I don't often argue for prohibition. In this case I do.
The Women and Equalities Committee called this year for an immediate ban on liquid buttock augmentation. I'd support that, and I'd go further: I think the case for it is stronger than the case made for most of the other restrictions currently under discussion.
The reasoning is anatomical, not ideological
Every argument for the safety of a filler procedure rests on the same foundation — that the practitioner can control where the material goes, in a plane where a misplacement is recoverable. In the face, with small volumes, in a region where the vasculature is reasonably well described and where an occlusion is visible early and treatable, that foundation holds up. Imperfectly, but it holds.
Buttock augmentation removes every element of it. The volumes involved are not comparable to facial work — they are larger by orders of magnitude. The vessels are large. The consequence of intravascular placement is not a patch of compromised skin; it is a pulmonary or fat embolism, and the time available to intervene is measured differently. You cannot dissolve your way out of it.
The surgical version of this operation, fat transfer to the buttocks, has one of the highest mortality rates in cosmetic surgery, and the profession responded to that by changing technique and restricting planes. The non-surgical version carries a related risk profile and has been performed, in this country, by people with no surgical training at all, sometimes in unregulated premises, frequently with products of unverified provenance.
The objections
The usual one is that a ban pushes the procedure underground. I take it seriously and I don't think it holds here. It is already underground. A ban does not create a black market in this procedure; it removes the veneer of legitimacy that currently lets it be advertised openly, priced competitively, and presented to patients as a reasonable alternative to surgery.
The second is autonomy, and it's the one I find hardest. Patients are adults and can consent to risk. But consent requires an accurate understanding, and I have yet to meet a patient who arrived understanding that the realistic worst case of this procedure is death rather than disappointment. Where the gap between perceived and actual risk is that wide, and where the harm is that severe and that fast, I think restriction is defensible.
One thing the report doesn't say
A ban on the procedure without action on cosmetic tourism simply relocates it. Those two recommendations need to travel together or the first one accomplishes very little.