Who Should Read This: 5 User Personas

Q: 1. The Switching Smoker (Age 35-55)?

Profile: Smoking a pack per day for 15+ years, considering vaping to quit. Needs maximum nicotine delivery to manage cravings. What matters: Nicotine salt at 20-35 mg/mL provides cigarette-comparable blood nicotine levels per Christen et al. 2025. Should choose FDA-authorized products with disclosed ingredient lists. Avoid illicit THC products entirely (EVALI risk). PG/VG ratio less important than nicotine delivery. Key article: E-liquid buying guide for brand-level FDA status.

Q: 2. The Health-Conscious Vaper (Age 25-40)?

Profile: Already vaping, wants to minimize harm. Reads ingredient labels, asks about diacetyl, prefers high-VG liquids. What matters: 25:75 PG/VG ratio showed lowest carbonyl release. Avoid sucralose-sweetened liquids (catalyzes degradation). Choose brands that provide CoA documentation. Replace coils before they degrade. Never use a disposable past its prime — MGO accumulates 10-100x. Key article: This guide + salt nic vs. freebase chemistry.

Q: 3. The Cloud Chaser (Age 20-30)?

Profile: Sub-ohm vaper, prioritizes vapor production. Uses high-VG liquids (80%+), low nicotine (3-6 mg/mL freebase). What matters: High VG means more acrolein risk when heated above 280°C. Ensure device doesn't run dry (dry hits spike temperatures above 350°C). Use temperature control mods if possible. The 25:75 ratio offers a better harm-reduction profile than 20:80 without sacrificing much vapor. Key article: Refillable pod vape comparison for device-level coil quality.

Q: 4. The Disposable User (Age 18-28)?

Profile: Uses disposable vapes exclusively — Elf Bar, Lost Mary, Geek Bar. Doesn't think about ingredients; chooses by flavor. What matters: Disposables have the highest heavy metal risk (UC Davis 2025). Toxic aldehydes accumulate as the device depletes. Choose FDA-authorized disposables where possible. Don't finish a device that's producing a burnt taste — that's thermal decomposition in real time. See our disposable buying guide for device-specific safety data. Key article: FDA enforcement guide for authorized vs. unauthorized products.

Q: 5. The Regulated Consumer (Age 30-50)?

Profile: Wants to understand the regulatory landscape. Checks PMTA status, follows FDA news, concerned about state flavor bans. What matters: FDA authorization means ingredient disclosure and manufacturing standards — but not "safe." Track the 2026 flavored ENDS guidance and state AG responses. State flavor bans directly affect which ingredients (flavorings) are available. See our state-by-state flavor ban guide. Key article: This guide + regulatory coverage in flavor ban guide.

1. The Switching Smoker (Age 35-55)

Profile: Smoking a pack per day for 15+ years, considering vaping to quit. Needs maximum nicotine delivery to manage cravings.

What matters: Nicotine salt at 20-35 mg/mL provides cigarette-comparable blood nicotine levels per Christen et al. 2025. Should choose FDA-authorized products with disclosed ingredient lists. Avoid illicit THC products entirely (EVALI risk). PG/VG ratio less important than nicotine delivery.

Key article: E-liquid buying guide for brand-level FDA status.

2. The Health-Conscious Vaper (Age 25-40)

Profile: Already vaping, wants to minimize harm. Reads ingredient labels, asks about diacetyl, prefers high-VG liquids.

What matters: 25:75 PG/VG ratio showed lowest carbonyl release. Avoid sucralose-sweetened liquids (catalyzes degradation). Choose brands that provide CoA documentation. Replace coils before they degrade. Never use a disposable past its prime — MGO accumulates 10-100x.

Key article: This guide + salt nic vs. freebase chemistry.

3. The Cloud Chaser (Age 20-30)

Profile: Sub-ohm vaper, prioritizes vapor production. Uses high-VG liquids (80%+), low nicotine (3-6 mg/mL freebase).

What matters: High VG means more acrolein risk when heated above 280°C. Ensure device doesn't run dry (dry hits spike temperatures above 350°C). Use temperature control mods if possible. The 25:75 ratio offers a better harm-reduction profile than 20:80 without sacrificing much vapor.

Key article: Refillable pod vape comparison for device-level coil quality.

4. The Disposable User (Age 18-28)

Profile: Uses disposable vapes exclusively — Elf Bar, Lost Mary, Geek Bar. Doesn't think about ingredients; chooses by flavor.

What matters: Disposables have the highest heavy metal risk (UC Davis 2025). Toxic aldehydes accumulate as the device depletes. Choose FDA-authorized disposables where possible. Don't finish a device that's producing a burnt taste — that's thermal decomposition in real time. See our disposable buying guide for device-specific safety data.

Key article: FDA enforcement guide for authorized vs. unauthorized products.

5. The Regulated Consumer (Age 30-50)

Profile: Wants to understand the regulatory landscape. Checks PMTA status, follows FDA news, concerned about state flavor bans.

What matters: FDA authorization means ingredient disclosure and manufacturing standards — but not "safe." Track the 2026 flavored ENDS guidance and state AG responses. State flavor bans directly affect which ingredients (flavorings) are available. See our state-by-state flavor ban guide.

Key article: This guide + regulatory coverage in flavor ban guide.