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In the latest episode of The Chemical Sensitivity Podcast, we uncover what people with the illness already know — there is no such thing as safe fragrance.
I speak with Professor Gertrud Morlock from Justus Liebig University Giessen in Germany. You'll hear her share:
- What her lab found when screening 42 perfumes.
- Why fragrance formulas are shielded as trade secrets, and how even small amounts can be toxic.
- How ethanol in perfume enhances skin penetration and persistence.
- And what “unscented” / “fragrance free” labels really mean for people with MCS.
Professor Morlock's 2025 paper:
"Fast Unmasking hazards of safe perfumes":
https://www.sciencedirect.com/science/article/pii/S0021967325003073
One more thing:
Wendy Kearley is someone many of us know.
She has lived with debilitating Multiple Chemical Sensitivity
(MCS) for decades.
Wendy has devoted her life to researching and sharing vital information about MCS.
Wendy recently lost access to her Facebook account.
She needs our help to get critical and non-toxic dental care.
Please find a like to her Go Fund Me Page, and please consider contributing to support Wendy.
https://www.gofundme.com/f/help-wendy-restore-her-smile-and-health
Thank you very much to the Marilyn Brachman Hoffman Foundation for its generous support of the podcast.
If you like the podcast, please consider becoming a supporter!
- Support the podcast.
- Find the podcast on Patreon.
- If you like, please buy me a coffee.
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Sponsorship Opportunites
Are you an organization or company interested in helping to create greater awareness about Multiple Chemical Sensitivity and Chemical Intolerance and/or looking for sponsorship opportunities? Please email us at [email protected]
Chapters
1. The smell of toxic laundry products wafting through an open window triggers days-long symptoms—and a call for fragrance-free spaces. (00:00:00)
2. Meet Professor Gertrud Morlock, whose new paper challenges the myth of “safe” perfume. (00:05:16)
3. EU rules vs. trade secrets: why perfume ingredients stay hidden from consumers. (00:06:28)
4. What’s really in fragrances: petrochemical bases and oxidized compounds linked to harm. (00:08:22)
5. Ethanol in perfume helps chemicals penetrate skin and persist far longer than you think. (00:10:32)
6. Genotoxic vs. mutagenic: when DNA damage from scent chemicals becomes permanent. (00:11:27)
7. Why fragrance can initiate chemical intolerance—and what Morlock hears from students. (00:12:51)
8. Lab screen of 42 perfumes: not one was free of hazardous compounds. (00:14:15)
9. Essential oils aren’t inherently safer—reduction, not substitution, is key. (00:16:46)
10. “Unscented,” “scent free,” “fragrance free”: labels, masking agents, and what to watch for. (00:17:41)
81 episodes
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