Is Your Deodorant Affecting Your Breast Health? What Every Woman In Perimenopause Needs To Know
May 23, 2026
I don't wear deodorant at home.
Haven't for years.
And I'm not sorry about it. π
But recently I jumped on my Instagram stories and asked everyone:
"Do you wear deodorant every day?"
The responses had me crying laughing.
One person said no.
And then added, "and that's why I smell."
I'm sure she absolutely does not. π
But it got me thinking. Because the rest of the responses were really interesting, women talking about Fussy, Rock Crystal activated with water, and other natural alternatives.
And it made me realise, most women have never stopped to question what's actually in their deodorant.
So that's what I want to talk about today.
Because this isn't just about smell.
This is about your breast health.
How Aluminium In Deodorant Affects Your Hormones
Your armpits sit right next to your breast tissue. Right next to your lymph nodes.
Conventional antiperspirants contain aluminium salts. And aluminium doesn't just sit on your skin, it gets absorbed. Once inside your body, it can mimic oestrogen and confuse your cells.
Scientists call it a metalloestrogen. A fake hormone signal. In perimenopause, your oestrogen is already shifting. You don't need extra interference.
And antiperspirants physically block your sweat glands. Sweating is how your body detoxifies. Blocking that, right next to your breast tissue, every single day?
Worth thinking about? Right?
Not All Natural Deodorants Are Equal
Here's where most women get caught out.
Some deodorants labelled "aluminium free" still contain potassium alum which is technically still an aluminium compound. Just a larger molecule.
Most practitioners consider it safer. But if you want to avoid aluminium in every form, read the full ingredient list. Not just the front of the pack.
Watch out for:
- Aluminium chloride
- Aluminium chlorohydrate
- Aluminium zirconium
- Potassium alum
The Best Natural Deodorants For Women In Perimenopause
What I'm currently using, Pit Putty, Cinnamon & Cedarwood π€
100% natural, aluminium-free in every form, paraben-free, plastic-free, and vegan. It doesn't block my sweat. It works with my body's chemistry, not against it.
I still sweat the way I'm supposed to. I just smell absolutely divine doing it. π
Get it here: www.pitputty.co.uk
Other natural deodorants worth considering:
- Fussy: refillable, aluminium-free
- Wild : refillable, great scents, no aluminium
- Nuud: lasts multiple days, completely aluminium-free
- Salt of the Earth: (check the label, some variants contain potassium alum)
- Rock Crystal : activated with water (contains potassium alum, better than conventional, but worth knowing)
Knowledge is power and now you can choose better for yourself.
Not Sure What Your Hormones Are Doing Right Now?
Before we go deeper, if you've ever wondered whether your symptoms are connected to your hormones, this is for you.
I've created a free quiz that takes two minutes and gives you real clarity on what might be going on inside your body.
Now, let's talk about what's really going on with your oestrogen.
How Your Body Metabolises Oestrogen, And Why It Matters
Most women think about oestrogen in terms of how much they have.
Too much.
Too little.
In balance.
But here's what most GPs never tell you.
It's not just about how much oestrogen you have. It's about how your body is metabolising it.
Oestrogen needs to be broken down, processed, and cleared from your body safely every single day. When that process works well, you feel well. When it doesn't, oestrogen recirculates. Builds up. And that has real consequences for your weight, mood, sleep, breast health, and risk of oestrogen-driven conditions.
Two tests show me exactly what's happening. And they change everything.
The DUTCH Test, Comprehensive Hormone Testing For Women
The DUTCH test, Dried Urine Test for Comprehensive Hormones, is one of the most powerful tools available for understanding your hormonal health.
Unlike a standard blood test that gives you a snapshot in time, the DUTCH test measures both your hormones and their metabolites. It shows how your body is actually processing and clearing oestrogen, through phase 1 and phase 2 liver detoxification pathways.
If those pathways aren't working efficiently, oestrogen doesn't clear. It recirculates. And that matters enormously for perimenopausal and post -menopause women.
The DUTCH test also measures cortisol, DHEA, melatonin, testosterone, progesterone, and organic acids, a full picture of your hormonal system, not just one number in isolation.
This is the difference between guessing and knowing.
Your Gut Health And Your Oestrogen Are Connected
Here's something that might surprise you.
Your gut plays a direct role in how your oestrogen behaves.
There is a collection of gut bacteria called the estrobolome. Think of it as your gut's hormone department. Its job is to help your body process and clear oestrogen safely.
When your gut microbiome is balanced, oestrogen is metabolised and excreted properly.
When it's not, oestrogen gets reabsorbed back into your bloodstream instead of being cleared.
That disruption in oestrogen metabolism has been linked to weight gain, metabolic issues, endometriosis, and increased risk of oestrogen-driven cancers, including breast cancer.
Your gut bacteria are literally deciding what happens to your oestrogen.
Most women have never heard of the estrobolome.
A comprehensive gut test shows the state of your microbiome, including the bacterial strains responsible for oestrogen metabolism, and gives us a clear picture of what needs to be supported.
How Your Deodorant, Hormones And Gut Health Are All Connected
Your deodorant.
Your oestrogen metabolism.
Your gut health.
These are not separate conversations. They are all part of the same system.
When you apply aluminium near your breast tissue every morning, you add to the load.
When your liver isn't metabolising oestrogen efficiently, it recirculates.
When your gut microbiome is out of balance, oestrogen gets reabsorbed instead of cleared.
And when all three are happening at the same time?
That's when women feel stuck. Exhausted. Gaining weight they can't shift. Living with symptoms they've been told are just part of getting older.
They're not. They're signals.
And they can be addressed, when you know where to look.
Find Out What Your Hormones Are Really Doing
Start with two minutes.
My free quiz will help you understand what your symptoms might be telling you about your hormones right now.
