Propylene Glycol (PG) allergies affect ~5% of vapers, often misdiagnosed as “vaper’s tongue.” Key signs:
- Symptoms: Throat swelling, hives, or gastrointestinal distress within 1 hour of vaping.
- Test It: Switch to max-VG liquids (e.g., 80% VG/20% water) for 48 hours.
PG-Free Alternatives:
- Vegetable Glycerin (VG): Softer throat hit; best for sub-ohm devices.
- MCT Oil: Rarely allergenic but avoid with coconut allergies.
- TECS/TEA Salts: New synthetic bases (pH-balanced for smoothness).
Note: Always consult allergists before switching—PG-free liquids may require higher wattages.
