Main Reaction: Cinnamic alcohol >> Cinnamaldehyde

Reference: PubMed ID: 11042091
Authors: Smith CK, Moore CA, Elahi EN, Smart AT, Hotchkiss SA
Title: Human skin absorption and metabolism of the contact allergens, cinnamic aldehyde, and cinnamic alcohol.
Published: 2000 Nov 1

Cinnamic alcohol --> Cinnamaldehyde