{"hq_id":"hq-p-spe-000022","name":"E-cigarette liquid / vape juice","category":{"primary":"personal_care","secondary":"tobacco_products","tags":["vape juice","e-liquid","nicotine","propylene glycol","formaldehyde"]},"product_tier":"SPE","overall_risk_level":"high","description":"Nicotine-containing liquid for electronic cigarettes and vaping devices. Products contain propylene glycol, vegetable glycerin, nicotine (variable concentration), and flavorings. Aerosol generated by heating contains ultrafine particles, propylene glycol, aldehydes, and flavor compounds.","synthesis":{"derived_risk_level":"moderate","synthesis_confidence":0.863,"synthesis_method":"compound_composition","context_used":"human_child","context_source":"product_users","exposure_modifier":1.2,"vulnerability_escalated":true,"escalation_reason":"Child exposure group","compounds_resolved":4,"compounds_total":4,"synthesis_date":"2026-03-27","synthesis_version":"1.0.0"},"hazard_summary":{"sensitive_populations":"youth, pregnant persons, people with underlying lung disease","overall_risk":"high","primary_concerns":["Nicotine addiction and cardiovascular effects; aldehyde formation during heating (formaldehyde, acetaldehyde); respiratory effects from chronic PG inhalation; potential for youth addiction"],"exposure_routes":"inhalation, ingestion"},"exposure":{"routes":["dermal"],"contact_types":["inhalation","skin_contact","ingestion"],"users":["vaper","bystander","child"],"duration":"minutes_to_hours","frequency":"variable","scenarios":["Incidental mouthing or hand-to-mouth transfer by children"],"notes":"Primary exposure is inhalation of heated aerosol. Secondhand exposure occurs in shared spaces. Children may ingest liquid if containers are accessible."},"consumer_guidance":{"red_flags":[{"indicator":"E-liquid bottle without childproof cap or warning label about nicotine toxicity","meaning":"Risk of accidental child poisoning","action":"Store in locked container; discard any products without proper safety features"},{"indicator":"High-nicotine vaping in youth or non-smokers","meaning":"Risk of nicotine addiction and brain development effects","action":"Cease use; consult healthcare provider if addiction is present"}],"green_flags":[{"indicator":"Using nicotine replacement therapy under medical supervision instead of vaping","meaning":"FDA-approved, dosage-controlled, evidence-based cessation method","verification":"Prescribed by healthcare provider; product is FDA-approved NRT"}],"what_to_ask":[{"question":"Is this e-liquid FDA-approved and can you verify the nicotine concentration and source?","why_it_matters":"Unregulated e-liquids may have variable nicotine concentrations or contaminants; FDA approval ensures quality","good_answer":"FDA-approved product with verified nicotine concentration and contents","bad_answer":"No FDA approval or composition information available"}],"alternatives":[{"name":"FDA-approved nicotine replacement therapy (patches, gum, lozenges, nasal spray, inhalers)","notes":"Evidence-based smoking cessation method with regulated dosing"},{"name":"Prescription smoking cessation medications (varenicline, bupropion)","notes":"Non-nicotine approaches approved by FDA for smoking cessation"}],"notes":null},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"FDA — E-cigarette regulation (PMTA)","citation":null,"requirements":"E-cigarettes must obtain Premarket Tobacco Application approval; many products sold without approval","compliance_status":null,"effective_date":null,"enforcing_agency":null,"penalties":null,"source_ref":null}],"certifications":[],"labeling":{"required_disclosures":[],"prop65_warning":{"required":null,"chemicals":[],"endpoint":null,"notes":null},"ghs_labeling":{"required":null,"signal_word":null,"pictograms":[],"hazard_statements":[],"notes":null},"hidden_ingredients":{"trade_secret_protected":null,"categories_hidden":[],"estimated_count":null,"known_concerns":null,"notes":null},"notes":null},"recalls":[],"regulatory_gap":"Many e-liquid products lack FDA approval; nicotine concentration and source often not standardized","notes":null},"lifecycle":{"recyclable":true,"disposal_guidance":"Rinse containers and recycle plastic; liquid to hazardous waste if industrial volume","hazardous_waste":false,"expected_lifespan":"1-4_weeks"},"formulation":{"form":"composite_material","key_ingredients":[{"hq_id":"hq-c-org-000080","name":"Nicotine","role":"active_ingredient","concentration_pct":"0-5"},{"hq_id":"hq-c-ino-000047","name":"Propylene glycol (PG)","role":"carrier_solvent","concentration_pct":"30-80"},{"hq_id":"hq-c-ino-000005","name":"Vegetable glycerin (VG)","role":"carrier_solvent","concentration_pct":"20-70"},{"hq_id":"hq-c-ino-000029","name":"Flavorings (aldehydes, esters, other)","role":"flavoring","concentration_pct":"0.5-10"}],"certifications":[]},"materials":{"common":[{"material_id":null,"material_name":"Nicotine (liquid or salt form)","component":"active stimulant","prevalence":"very_common","notes":"Highly addictive; nicotine salts allow higher concentrations without harshness; rapid absorption from lung tissue"},{"material_id":null,"material_name":"Propylene glycol","component":"carrier solvent","prevalence":"very_common","notes":"Generally recognized as safe in food; respiratory effects when inhaled chronically are unknown"}],"concerning":[{"material_id":null,"material_name":"Nicotine — addiction and cardiovascular effects","concern":"Nicotine causes vasoconstriction, increased heart rate, potential for arrhythmias; highly addictive","compounds_of_concern":[],"source_refs":[]},{"material_id":null,"material_name":"Flavorings — diacetyl and other aldehydes","concern":"Diacetyl is known cause of bronchiolitis obliterans (popcorn lung); other aldehydes formed during vaping","compounds_of_concern":[],"source_refs":[]},{"material_id":null,"material_name":"Formaldehyde and acetaldehyde generation during heating","concern":"Aldehydes generated when e-liquid is heated; both are carcinogens","compounds_of_concern":[],"source_refs":[]},{"material_id":null,"material_name":"Propylene glycol inhalation — respiratory effects","concern":"Chronic inhalation of PG may cause respiratory irritation or sensitization; limited long-term data","compounds_of_concern":[],"source_refs":[]}],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000080","compound_name":"Nicotine","role":"active_ingredient","typical_concentration":null},{"hq_id":"hq-c-ino-000047","compound_name":"Amorphous silica nanoparticles (nano-SiO2, E551)","role":"carrier_solvent","typical_concentration":null},{"hq_id":"hq-c-ino-000005","compound_name":"Cadmium","role":"carrier_solvent","typical_concentration":null},{"hq_id":"hq-c-ino-000029","compound_name":"Aluminum","role":"flavoring","typical_concentration":null}],"identifiers":{"common_names":["vape juice","e-liquid","e-juice","nicotine liquid","vaping liquid"],"aliases":[],"manufacturer":null,"brands":[]},"brand_examples":[{"brand":"Generic Mass-Market Brand A","manufacturer":"Consumer Products Corporation","market_position":"mass_market","notable":"Widely available mass-market option"},{"brand":"Generic Mass-Market Brand B","manufacturer":"Consumer Goods Ltd","market_position":"mass_market","notable":"Popular budget alternative"},{"brand":"Premium Brand A","manufacturer":"Premium Consumer Inc","market_position":"premium","notable":"Upscale premium positioning"},{"brand":"Professional Brand","manufacturer":"Professional Products Co","market_position":"professional","notable":"Professional/salon-grade option"},{"brand":"Specialty Eco-Brand","manufacturer":"Natural Products Ltd","market_position":"premium","notable":"Sustainable/natural product line"}],"sources":[{"title":"FDA - Medical Devices and Specialty Products","type":"regulatory","url":"https://www.fda.gov/","accessed":"2026-03-23"},{"title":"OSHA - Occupational Safety and Health Administration","type":"regulatory","url":"https://www.osha.gov/","accessed":"2026-03-23"},{"title":"EU MDR - Medical Device Regulation","type":"regulatory","url":"https://ec.europa.eu/growth/tools-databases/nando/","accessed":"2026-03-23"},{"title":"ISO Standards for Specialty Products","type":"industry","url":"https://www.iso.org/","accessed":"2026-03-23"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-02T18:22:17.923Z"}}