Why shape comes before volume

Lips are built from muscle, fat, skin and mucosa, and their shape is set by genetics, movement and the condition of the tissue around them. They change with age in several ways at once, and not all of those changes are about volume.

What actually changes

Several things happen together, which is why the overall effect is hard to name:

• The vermilion border — the edge where lip meets skin — softens and blurs.
• Fine lines spread outward from the lip edge.
• The corners of the mouth can begin to turn downward.
• Asymmetry that was always there becomes more noticeable.
• The upper lip lengthens slightly as skin loses elasticity.

The result is a mouth that photographs differently and takes lipstick differently. People often describe it as their lips having disappeared, which is usually a description of lost definition rather than lost volume.

Why the border matters more than size

In a youthful lip the border is crisp and slightly raised. It catches light, and that highlight is a large part of what makes lips read as full.

When the edge blurs, the lip blends into the surrounding skin. Contrast drops, the highlight goes, and the mouth looks smaller — even though the surface area has not changed at all.

Which is why supporting the outline often does more, visibly, than adding size would. It is also why the result tends to be harder for other people to identify, which is what most patients here say they want.

What I assess

I look at the lips at rest and in movement, and I look at them in the context of the whole face rather than on their own. A flattened upper lip alongside a prominent chin is a different problem from the same lip in a face that has lost mid-face support.

I ask what bothers you, and I ask specifically what you want left alone. People are usually clearer about the second than they expect to be.

Then we talk about whether anything is appropriate. Options are discussed at the appointment rather than advertised beforehand, and whether anything suits you is a matter for individual assessment.

On not overdoing it

A significant proportion of the people I see are cautious, and many have decided against treatment elsewhere because of results they have seen on other people. That caution is well founded and I share it.

Restraint is not a smaller version of the same job; it is a different approach to planning. Working with proportion and outline, conservatively and in stages, is slower and less dramatic. It is also much easier to live with, and much easier to adjust.

What to expect afterwards

Lips swell more than anywhere else on the face — expect that, and expect the first day or two to look like more than the final result. There is more detail in swelling, bruising and what is normal afterwards.

Results vary between individuals and nothing is permanent. All procedures carry risks, and those are discussed in detail before anything is agreed.

This article explains a process. It is general information, not clinical advice, and it is not a recommendation for any particular treatment. Whether anything is suitable for you is a matter for individual assessment.