Hexyl Cinnamal

Concerns
Allergen

What is Hexyl Cinnamal?

Hexyl Cinnamal is a synthetic aroma chemical classified as an alpha,beta-unsaturated aldehyde, structurally derived from cinnamaldehyde with a hexyl chain addition. This modification yields a fresh, green floral scent reminiscent of lily of the valley, jasmine, and hyacinth. Primarily employed in the fragrance category of cosmetics, it appears in perfumes, body lotions, shampoos, and makeup products. In formulations, it delivers characteristic scent profiles that elevate the product's sensory appeal and effectively conceals off-notes from other components through its masking properties. Incorporated at minimal levels to comply with safety standards, its volatility ensures sustained fragrance release over time without impacting product stability.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 3 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Fragrance ingredient
Contributes scent character and/or masks base odors, shaping the overall sensory experience of the formula (subject to allergen and IFRA considerations).
Masking
Reduces perception of unpleasant odors or tastes by neutralizing them or covering them with more acceptable sensory notes.

Benefits

Adds appealing floral and green scents to enhance product enjoyment

Masks unwanted odors for a cleaner sensory profile

Non-comedogenic, suitable for routine skincare use

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Users who enjoy lightly scented personal care items
People with fragrance sensitivities
Individuals with normal, non-reactive skin
Individuals prone to allergic contact dermatitis
Those prioritizing fragrance without pore-clogging concerns
Users with highly reactive or eczema-prone skin

Safety Notes

  • Identified as a contact allergen requiring declaration in regulated regions
  • Associated with immunotoxicity risks in hazard assessments

Frequently Asked Questions about Hexyl Cinnamal

What does Hexyl Cinnamal smell like?

It provides fresh, green notes similar to lily of the valley and jasmine, used to scent various beauty products.

Is Hexyl Cinnamal comedogenic?

It has a comedogenic rating of 0, indicating low likelihood of pore blockage.

Why is it flagged for sensitive skin?

Due to its potential to trigger allergic reactions as a recognized fragrance allergen.