Cinnamaldehyde — Oral Care & Lip Formulation Reference | Aromatic Monograph
The warm cinnamon molecule that's gentle in trace and fierce in excess — an IFRA-restricted sensitizer worth handling with a light hand.
Cinnamaldehyde is the molecule behind cinnamon's warmth — and the one that's gotten more indie brands in trouble than almost any other flavor material. It's an IFRA-restricted contact sensitizer, it hides in "warm spice" blends, and the cinnamon "leaf oil" a lot of founders buy by mistake is actually eugenol, not cinnamaldehyde at all — that's how you end up with a toothpaste that tastes like Easter ham instead of Red Hots.
What it is A one-page formulation reference for cinnamaldehyde in oral care and lip products, written by a working flavorist — the dose behavior, sourcing, reactivity, and blending that usually only exists inside a flavor house, on a single sheet you keep at your bench.
What's inside IFRA ceilings for oral care (Cat 6) and lip (Cat 1), left blank for up-to-date restrictions · dose in flavor levels — characterizing, blending, background — with the math to stay under cap · sourcing calls (synthetic vs. bark vs. leaf oil), storage & stability, and the real red flags · odor & flavor (character, impact, tenacity) · From the Bench — pairings, base reactivity, and blending you won't find in a textbook · a graph-paper Material Notes page for your own trials.
Who it's for Indie oral care and lip founders, cosmetic formulators, and anyone building flavored products who's locked out of professional flavor training. No fluff, no filler.
Format Instant digital download. Two-page print-ready PDF (US Letter). Reference and education, not a formula or regulatory clearance — verify all restricted-material totals against current IFRA Standards and your target markets before selling.
A note on the preview image The close-up preview of this sheet is intentionally garbled — the AI edit that protects it scrambled the letters, jumbled the words, and in places swapped words out entirely. That's the point: it lets you see the layout, depth, and what you're buying without exposing the actual reference content to a screenshot. The sheet you download is clean, correct, and fully legible — none of the scrambling carries over.
Tags: cinnamaldehyde, cinnamic aldehyde, trans-cinnamaldehyde, cinnamon flavor, CAS 104-55-2, FEMA 2286, oral care formulation, lip balm formulation, flavor use rate, IFRA category 6, cosmetic flavoring, indie beauty formulation, flavorist reference, cinnamon sensitization, aromatic monograph
