{"hq_id":"hq-p-bdy-000120","name":"Self-Tanning Product (DHA-Based)","category":{"primary":"personal_care","secondary":"cosmetics","tags":["self-tanner","DHA","dihydroxyacetone","Maillard reaction","spray tan"]},"product_tier":"BDY","overall_risk_level":"low","description":"Self-tanning lotions, mousses, and spray tans using dihydroxyacetone (DHA) to brown skin via Maillard reaction with amino acids in the stratum corneum. FDA has approved DHA for external cosmetic application but NOT for spray application (inhalation, eye contact, lip/mucous membrane exposure). Professional spray tan booths deliver aerosolized DHA to entire body including face — inhalation and mucosal exposure are unavoidable without protection.","synthesis":{"derived_risk_level":"moderate","synthesis_confidence":0.82,"synthesis_method":"compound_composition","context_used":"human_adult","context_source":"product_users","exposure_modifier":1.1,"vulnerability_escalated":false,"escalation_reason":null,"compounds_resolved":2,"compounds_total":2,"synthesis_date":"2026-03-27","synthesis_version":"1.0.0"},"hazard_summary":{"sensitive_populations":"spray tan clients (inhalation of unapproved aerosol)","overall_risk":"low","primary_concerns":["DHA spray inhalation NOT FDA-approved (only topical application approved)","DHA increases free radical generation on UV-exposed skin for 24 hours","Mucosal membrane and eye contact during spray tanning"],"exposure_routes":"Dermal (topical — approved); inhalation and mucosal (spray — NOT approved)"},"exposure":{"routes":["dermal","inhalation"],"contact_types":["skin_prolonged","inhalation"],"users":["adult"],"duration":"hours","frequency":"weekly","scenarios":["Topical lotion/mousse application (FDA-approved use)","Spray tan booth: full-body aerosolized DHA (FDA NOT approved for inhalation)","DHA generating free radicals on UV-exposed skin (post-application sun exposure)"],"notes":"FDA 2013: DHA approved for external application ONLY — spray tanning is not an FDA-approved use. DHA on skin exposed to UV generates 180% more free radicals than untreated skin for 24 hours post-application. Wear nose plugs, lip protection, and eye goggles during spray tanning."},"consumer_guidance":{"usage_warning":"Use self-tanning lotion or mousse (FDA-approved application method). If using spray tan: protect eyes, nose, mouth, and mucous membranes. Avoid sun exposure for 24 hours after DHA application (increased free radical generation).","safer_alternatives":["Self-tanning lotion applied by hand (FDA-approved use)","Bronzing makeup (washes off, no chemical skin reaction)","Gradual tan body lotion (lower DHA concentration)"],"red_flags":[{"indicator":"Product causes skin irritation, redness, or rash","meaning":"Contact dermatitis or chemical sensitivity.","action":"Discontinue use. Choose fragrance-free, hypoallergenic alternative."}],"green_flags":[{"indicator":"EWG Verified or dermatologist-tested label","meaning":"Meets strict ingredient safety criteria.","verification":"Check EWG Skin Deep database for product rating."}],"what_to_ask":[{"question":"Is this product fragrance-free (not just unscented)?","why_it_matters":"Fragrance is the #1 cause of cosmetic contact dermatitis. Unscented may still contain masking fragrance.","good_answer":"Fragrance-free — no fragrance ingredients at all.","bad_answer":"Unscented (may contain masking fragrance)."}],"alternatives":[{"name":"Self-tanning lotion applied by hand","notes":"FDA-approved use"},{"name":"Bronzing makeup","notes":"washes off, no chemical skin reaction"},{"name":"Gradual tan body lotion","notes":"lower DHA concentration"}]},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"FDA Federal Food, Drug, and Cosmetic Act (Cosmetics)","citation":"21 U.S.C. 361-364","requirements":"Cosmetics must not be adulterated or misbranded. No pre-market approval required (except color additives). Fragrance ingredients exempt from individual disclosure.","compliance_status":null,"effective_date":null,"enforcing_agency":"FDA","penalties":null,"source_ref":null},{"jurisdiction":"EU","regulation":"EU Cosmetics Regulation (EC) No 1223/2009","citation":"EC 1223/2009","requirements":"All cosmetic ingredients must be safety-assessed before market. 1,600+ banned substances. Full ingredient disclosure required (INCI). CMR substances prohibited.","compliance_status":null,"effective_date":null,"enforcing_agency":"European Commission","penalties":null,"source_ref":null},{"jurisdiction":"USA -- California","regulation":"California Proposition 65","citation":"CA Health & Safety Code 25249.5","requirements":"Products containing listed chemicals require warnings.","compliance_status":null,"effective_date":null,"enforcing_agency":"OEHHA","penalties":null,"source_ref":null}],"certifications":[{"name":"EWG Verified","issuer":"Environmental Working Group","standard":"EWG Verified Mark","scope":"Meets EWG strictest health criteria for personal care products"}],"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":null,"notes":null},"lifecycle":{"recyclable":true,"disposal_guidance":"Recycle container.","hazardous_waste":false,"expected_lifespan":"months"},"formulation":{"form":"varies","key_ingredients":[{"hq_id":"hq-c-org-000094","name":"Propylene glycol","role":"carrier","concentration_pct":"5-15"},{"hq_id":"hq-c-org-000728","name":"Phenoxyethanol","role":"preservative","concentration_pct":"0.5-1"}],"certifications":[]},"materials":{"common":[{"material_id":null,"material_name":"Primary formulation for self-tanning product (dha-based)","component":"main product","prevalence":"common","notes":"Standard personal care product formulation."}],"concerning":[],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000094","compound_name":null,"role":"carrier","typical_concentration":"5-15%"},{"hq_id":"hq-c-org-000728","compound_name":null,"role":"preservative","typical_concentration":"0.5-1%"}],"identifiers":{"common_names":["self-tanning product (dha-based)"],"aliases":[],"manufacturer":null,"brands":[]},"brand_examples":[{"brand":"Jergens Natural Glow","manufacturer":"Kao","market_position":"mass_market","notable":"Gradual self-tanner lotion"},{"brand":"St. Tropez","manufacturer":"PZ Cussons","market_position":"premium","notable":"Professional-grade self-tanning"},{"brand":"Bondi Sands","manufacturer":"Bondi Sands","market_position":"premium","notable":"Australian self-tanning brand"}],"sources":[{"type":"expert_curation","name":"ALETHEIA Safety Database","date":"2026-03-25"},{"type":"regulation","title":"FDA Federal Food, Drug, and Cosmetic Act (Cosmetics) (21 U.S.C. 361-364)","jurisdiction":"USA","citation":"21 U.S.C. 361-364","id":"src_d6e8aa83"},{"type":"regulation","title":"EU Cosmetics Regulation (EC) No 1223/2009 (EC 1223/2009)","jurisdiction":"EU","citation":"EC 1223/2009","id":"src_dc378692"},{"type":"regulation","title":"California Proposition 65 (CA Health & Safety Code 25249.5)","jurisdiction":"USA -- California","citation":"CA Health & Safety Code 25249.5","id":"src_fe1d5adc"},{"id":"fda_pg_cat_food_ban","type":"regulatory","title":"US FDA: Propylene Glycol in Animal Food — Final Rule Prohibiting Use in Cat Food (21 CFR 582.4666) and GRAS Status for Dog Food","year":1996,"inherited_from_compound":"hq-c-org-000094"},{"id":"aspca_apcc_pg","type":"veterinary","title":"ASPCA Animal Poison Control Center: Propylene Glycol — Heinz Body Anemia Risk in Cats and Species Differences in Erythrocyte Sensitivity","year":2022,"inherited_from_compound":"hq-c-org-000094"},{"id":"src_001","type":"database","title":"PubChem Compound Database","url":"https://pubchem.ncbi.nlm.nih.gov/compound/31236","year":2026,"inherited_from_compound":"hq-c-org-000728"},{"type":"regulatory","title":"US Food and Drug Administration (FDA)","jurisdiction":"USA","id":"src_82d1cfcd","extraction":"description_reference"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-02T18:19:08.500Z"}}