Our take
Is Cinnamomum Cassia Leaf Oil a Good Ingredient?
Chiefly a perfume material with minimal proven skincare value, and its cinnamaldehyde-rich profile heightens irritation and sensitization risk, especially in leave-ons. That combination of weak skin benefit and real irritation risk is why it only earns a Poor rating.
What it does
Skin Benefits
Delivers a bold cinnamon character; skincare benefits beyond scent are not well supported and it can be sensitizing for some users.
Where you'll find it
Uses in Skincare & Cosmetics
Primarily included in perfumes, body sprays, and fragranced wash-offs like shower gels at very low percentages due to potency.
Before you use it
Potent and volatile, with a higher likelihood of stinging, redness, or allergic reactions; keep levels low and avoid broken or very sensitive skin. EU rules require labeling of certain fragrance allergens above thresholds.
Products with Cinnamomum Cassia Leaf Oil