Why “regular” SPF & repellents can trigger symptoms
Chemical UV filters such as oxybenzone and octinoxate release VOCs and disrupt hormones. Add synthetic fragrance and you’re breathing hundreds of undisclosed chemicals—bad news for anyone with Multiple Chemical Sensitivity (MCS). Traditional high-DEET sprays also off-gas harsh solvents for hours, irritating airways and skin.
Sources: EWG on oxybenzone • CDC on DEET safety
What to look for instead
- 100 % mineral filters — non-nano zinc oxide or titanium dioxide
- Truly fragrance-free — no masking scent, no “parfum” in the INCI list
- No parabens or phthalates
- Low-odor protection — picaridin 20 % or oil of lemon eucalyptus 30 %, both CDC-endorsed
DIY corner (for ultra-reactive readers)
Three-ingredient mineral balm (≈ SPF 30)
- Melt 3 Tbsp shea butter + 2 Tbsp jojoba oil in a double boiler.
- Whisk in 2 Tbsp non-nano zinc oxide; keep the dust down.
- Pour into a 2 oz tin and cool.
Patch-test first and re-apply every 80 minutes (not water-resistant or FDA-tested).
Low-odor mosquito tactics
- Loose, light-colored clothing
- Clip-on battery fan (moving air makes it hard for mosquitoes to land)
- Net jacket or pop-up screen tent for camping nights
FAQs
Is picaridin really scent-free?
Yes—20 % picaridin formulas have negligible odor and don’t melt plastics.
Will mineral sunscreens leave a white cast?
Modern sheer zinc fluids (see picks above) blend in on most skin tones when applied in thin, even layers.
Can essential-oil blends replace commercial repellents?
Most aren’t EPA-registered. Stick with picaridin or oil of lemon eucalyptus 30 % for reliable, low-odor protection.
More fragrance-free reads
- How to Keep Your Car Smelling Fresh Without Toxic Chemicals
- Scents Make Me Sick: What It’s Like to Have MCS
- Hidden Danger Lurking in Our Homes: PFAS
- Speak Up for Chronic Illness: The Urgent Need for Awareness
Take-home message
Choose mineral, fragrance-free SPF plus low-odor repellents, back them up with shade and breathable fabrics, and breathe easier all summer.
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