Why Ingredient Transparency Matters in 2026
Why Ingredient Transparency Matters in 2026 If you vape, you inhale what's in your e-liquid dozens of times per day. Yet most vapers cannot name all four base…
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Why Ingredient Transparency Matters in 2026 If you vape, you inhale what's in your e-liquid dozens of times per day. Yet most vapers cannot name all four base…
The Four Base Ingredients: Overview Every e-liquid on the market — whether a $30 craft juice or a $5 gas station disposable — starts with the same four…
Ingredient #1: Propylene Glycol (PG) What It Is Propylene glycol (1,2-propanediol, C₃H₈O₂) is a synthetic, colorless, odorless, hygroscopic liquid. It absorbs…
Ingredient #2: Vegetable Glycerin (VG) What It Is Vegetable glycerin (1,2,3-propanetriol, C₃H₈O₇) is a three-carbon sugar alcohol derived from vegetable oils…
Ingredient #3: Nicotine Two Chemical Forms Nicotine in e-liquid comes in two forms: freebase and salt . Freebase nicotine is the unprotonated, alkaline form…
Ingredient #4: Flavoring Compounds Flavorings are the most complex and least transparent ingredient category. A single e-liquid may contain dozens of…
Heating Byproducts: What Forms Inside Your Coil The ingredients listed above are what goes into an e-liquid. What comes out of the device is a different…
Contaminants: Heavy Metals and Manufacturing Issues Heavy Metals from Coils E-cigarette heating coils are typically made of nickel, chromium, and iron. When…
FDA Regulatory Status (2026) As of mid-2026, the FDA had authorized approximately 45+ individually authorized e-cigarette products through the PMTA (Premarket…
Consumer Safety Checklist What to Check Before Buying E-Liquid Verify PMTA status — Check if the product has FDA authorization at fda.gov/tobacco-products.…
Ingredient Safety Scorecard Ingredient/Byproduct Evidence Strength Risk Level (Real-World Use) Consumer Action Propylene Glycol (PG) Strong (multiple…
Who Should Read This: 5 User Personas 1. The Switching Smoker (Age 35-55) Profile: Smoking a pack per day for 15+ years, considering vaping to quit. Needs…
Frequently Asked Questions 1. What are the main ingredients in vape juice? Vape juice contains four primary ingredients: propylene glycol (PG), vegetable…
Sources Kassem NOF, Strongin RM, Stroup AM, Brinkman MC, El-Hellani A. "A Review of the Toxicity of Ingredients in e-Cigarettes, Including Those Ingredients…
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