Sentinel · Hormone monitoring
Stay strong for years, not just for now.
Sentinel is how you stay strong without your heart, your blood or your long-term health quietly paying for it. One doctor, watching the things that go wrong slowly.
£180 a month, first three months up front. £90 a month alongside practice membership.
Why it matters
The harm you can't feel, and won't see coming.
You take these compounds for strength, performance, and how you look and feel. The thing that takes all of that away is the complication you didn't see coming.
Most of the harm builds quietly. Your blood gets thicker. Your heart works harder. Your cholesterol shifts. None of it hurts and none of it shows, right up until the day it does. The men who get caught out aren't reckless. They just had nobody watching the right things at the right time.
That is the difference between hoping you're fine and knowing you are.
Why not just run your own bloods
Numbers are the easy part. Reading them is the job.
You can order a panel online for about a hundred pounds. That gets you numbers. It doesn't get you anyone deciding what they mean.
A result can sit inside the reference range and still be wrong for you. And the moment that matters isn't when a number goes red. It's when it starts moving in a direction it shouldn't.
Your bloods tell you something changed. My job is to tell you what it means and what to do about it.
What you get
Close monitoring, managed by one doctor.
Sentinel is built on continuity: the same doctor, the right tests for where you are, tracked over time, with a clear read on every result.
The right tests for you
No standard panel. What I run is chosen from your history, your examination and what you are actually taking, and it changes as your results move. You pay for tests picked for you.
Reviews through the year
Regular reviews, usually quarterly and sooner when a result is moving. I book them, so you never chase. Most can be done remotely; you come in once a year, and any time a result means I need to see you.
Your written record
After the baseline, a written summary of where every marker stands and what I am watching. After each review, a short note on what moved and what we are doing about it. I read every result myself, including bloods you have run elsewhere.
A direct line to me
Between reviews you can reach me about a result, a worry, or a change to your plan, without booking a full appointment.
What that usually includes
The core, on everyone. Haematocrit and full blood count, ApoB and the full lipid panel, HbA1c, liver enzymes, eGFR, hs-CRP, PSA, and the full hormone picture: total and free testosterone, oestradiol, LH, FSH and SHBG.
Added for what you are running. On growth hormone, IGF-1 and fasting glucose. On oral compounds, liver function more often and closer. On anything aromatising heavily, oestradiol tracked through the cycle rather than once. On long or stacked cycles, prolactin, ferritin and a blood-borne virus screen.
Added for you. Whatever your history, your examination or a previous result makes worth watching. That list is yours and nobody else's, and I tell you why each one is on it.
Sentinel and the practice
One thing, done closely.
Sentinel and the practice membership are two different things for two different people.
- Sentinel watches one risk closely, on the tight schedule a man actively using these compounds needs. It doesn't cover acute care or everyday illness.
- Membership is proactive medicine for the whole of your life, with a yearly assessment and a plan built around where your health is heading.
- Both, if you want them. Most men take Sentinel on its own. Alongside membership it runs at the member rate.
What it costs
What the fee covers, and what it doesn't.
The fee buys my time and my judgment. You pay for the bloods at exactly what they cost me, with nothing added, and I tell you what your baseline panel comes to before anything is booked.
Sentinel
The oversight that keeps you safe inside the choice you've made. Your first appointment is in person and part of the fee, not a separate charge.
- The in-person start, every review, your written record and the direct line, all inside the fee, so nothing you actually need arrives as a separate charge
- Reviews quarterly, and sooner when a result moves, which is what catches a problem while it is still easy to fix
- Testosterone replacement prescribed and managed where there's a clear medical reason, so what you're on is handled by the doctor who can see everything else
- Your bloods at cost with nothing added, so I earn the same whether I test you or tell you that you don't need it
How long you are committing
Three months, paid up front, because that is the first point at which a second set of results tells us anything. After that you carry on month by month and stop with a month's notice.
What you can count on
You keep everything. If you stop, your baseline, every reading since and every written note are yours, to take to any doctor.
Nothing is ordered without you knowing the cost first. No test appears on a bill you have not already agreed to.
Already in the practice?
Sentinel runs alongside your membership at £90 a month, paid monthly from the start with no initial term. It's charged separately and never folded in, because its scope, the consent it needs and the extra risk it carries are its own.
The boundary
Monitoring and harm reduction. Nothing sold on the side.
My job is to measure what these compounds are doing to you and keep you as safe as that choice allows. I don't prescribe or supply them, and I won't advise you on cycles, doses or stacks.
Testosterone replacement is the one exception, where there is a clear medical reason for it. I prescribe and manage that, kept in a healthy range and adjusted to how you feel and what your bloods show. Never on request alone.
Common questions
Straight answers, no judgement.
Will you judge me for using these compounds?
No. You've made an informed decision and you're an adult. My job isn't to talk you out of it, it's to make sure you understand what's happening inside your body and to act on it before something becomes a problem. You'll get straight clinical information, not a lecture.
Do you prescribe anabolics or advise on cycles?
No anabolics, and no advice on cycles. I don't prescribe or supply the performance compounds, and I won't tell you what to run or at what dose. Testosterone replacement is a separate matter: where there's a clear medical reason for it, I prescribe and manage that, and watch your safety on it. The firm line is the performance compounds, and it's what keeps the service defensible for both of us.
Is any of this legal?
Yes. Sentinel is medical monitoring and, where it's warranted, testosterone replacement, both straightforward, legal and good medicine. I prescribe testosterone replacement only on a clear medical indication, and I don't prescribe or supply the performance compounds. Watching your health and keeping you safe is simply good medical care.
I already run my own bloods. Why do I need you?
Tracking numbers is the easy part, and you can already do that yourself. What you can't do is spot a pattern forming before any single result looks wrong, read a number against your symptoms and your training, examine yourself, or decide what to act on and when. That is the whole point of a doctor rather than a spreadsheet. More in why normal blood tests can still miss real harm on testosterone.
Will this be visible to my NHS GP?
Only with your consent. This is a private, confidential service. I'd always encourage joined-up care and I'm happy to write to your GP if you want that, but nothing is shared without your say-so. More in can your NHS GP know about your testosterone use?.
What do you actually monitor?
The things these compounds put under strain: how thick your blood is getting, your cholesterol and heart-risk markers, your liver and kidneys, your blood sugar, your full hormone levels, your prostate marker, signs of inflammation, and a blood-borne virus screen where it's relevant. The exact tests depend on what you're using and how your results move over time. I'll always tell you why we're checking something.
Get in touch
Enquire about Sentinel.
You have already decided what you are going to run. What you have not decided is whether you get to keep the results without your heart, your blood or your liver paying for it in ten years. That part is a choice too, and it is the one I can do something about.
No judgement, no lecture, and nothing on your NHS record without your say-so.
Send a note and I'll come back to you myself, within one working day.