Natural deodorant usually stops working by mid afternoon because the formula leans on a single active, most often baking soda, and on essential oils dosed too low to last. Odour is made by several different compounds, so a formula needs more than one active, plus something to absorb moisture, to hold a full day.
Nearly everyone who has tried natural deodorant has the same story. The first week is great. You tell people. Then you're in a meeting at ten past three, you shift in your chair, and there it is.
So you go back to the aluminium, and you file it under "natural doesn't work for me". Most people keep the old one in the drawer for big days. That drawer is the whole problem, and it isn't your fault.
What deodorant is actually doing
Deodorant and antiperspirant are two different products doing two different jobs, and the difference explains most of what follows.
Antiperspirant blocks. Deodorant deodorises.
An antiperspirant uses aluminium salts to plug the sweat duct, so less sweat reaches the surface. Less sweat, less for bacteria to work with, less smell.
A deodorant leaves your sweat alone. Sweat is almost odourless when it arrives. The smell comes later, when skin bacteria break it down, so a deodorant has to keep working on those bacteria and the compounds they make, all day.
That second job is harder than it sounds, and it is where most natural formulas run out of road.
Three ways natural formulas fall over
1. One active, doing everything
Plenty of natural sticks lean on a single ingredient. Baking soda is the usual one, because it works: it raises the pH so odour-causing bacteria struggle.
The bicarb catch
It also raises the pH of your skin, which sits at around 5 and would rather stay there. That is the burn people describe, and it is why so many brands have since launched a separate bicarb-free line. The full explanation is here.
Odour is not one compound. It's several. A single active tends to handle some of it and let the rest through, which is exactly how a deodorant can seem fine at 9am and tired by 3pm.
2. Essential oils asked to do the heavy lifting
Essential oils smell wonderful and have some antibacterial ability. The dose that would hold odour all day, though, is usually well above what is safe for underarm skin.
So the formula is stuck. Dose high enough to last, and it can irritate. Dose safely, and the scent lifts away by lunchtime and takes the protection with it.
3. Nothing to handle the wet
Without aluminium, you will still sweat. That's the deal, and any brand that tells you otherwise is overclaiming. What a good formula can do is absorb some moisture at the surface, so you feel drier and the bacteria have less to work with. Skip that step and the stick has nothing to give on a hot day or after a walk up a hill.
What to look for instead
You don't need to learn cosmetic chemistry. Four things tell you most of what you need to know.
- More than one odour active. Different compounds, different mechanisms, better coverage across a full day.
- Bicarb-free as standard, not as a special version. If the gentle one is a separate product at a higher price, that tells you what the normal one does.
- Something for moisture. A starch or similar, doing the absorbing.
- An ingredient list that explains itself. If a brand can tell you why each thing is in there, they know what they made.
What we did about it
bodi runs triple-action odour control: magnesium hydroxide, triethyl citrate and zinc ricinoleate. Three actives, three ways of dealing with odour, which is what gets you through the afternoon rather than the morning.
Magnesium hydroxide does a similar job to baking soda without the pH spike. Tapioca starch handles moisture. Shea butter, fractionated coconut oil and a fatty alcohol, the kind that softens rather than dries, look after the skin underneath.
It's bicarb-free in every scent. Aluminium-free in every scent. Made in New Zealand by the two of us.
We are careful about what we promise. bodi is a deodorant, not an antiperspirant. It will not stop you sweating and we will never say it does. What it will do is neutralise the odour, absorb some of the moisture, and still be there at 3pm.
Absolutely amazing so I bought the full size subscription package. I liked the different scents but couldn't believe that it lasted alllll day even running around in the heat after the baby and the dog.
Common questions
How long should natural deodorant last?
A full working day, from your morning shower to the evening. If yours fades by lunch or mid afternoon, that's the formula, not you. Reapplying at midday is a workaround for a product that isn't doing its job.
Why does natural deodorant stop working after a few weeks?
Two usual causes. Your sweating changes with the weather, exercise or hormones, so a borderline formula that just coped in winter fails in February. Or you're applying over yesterday's layer, which gives the actives less contact with skin. Apply to clean, dry skin each morning.
Does natural deodorant stop you sweating?
No. Only an antiperspirant reduces sweat, using aluminium salts. A deodorant works on the odour instead, and a good one absorbs some surface moisture so you feel drier. bodi is a deodorant, so you will still sweat.
What should I look for on the label?
More than one odour active, no sodium bicarbonate, and a starch or similar for moisture. If the brand can explain why each ingredient is there, that's a good sign.
Three scents, one case, no bicarb.
Start with the minis, find the one you keep reaching for, then throw out the backup in the drawer.
Read next
Start with the honest guide to natural deodorant in NZ. Then: why natural deodorant gives you a rash, and how to choose a scent you'll actually want to wear.
