Could Your Skin Reveal Parkinson’s… Years in Advance?
What if your skin could signal Parkinson’s disease—before you ever noticed a single symptom?
That’s the promise behind a new line of research that could change how we detect—and possibly manage—this devastating neurological condition.
Right now, there’s no cure for Parkinson’s disease. And worse, it often goes undiagnosed until tremors, stiffness, and speech changes are already disrupting daily life. By then, much of the brain damage has already occurred.
But what if we could catch it years earlier?
Scientists at the University of Manchester have developed a test that uses simple skin swabs to analyze sebum—the oily substance your skin naturally produces.
Why sebum? Because it contains tiny molecules called volatile organic compounds (VOCs).
And according to this new research, people with Parkinson’s disease have a very specific pattern of VOCs—almost like a unique scent.
It may sound far-fetched… but it was inspired by a remarkable real-life story.
Back in 2015, a woman named Joy Milne noticed her husband’s scent had changed years before he was diagnosed with Parkinson’s. Scientists later confirmed she could identify Parkinson’s patients by smell alone.
Now, her observation has led to the development of a lab-based method that mimics her unique gift—allowing researchers to distinguish Parkinson’s patients (and even those at risk) through chemical signals on the skin.
The study included:
- 46 people with diagnosed Parkinson’s
- 28 healthy controls
- 9 with REM Sleep Behavior Disorder (RBD)—a known early warning sign of Parkinson’s
Researchers found 55 unique markers in the skin that could indicate early Parkinson’s. Those with RBD had VOC levels between healthy individuals and Parkinson’s patients, suggesting the test might also detect the disease before it fully develops.
Even more promising? Skin swabs collected over a three-year period showed changes that mirrored disease progression—offering hope that this method might someday track Parkinson’s over time.
Many older adults live with chronic conditions and may dismiss early Parkinson’s signs—like changes in sleep, mood, or digestion—as “just aging.” But if this skin test proves accurate and scalable, it could offer a noninvasive and affordable way to catch Parkinson’s early—before movement or memory are affected.
There’s no skin test available yet, but researchers are working to validate their findings in larger studies. And as new treatments emerge to slow or prevent progression, early diagnosis will become even more critical.
Here’s what you can do now:
- Pay attention to early signs. REM Sleep Behavior Disorder—such as shouting or flailing while dreaming—can be an early warning. Talk to your doctor if you or your partner notice anything unusual.
- Support brain health. Stay active, eat an antioxidant-rich diet, and challenge your mind daily. These steps may help reduce neuroinflammation and support long-term cognitive function.
- Stay tuned. This skin swab test is still in the research phase, but we’ll keep you posted as more studies come out. If validated, it could revolutionize how Parkinson’s is detected and managed—especially for older adults.
To better health, one breakthrough at a time,
Rachel Mace
Managing Editorial Director, e-Alert
with contributions from the research team
P.S. These common vitamins help fight Parkinson’s?
Sources:
Pelc, C. (2025, July 21). Skin swabs may help detect Parkinson’s years before symptoms appear. Medicalnewstoday.com; Medical News Today. https://www.medicalnewstoday.com/articles/skin-swabs-may-help-detect-parkinsons-years-before-symptoms-appear#Possible-noninvasive-tool-for-diagnosing-presymptomatic-Parkinson-s
