Back in July I put Head & Shoulders Menthol Fresh against my seb derm for a week and gave it 4.5 out of 5. So here’s a fun one. The man who founded Hairetic started his career at Procter & Gamble, and his actual job was selling Head & Shoulders to Tesco.
Now he runs his own tiny British anti-dandruff brand. Three products, bottles covered in loud, colourful art, and a whole philosophy built around the idea that dandruff is normal and nobody should feel embarrassed about it. I’ve got a code for you too, so let me tell you who they are.
One thing up front: I haven’t tried these yet. So what follows is who Hairetic are, what the three bottles are and what’s in them. I’ll tell you how they actually perform on my scalp once I’ve used them.
Hairetic discount code: NEVEEN30
30% off your order at hairetic.com. One use per customer (and per household), and it runs until 15 November 2026.
Who are Hairetic?
Hairetic Ltd is a small, independently owned UK brand, new enough that you’ve probably not heard of them yet, and it does one thing: anti-dandruff haircare.
Andrew Rayner, who founded it, has spent nearly 20 years in UK health and beauty. After P&G, his most recent job was Managing Director of a specialist hair-growth brand within the Medik8 group, which is where he says he really went down the rabbit hole on scalp biology, hair loss and dandruff. His big takeaway from all of that was that hair health starts at the scalp, and that most of us don’t pay the scalp nearly enough attention until it starts itching or flaking at us. (Guilty.)
Everything is made in Britain, using British suppliers wherever they can. It was finalised in UK labs and went through safety testing, stability testing, dermatological testing on sensitive skin and user trials before it launched.
Why they’re called Hairetic
It’s a pun on heretic. Their own definition of a Hairetic is someone who questions the popular opinion on how we treat our scalp and hair, and the whole brand runs off a little manifesto. Question everything, from research to ingredients. Put the community first. Always support environmental charities. Don’t make it boring.
And my favourite line, which is that dandruff is normal. Around half the world’s population gets it at some point, so stop treating it like a disease. I’ve stood in Boots squinting at the back of enough shampoo bottles to appreciate a brand saying that out loud.
The “don’t make it boring” bit shows. Theres a little game on their site called Dandruff Defender where you tap on shoulders to shoot the flakes off, and high scores win discounts (yes, really). They also run a blog on their site with proper reads on things like dandruff on your eyebrows, whether hard water makes flakes worse, and what happens to your scalp when you wash your hair less.
Hairetic shampoo and conditioner: the full range
It’s a small line-up on purpose. Three products, all 250ml, all £12, and they’re the three bottles in the photo up top. Basically, anti-dandruff haircare you’d actually be happy to leave out in the bathroom. Nothing about those labels looks medicated.
Hairetic Anti-Dandruff Sensitive Shampoo
First up, the Sensitive Shampoo, their original and the one meant for regular use. Lather, leave it a minute, rinse. Jasmine and coconut.
Hairetic Anti-Dandruff Sensitive Conditioner
The Sensitive Conditioner is its other half, silicone free, with linseed, argan and coconut oils for your lengths. I’ll come back to those oils in a minute, because they matter if you’ve got seb derm.
Hairetic Anti-Dandruff 2-in-1 Shampoo & Conditioner
Then there’s the 2-in-1 Shampoo & Conditioner, for shorter hair or a shorter shower. Bergamot and sandalwood, and they say two or three times a week rather than daily.
If I was picking one, it’d be this. Not for any clever reason. I shaved my head back in July and I’m growing it out from scratch, so a separate conditioner wouldn’t have much to do on my head right now.
What’s in Hairetic?
All three are built on the same base. Organic aloe vera to soothe the scalp, rosemary, willow bark and nettle extracts (willow bark contains salicin, a plant relative of salicylic acid), and panthenol and glycerin for the hair itself. Hairetic say the range is 99% natural origin ingredients, with no silicones, no colours, no artificial fragrance, no parabens and no SLS. The full ingredient list for each one is on its product page, and I’d go and read it rather than take my word for any of this.
There’s an actual antifungal in there too. Hairetic describe both the Sensitive Shampoo and the 2-in-1 as built with organic willow bark and piroctone olamine, and they’ve got a whole page on why piroctone olamine is their preferred active. That’s worth knowing, because it’s the same active as the Philip Kingsley toner that lives in my own routine, and it’s the bit that actually goes after Malassezia.
One note for my seb derm lot. The conditioner’s linseed, argan and coconut oils are the kind of plant oils I flag in my Seb Derm Directory, because they can feed Malassezia. Keep it on your lengths and off your scalp, which is how Hairetic tell you to use it anyway.
Hairetic ran independent user trials, and the two are separate. 55 people used the shampoo and conditioner together for four weeks and 87% reported fewer visible flakes. They trialled the 2-in-1 on its own with 81 people, where 85% saw visibly reduced dandruff after four weeks.
Is Hairetic vegan and cruelty free?
Yes to both. The range is certified by The Vegan Society and by Cruelty Free International. Bottles are 100% recycled Prevented Ocean Plastic, which is plastic collected from coastal communities at risk of ocean pollution, and 1% of their turnover goes to environmental causes through 1% for the Planet.
Where to buy Hairetic
The main place is their own site, hairetic.com, where delivery is free over £10 and there’s a multibuy running (buy any two products and save 16%, buy any four and save 22%). There’s a stockist finder on their site too if you’d rather pick a bottle up in person, and a student and teacher discount page. You’ll find them on Instagram as @hairetic.hq.
How to use my Hairetic discount code
Pop whatever you want in your basket and type NEVEEN30 into the discount box at checkout. One use per customer, and per household, so spend it on the order you actually want.
Shop the Hairetic range, and the rest of my codes live on my discount codes page.
FAQ
Is there a Hairetic discount code?
Yes. My code NEVEEN30 gets 30% off at hairetic.com. It’s one use per customer and per household, and it expires on 15 November 2026.
Who owns Hairetic?
Hairetic Ltd is an independent UK brand founded by Andrew Rayner. He has nearly 20 years in UK health and beauty behind him, starting at Procter & Gamble and most recently as Managing Director of a hair-growth brand in the Medik8 group.
Where is Hairetic made?
In Britain. Hairetic is a UK brand and uses British suppliers wherever possible.
What products does Hairetic sell?
Three: the Anti-Dandruff Sensitive Shampoo, the Anti-Dandruff Sensitive Conditioner and the Anti-Dandruff 2-in-1 Shampoo & Conditioner. All three are £12 for 250ml.
Is Hairetic vegan and cruelty free?
Yes. The range is certified by The Vegan Society and by Cruelty Free International.
More for your scalp
- The Seb Derm Directory: Scalp and Hair Products That Actually Help (UK Edition) – every scalp product I’ve screened, split by category
- Head & Shoulders Menthol Fresh Review – the one I put against my seb derm for a week
- The Scalp Care Routine I Actually Stick To
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