector measures your Cupid’s bow depth and peak angle in degrees and prints both numbers with your result.
How to identify heart-shaped lips in 60 seconds
A mirror, daylight, and a completely relaxed mouth.
- Relax your mouth. No smile, no pressing your lips together, no pout. A smile stretches the corners and flattens the bow, which hides the exact feature you are checking. This is the step people skip and it is the reason most self-assessments come out wrong.
- Look at the centre of your upper lip. Heart-shaped lips come to a point. If what you see is a rounded curve rather than an angle, you have bow-shaped lips and the rest of the checks will not change that.
- Check the peak height. The two peaks should sit clearly higher than the dip between them. If the difference is shallow, you are looking at full or round lips.
- Check the lower lip. Is it fullest in the middle and thinner at the corners? A lower lip that stays even across its width points to bow-shaped instead.
- Confirm with one photo. A mirror reverses your face, and small asymmetries are easy to misjudge in reverse. Take a single straight-on photo, mouth relaxed, and run the same three checks again.
Why heart-shaped lips are called the rarest
Folklore vs evidence
- Widely reported: heart-shaped lips are the rarest of the nine shapes. You will find this on almost every lip shape guide, often with an exact percentage attached.
- What the evidence supports: nobody has counted lip shape frequency across a large population. There is no study to cite. Any specific percentage you see is invented, and we would rather say so than repeat it.
- Why the claim is still reasonable: a heart shape needs two features at once, and both of them fade. Vermilion volume decreases with age, the philtrum lengthens, and the bow peaks flatten. So the shape is genuinely less common in any adult population than either of its component features alone. That is a mechanism, not a measurement, and we label it as such.
The same reasoning explains why the shape is associated with youth. It is not that young people are more likely to be born with it, but that the features it depends on are the first ones age takes away. If you had clearly heart-shaped lips at twenty and they read as bow-shaped now, nothing has gone wrong.
Makeup for heart-shaped lips
The shape is the asset. Every technique below protects it rather than changing it.
Do this
- Trace the V exactly, using a liner within one shade of your natural lip colour
- Sharpen the outer edge of each peak with a fine brush and a little concealer
- Put gloss in the centre of the lower lip only, where the volume already is
- Choose satin or gloss so light catches the peaks
Avoid this
- Filling in the centre dip, which erases the defining feature
- Overlining at the corners, which removes the taper
- Heavy flat matte, which cancels the light and shadow on the peaks
- Thick opaque gloss over liner, which blurs the V
More technique by shape in the makeup guide for every lip shape.
Heart shaped lips and filler
Injectors use “heart” as the name of a target result, not a description of anatomy. It means concentrating volume centrally so the outline tapers toward the corners, which is the same geometry described above.
Whether that suits you depends on how much bow definition you already have to build on, and on your anatomy generally. That is a judgement only an in-person assessment by a qualified, regulated practitioner can make.
The reason to identify your natural shape first is practical: it decides which results are realistic. That is the whole argument for knowing your starting point before a consultation, not after it.
Medical disclaimer. This page is written for makeup and grooming decisions. It is not medical advice, it does not recommend or discourage any procedure, and it cannot tell you whether a treatment is suitable for you. See the full disclaimer.
Heart-shaped lips: frequently asked questions
What are heart-shaped lips?
Heart-shaped lips have a sharply pointed Cupid’s bow with high, well-defined peaks, and a lower lip that is fullest at the centre and tapers toward the corners. Seen straight on, the combined outline reads as a heart. The sharpness of the V is what separates them from bow-shaped lips, where the peaks are rounded rather than pointed.
Are heart-shaped lips really the rarest lip shape?
They are widely described as the rarest, but no one has counted lip shapes across a large population, so treat that as practitioner observation rather than a measured statistic. The reasoning behind it is sound: a heart shape needs two features at once, sharply peaked bow definition and central lower-lip fullness, and both soften with age. That combination is less common than either feature on its own.
What is the difference between heart-shaped and bow-shaped lips?
The dip. Heart-shaped lips come to a sharp point at the centre of the upper lip and the outline narrows toward the corners. Bow-shaped lips have a shallow, rounded M curve and stay roughly the same width from centre to corner. If you can see a clear angle at the centre rather than a curve, it is heart-shaped.
How do I know if I have heart-shaped lips?
Relax your mouth completely in daylight and look straight into a mirror. Check three things: is the centre of your upper lip a sharp point rather than a soft curve, are the two peaks clearly higher than the dip between them, and is your lower lip fullest in the middle and thinner at the corners. All three together means heart-shaped.
Do heart-shaped lips change with age?
Yes, and this is the main reason they are called rare. Volume in the lip decreases over time, the philtrum lengthens, and the Cupid’s bow peaks flatten. A mouth that reads as clearly heart-shaped in your twenties often reads as bow-shaped or full by your forties. Sun exposure and smoking speed this up.
What makeup suits heart-shaped lips?
Trace the V exactly with a liner within a shade of your own lip colour, never blur or fill the centre dip, and keep gloss to the middle of the lower lip only. The taper toward the corners is part of the shape, so avoid overlining there. Satin and gloss finishes catch light on the peaks; heavy flat matte flattens them.
Can lip filler create heart-shaped lips?
Injectors do describe a heart-shaped result, achieved by concentrating volume centrally so the outline tapers at the corners. Whether it suits you depends on your existing bow definition and your anatomy, which only an in-person assessment can judge. Nothing on this page is medical advice or a recommendation for any procedure.
Keep reading
- Types of Lips: all nine lip shapes explained side by side, with the one cue that identifies each.
- What Is My Lip Shape?: quiz, photo test, and the mirror method, in one place.
- Lip Shape Meaning: what each type is said to say about you, with folklore separated from evidence.
Source consulted: Popenko et al., JAMA Facial Plastic Surgery, 2017, on lip proportion and perceived attractiveness. Note its limits: morphed images of white women aged 18 to 25.