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Everything we've published on persimmon soap, nonenal and caring for mature skin, newest first.
Heightened Sense of Smell in Menopause: What Has Been Measured
Readers in perimenopause describe smelling everything. The measured evidence points somewhere unexpected: not a sharper nose but a stronger reaction to smells.
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Why Does One Armpit Smell Worse Than the Other?
About half of people carry a different bacterial community in each armpit. Whether that makes one side smell worse to anyone else has actually been tested.
Does HRT Cause Body Odor? Following the Chain
People report HRT abolishing their body odor and causing it, often in the same thread. Here is why both can be true, and where the evidence actually stops.
Can Hard Water Cause Body Odor? Following the Chain
Hard water measurably leaves more soap behind on your skin. Whether that changes how you smell has never been tested. Here is the chain, link by link.
When an Elderly Parent Refuses to Bathe, Start With Why
Refusing to bathe is one word covering at least six different causes, and each has a different fix. Here is what the published research says about each of them.
Glycolic Acid for Body Odor: What an Exfoliating Acid Can Do
The reasoning behind swiping glycolic acid on your underarms is a chain of three steps. Only the first one has ever been measured in people. Here is the whole record.
Can a Fungal Infection Cause Body Odor? What Is Published
A skin yeast does live in your armpit and it does make volatile compounds. Published research has never connected it to body odour. Here is the whole record.
What Does Nonenal Smell Like? Every Published Description
One body-odour paper calls it greasy and grassy. Every other published description of the molecule comes from food chemists, and theirs are more useful.
What Age Does Old Person Smell Start? What the Studies Say
The figure of 40 comes from one 22-person study and a machine, not a nose. The only experiment that asked people to judge age by smell found something else.
Is Persimmon Soap Legit? How to Check Before You Buy
The molecule is real, the soap's effect on it is unproven, and a great many of the glowing reviews arrived with a free bar. Here is how to check a listing yourself.
No-Rinse Body Wash for Elderly Care: Does It Really Clean?
Rinse-free washing is treated as the compromise you accept when a shower is impossible. On the outcomes anyone has measured, it is not the lesser clean.
What Causes Strong Urine Smell in Elderly People
Urea is nearly odourless. The sharp ammonia note forms after urine leaves the body, which changes where you look for it and what actually works.
Does Febreze Remove Body Odor? What Fabric Sprays Really Do
Masking, trapping and sanitising are three different jobs sold as odour removal. None of them takes the skin oil out of the fabric, and here is why.
Hypochlorous Acid for Body Odor: What It Can and Can't Fix
Hypochlorous acid is a disinfectant, so it is aimed at the bacterial kind of body odour. Oxidised skin oil is a different molecule with no microbes in it.
How to Get Old Person Smell Out of Furniture (and When You Can't)
Furniture doesn't just trap the smell. The skin oil soaked into the foam keeps making more of it. Here's what that changes about how you clean it.
How to Tell Your Elderly Parent They Smell, Kindly
Before you say anything, work out which smell it is and where it comes from. What the evidence says about refusal, smell loss, and what actually helps.
Persimmon Soap vs Lume: Which One Does Your Smell Need?
Persimmon soap and Lume get recommended together, but they target different odor molecules in different ways. Here's how to tell which one you need.
The Nonenal Research Index: Every Human Study on Age-Related Body Odor
A plain-English index of the peer-reviewed research on 2-nonenal and age-related body odor — what each study found, what it didn't, and where the evidence stops.
How to Get Rid of Old Person Smell in a House: A Room-by-Room Guide
Three different smells get called "old person smell" in a house, and each needs a different fix. Here's how to tell them apart before you spend money.
Perimenopause Body Odor: Is It Nonenal, Sweat, or Something Else?
Perimenopause often brings two different smells at once: sharp underarm sweat and a stale, greasy skin odor. Here's how to tell them apart and what fixes each.
How to Get Old Person Smell Out of Clothes: A Laundry Guide to Nonenal
Nonenal is oil-soluble, so it survives a normal cold wash. Here's the laundry routine that actually strips it out of shirts, pillowcases and sheets.
Persimmon Soap Side Effects: Dryness, Stinging, Rash and Who Should Skip It
Is persimmon soap safe? The side effects people report (dryness, stinging, rash), why they happen, how to patch-test, and when to see a doctor.
Does Persimmon Soap Actually Work? What the Science Says (and What Users Report)
Does persimmon soap actually work? We looked at the nonenal research, the persimmon tannin evidence and hundreds of user reports. Here's where the evidence stands.
Persimmon Soap Not Working? 8 Reasons Why (and What to Try Next)
Still smell it after trying persimmon soap? The 8 most common reasons it fails, drawn from real user reports and research, and what to try next.
How to Use Persimmon Soap: Where, How Often, and Where Not To
How to use persimmon soap for nonenal odor: which areas to wash, how often, whether it works on hair or face, and where not to use it.
Can You Smell Your Own "Old Person Smell"? How to Check Without Asking Anyone
Most people can't smell their own nonenal odor. Here's why, the signs to look for, and a simple 14-day pillowcase check you can do privately.