The short version: Dermatica is a UK prescription skincare subscription. You fill in an online consultation, a dermatologist reviews it, and they prescribe a formula built around your skin, which might be tretinoin, azelaic acid, niacinamide, hydroquinone, or some combination. Mine happens to be tretinoin 0.05% with niacinamide 4%. I’ve got type 1 rosacea and I buffer it with moisturiser underneath, which is the only reason I can tolerate it at all. I’ve been on it for years and I pay for it myself.
Okay so let’s talk about tretinoin. Specifically, my tretinoin. The one that shows up through my actual letterbox every month in a cute little tube, like a tiny skincare present I sent myself.
I’ve been on Dermatica’s prescription tretinoin for ages now and honestly? It’s become one of those products I don’t even think about anymore. It’s just… there. Part of the routine. Which might sound boring, but when you’ve got the backstory I’ve got, boring is a massive win.
The bit before Dermatica (don’t @ me, I know)
So before Dermatica, I was doing the thing. The thing where you go on eBay and find sellers shipping tretinoin in from other countries, and you just… buy it. Cross your fingers. Hope the tube that turns up is actually what it says it is and not some random cream that’s been sitting in someone’s garage for who knows how long.
I do not recommend this. At all. Big fat expensive nope, looking back.
And here’s the bit that really got me. With a random eBay tube, there’s no one to actually ask when things go wrong. No clinician, no plan, no “here’s how to ease into this.” Just you, a tube, and the internet’s vibes-based advice.
And things went wrong. The first time I properly got into tretinoin, I went way too hard, way too fast. No easing in, no slow build-up, just full send because I figured more must mean faster results. Wrong. So wrong. Within days my face turned into a red, crusty, peeling mess. Properly alarming. I’m talking weeks, not days, of just trying to fix my skin barrier before I could even think about touching tretinoin again. Miserable. Completely avoidable. And entirely on me, because I had nobody telling me to slow down.
I learned my lesson. Start slow. Always.
So by the time I was looking at Dermatica, I wasn’t just hunting for “somewhere that sells tretinoin.” I wanted someone to actually tell me what to do with it. A proper plan, tailored to my skin, that wasn’t just me guessing and hoping my face survived the week.
So what is Dermatica, and where does tretinoin come into it?
For anyone who hasn’t come across it, Dermatica is basically like having a dermatologist’s prescription pad delivered straight to your door, except it’s all done online. You fill in a consultation, a clinician actually reviews it, and they prescribe you actives based on your real skin, not just “here’s the strongest one we’ve got.”
Tretinoin, azelaic acid, niacinamide, sometimes hydroquinone depending on your plan, all tailored to you specifically. My current formula is tretinoin 0.05% with niacinamide 4%, and I’ve been on it long enough now that I genuinely couldn’t tell you the last time I had to think hard about it.
It’s set up as a proper monthly cycle too. Nightly use (or whatever your clinician’s actually told you, since everyone’s plan is a bit different and starts low before building up), automatic refills so you’re never left scrambling, and it just… shows up. Through my actual letterbox. No missed deliveries, no waiting in for a courier, no awkward “sorry you were out” card on my doormat. Just a little tube that fits through the post like it’s nothing.
If you ever need to slow things down (say, if your skin’s having a moment and you want to stretch a tube out longer), you’ve got options too. You can switch to using it every other night instead of nightly, which a lot of clinicians actually recommend anyway if irritation shows up. Or you can just log into your Dermatica account and pause or delay your next delivery. Both work. Just don’t go rogue and start randomly skipping days without thinking it through, because it’s a regulated prescription cycle for a reason. (Trust me. I’m the cautionary tale.)
What strength tretinoin does Dermatica prescribe?
Depends what they’ve put you on. Your formula is whatever the dermatologist decides your skin needs, so some people’s have tretinoin in it and some people’s don’t.
Where it does, Dermatica works from 0.025% up to 0.1%, and yours can be adjusted as you go. That second bit matters more than the number.
Mine is tretinoin 0.05% with niacinamide 4%. Not a recommendation, just what I’m on.
The usual approach is to start at the bottom and climb. 0.025% for most people starting out, 0.05% as the long-term middle, and 0.1% at the top end that plenty of people never need. Starting too high is the single most common reason someone tries tretinoin once and never goes back to it.
I would know.
Why I use it (and why I’m not “anti” anything)
I use this mainly for anti-aging, although honestly? I hate that phrase a bit. I’m not ANTI aging. I plan to be aging until the absolute last second of my life, ideally as a cackling old woman with no filter and even less hair. I’m extremely pro it, in fact.
But “anti-aging” is the term everyone searches for and the term everyone understands, so that’s what I’ll call it here, even if internally I’m rolling my eyes a little every time I type it.
Tretinoin’s whole thing is it speeds up cell turnover, which helps with fine lines and texture. And for me that’s exactly what’s changed. My texture is so much smoother than it used to be, less of that rough, uneven feel I had going on for years. It’s a slow burn though. Nothing dramatic happens overnight, it’s more that one day you just notice your skin feels different under your fingers, in a good way.
How I buffer tretinoin for rosacea (because rosacea has opinions)
Now here’s where my eBay disaster actually paid off, weirdly. Because I’d already learned the hard way that tretinoin can absolutely wreck your skin if you go in too aggressively, and on top of that, I’ve got type 1 rosacea. So I can’t just slap tretinoin straight onto bare skin and call it a night. My skin would riot. Properly riot.
So I buffer it. Properly buffer it.
What that looks like in practice: moisturiser first, then the tretinoin goes on top of that, and depending on how my skin’s feeling that night, sometimes I’ll even sandwich in another layer of moisturiser on top of that again. Moisturiser, tret, moisturiser. A little tretinoin sandwich, if you will (you probably won’t, but here we are).
This has genuinely been working so well for me. No stinging, no that horrible tight raw feeling that took me weeks to recover from the first time around, none of the usual drama. Just slow, steady results without my face staging a full protest.
If you’ve got sensitive skin or rosacea and you’ve tried tretinoin before and bounced off it because it was too much, buffering might honestly be the difference for you too. It was for me, and now it’s just a non-negotiable part of how I do it. Start slow, buffer, and don’t be me at the start.
Will tretinoin make you purge, or is that just irritation?
Two things get mashed together here constantly and they’re not the same.
Purging is your skin pushing out congestion that was already forming under the surface. Tretinoin speeds up cell turnover, so spots that were going to surface over the next six weeks all turn up in about three instead. It happens where you normally break out, and it passes.
Irritation is your barrier being damaged. Redness, tightness, stinging, flaking in places you don’t break out at all. That isn’t the treatment working. That’s too much of it, too often.
I’ve had both, which is how I know they feel nothing alike. I purged a bit when I started on Dermatica and it was small and brief and over quickly. That crusty peeling fortnight from my eBay era was not a purge. That was me going in nightly at full strength with no build-up and nobody around to tell me to stop.
Which is why I go on about the clinician bit. If you’re purging, you carry on. If you’re irritated, you back off. Get that call wrong in either direction and it costs you months.
How long does tretinoin actually take to work?
Longer than you want it to.
The first four to six weeks are the adjustment. Dryness, flaking, possibly some redness. This is the stretch where most people decide it isn’t working and quit, which is a shame, because nothing has even started yet.
Around three months in is where texture begins to shift. Subtle, but it’s the first thing you’ll notice.
Fine lines are a six-months-minimum job and realistically closer to a year. Anyone promising faster than that is selling you something.
The honest verdict
So is it worth it? For me, completely. Knowing exactly what’s in my tretinoin, knowing it’s actually been prescribed for my skin and not just whatever strength I clicked on a random eBay listing, and having it land through my door every month without me having to think about it… that’s worth a lot. More than I realised at the time, honestly.
It’s not the most exciting skincare review I’ll ever write, because there’s no dramatic before-and-after, no “this changed my life overnight” moment. It’s just quietly, consistently doing its job. Which, after the red crusty peeling eBay years, is honestly all I wanted in the first place.
One more thing before I go. If you’ve been following my hair loss content, Dermatica also do a prescription minoxidil mix for hair loss, and I’m genuinely considering trying it next. I’ll obviously do a full post on that if and when I do, because you know I will have Thoughts.
What does Dermatica cost?
It’s a monthly subscription rather than a one-off purchase, and that framing took me a minute to get used to. You’re not buying a tube. You’re paying for the consultation, the clinician reviewing it, the formula being made for you, and it landing through your letterbox, all as one monthly thing.
I’m not going to quote you a price, because tiers change and mine isn’t necessarily yours. What you pay depends on the formula you end up on, and you’ll see it before you commit to anything.
NEVEEN50 takes 50% off your first three months, and that lands on exactly the window where you’re still finding out whether this suits your skin. That’s the part I’d want if I were starting again. Paying full price while you and a clinician are still adjusting things is the worst version of this.
Where to get it
Dermatica – personalised prescription skincare subscription
- Use code NEVEEN50 for 50% off your first 3 months on your personalised formula subscription (this is the one that covers prescription tretinoin, azelaic acid, and other actives)
- Use code NEVEEN15 for 15% off Dermatica Routine Essentials products
Shop Dermatica here – or see full details and FAQs for NEVEEN50 and NEVEEN15 at Dermatica
Questions I get asked about Dermatica and tretinoin
The stuff people ask me most about this one.
Is Dermatica tretinoin actually legit?
Yes, and that’s the whole point of it for me. A clinician actually reviews your consultation and prescribes based on your skin, it’s a regulated prescription, not a “pick your strength” subscription box. Compared to my eBay years, it’s night and day.
Does Dermatica always prescribe tretinoin?
No. Tretinoin is one of several prescription actives Dermatica works with, alongside azelaic acid, niacinamide and hydroquinone among others. What ends up in your formula is decided by the dermatologist reviewing your consultation, based on your skin and what you’re trying to treat. Plenty of Dermatica customers are on formulas with no tretinoin in them at all. Mine has it. Yours might not.
What strength tretinoin does Dermatica prescribe?
Where your formula contains tretinoin, Dermatica works in strengths from 0.025% up to 0.1%, and it can be adjusted over time. Mine is tretinoin 0.05% with niacinamide 4%. That’s my formula specifically though, everyone’s is personalised to them, so don’t take mine as a starting point for yours.
Can you use tretinoin if you have rosacea?
Carefully, yes. I’ve got type 1 rosacea and slapping it straight onto bare skin was a disaster. Buffering (moisturiser first, sometimes moisturiser after too) is what made it actually workable for me. Talk to your prescribing clinician before you start though, not just me on the internet.
What does “buffering” tretinoin even mean?
Putting moisturiser down before the tretinoin instead of applying it to bare skin, and sometimes layering another moisturiser on top too. It softens how the active hits your barrier. Genuinely the difference between my skin rioting and my skin behaving.
Does Dermatica’s tretinoin make you purge?
Tretinoin can cause purging, which is congestion already under the skin surfacing faster than it otherwise would. It shows up where you normally break out and it passes. I purged a bit in the first few weeks and it was minor and short-lived. What people more often get, especially early on, is irritation: redness, tightness and flaking in areas they don’t normally break out in. Purging means carry on. Irritation means back off. They are not the same thing and the response to each is opposite.
How long does tretinoin take to work?
Four to six weeks of adjustment first, where dryness and flaking are normal. Texture starts shifting around the three month mark. Fine lines take six months at an absolute minimum and realistically closer to a year. It’s a slow product and anyone telling you otherwise is selling you something.
Can you pause or cancel your Dermatica subscription?
You can log into your account and pause or delay your next delivery, which is what I do if I want to stretch a tube further. You can also switch from nightly to every other night, which a lot of clinicians suggest anyway if irritation turns up. Don’t just start randomly skipping without thinking it through, because it’s a regulated prescription cycle for a reason.
Do you have to stop tretinoin in summer?
No. The idea that you pause over summer and restart in autumn is common and it mostly just means going through the whole adjustment period twice for nothing. Daily SPF is the actual answer, and it’s non-negotiable on tretinoin regardless of the season.
Where can you actually buy tretinoin safely in the UK?
It’s prescription-only here, so a proper route like Dermatica, where a clinician assesses you first, is the way to go. Random overseas sellers on eBay or Amazon are exactly what got my face into a crusty red mess the first time. Learn from me.
More on my rosacea and skincare routine
If this post is the start of your rosacea rabbit hole, these go alongside it:
- 10 Korean Skincare Products That Helped My Rosacea – the K-beauty side of my routine
- The Anua Azelaic Acid Serum Review – my other prescription vs. over-the-counter active comparison
- Seborrhoeic Dermatitis on the Scalp vs Face – if you’re dealing with both rosacea and seb derm like me
- 6 Malassezia Safe Moisturisers That Don’t Feel Like Grease – good buffering options if you’re also managing seb derm
I’ve been a genuine, paying Dermatica customer for a long time and this is based entirely on my own experience. Some links in this post are affiliate links, meaning I may earn a small commission if you buy through them, at no extra cost to you.
