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Dr Harris Clinic

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Dr Harris Clinic

Dr Harris is an aesthetic doctor recognised for his scientific approach and natural looking results.

12/02/2026

The vermilion border (VB) is often described as a “barrier” to filler migration.
Ultrasound suggests otherwise.
The VB represents an epithelial transition zone – not a deep structural septum.
Migration appears to relate more to depth of placement than surface entry point, and is more frequently observed with vertical vector techniques.
Technique influences anatomy.
(Reference in comments)

09/02/2026

On ultrasound, intramuscular filler is surprisingly common.
Most of the time we get away with it, until we don’t.

08/02/2026

I don’t think anyone enjoys challenging colleagues publicly.
But when medical claims are made with certainty, without evidence, and amplified to thousands of patients and practitioners, silence becomes a choice too.
This isn’t about ego or “being right”, but about responsibility to patients, to trainees, and to the profession.
We should be able to question claims without questioning character.
Do you agree?

04/02/2026

This short viewpoint in Plastic and Reconstructive Surgery outlines why current enthusiasm for aesthetic regenerative therapies outpaces evidence, and why growth factors with known oncogenic pathways warrant restraint rather than acceleration.
Link in bio.

02/02/2026

New publication.
Hyaluronidase does not “dissolve” filler – it modifies a complex filler-tissue system.
Aesthetic Surgery Journal, 2026.
Link in bio.

25/01/2026

Horizontal or vertical isn’t just a style choice.
Ultrasound shows that injection vector influences where filler actually goes.
Evidence before trends.
Swipe for the evidence. References below.

21/01/2026

Normalising our patients begins with normalising ourselves.
Agree?

16/01/2026

Lip filler expectation vs ultrasound reality.
We often imagine filler remaining where we place it.
Ultrasound shows tissue behaviour is far more complex.
In our published lip ultrasound study we found:
- The subcutaneous layer averaged

14/01/2026

Subtle lip (and chin) enhancement informed by anatomy.
Our recent lip ultrasound study highlights why depth and placement matter (see pinned post).

11/01/2026

Which is the correct depth?
(A = vertical, B = cannula, C & D = horizontal)
In our recent ultrasound study (see previous post), filler was identified deeper than the usual intended subcutaneous plane, regardless of injection technique.
Greater needle visibility may suggest more superficial placement, but surface appearance alone is not a reliable indicator of true depth.
Image C is most likely to represent subcutaneous placement – subject to confirmation by ultrasound.

07/01/2026

Very pleased to share that our study has now been published Online First in Plastic and Reconstructive Surgery (link in bio).
In this cross-sectional ultrasound study of 126 participants, we examined in vivo lip anatomy and hyaluronic acid filler behaviour in treated and untreated lips.
Key Findings:
• The subcutaneous layer of the lips averages less than 1mm thickness in both upper and lower lips, making true subcutaneous filler placement unreliable.
• Even when superficial techniques are intended, intramuscular (pars marginalis) placement is common.
• Vertical injection techniques were strongly associated with deeper and multilayer involvement, hypervascularity, and filler migration.
• Filler spread was common (62%) and markedly technique-dependent.
• Lip anatomy varied significantly with age, gender, ethnicity, BMI, and lip type.
Overall, these findings challenge the assumption that intended injection depth reliably reflects actual filler placement, and support a more individualised, anatomy-led and ultrasound-informed approach to lip filler treatment.
Grateful to my co-authors for their expertise and collaboration.

06/01/2026

The New King of Hype: NAD+
Regenerative aesthetics follows a familiar pattern. Each cycle introduces a new concept with plausible biology, limited direct aesthetic evidence, and rapidly expanding claims. Over time, the language evolves faster than the outcomes.
This pyramid is ordered by degree of claim inflation – from mixed evidence at the base to increasingly abstract and extrapolated promises at the top.
PRP/PRF formed the foundation.
Everything above reflects growing distance between biological plausibility and clinical proof.
NAD+ is the current apex – it won’t be the last.

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48 Crouch Hall Road
London
N88HJ

Opening Hours

Monday	10am - 8pm
Tuesday	10am - 7pm
Wednesday	10am - 7pm
Thursday	10am - 7pm
Friday	10am - 7pm

Website

https://harrisclinic.co.uk/

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