About the founder

Hi, I'm Sarah, a clinician who learned marketing so you don't have to.

I built Inject Digital for one reason: I watched brilliant practitioners stay invisible online while less-skilled clinics filled their diaries. I know healthcare from the inside, and I know exactly how patients decide who to trust.

Aesthetic clinic marketing specialist Sarah McDonald, founder of Inject Digital, in an aesthetic clinic
Sarah McDonald, Founder & Nurse Prescriber

From critical care to clinics

My background is clinical. I trained as a nurse prescriber with critical-care experience before moving into aesthetics in 2018. For a while I balanced an NHS career with clinic work, until the demands of doing both led to burnout.

When the pandemic closed my clinic, I had time to step back and learn something new. I threw myself into digital marketing, SEO, social media, paid ads and content strategy, and something clicked.

Aesthetic clinic marketing specialist Sarah McDonald reviewing a clinic's website and search visibility
Reviewing a clinic's website and search visibility.

The problem I couldn't unsee

The more I learned, the clearer it became: amazing practitioners weren't getting booked because their online presence wasn't working for them. They were brilliant in the treatment room and invisible everywhere a patient actually looks.

Skill in the clinic means nothing if patients can't find you, or don't trust you when they do.

So I founded Inject Digital to take the guesswork out of SEO, AI visibility and patient attraction, built specifically for healthcare, by someone who's worked in it.

Why a healthcare-only focus matters

Healthcare marketing isn't like selling trainers. Patients are cautious, regulation matters, and trust is everything. I understand how patients research a clinic, what makes them book, and the trust signals that both Google and AI tools now reward. That insider view is the difference between generic marketing and strategy that actually fills your diary.

If you want to understand how I think about choosing the right partner, read my honest guide on choosing an aesthetic clinic marketing agency, even if you don't choose me.

The Business of Aesthetics podcast

I share what's working in clinic growth, AI search and patient attraction on my podcast, The Business of Aesthetics. Practical, candid, and made for clinic owners. Have a listen to the latest episode:

Listen on Spotify

How I work

What you can expect

Honest, jargon-free

No vanity metrics, no buzzword bingo. Just clear strategy tied to enquiries and revenue.

Results that compound

SEO and AI visibility build authority that keeps paying off, month after month.

A real partner

You work directly with someone who's been in the clinic, not a faceless account manager.

Let's get your clinic found

Book a free visibility audit and I'll show you exactly where patients are slipping away, and how to win them back.