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ANISALDEHYDE.

Optional CAS 123-11-5 / FRAGRANCE, PERFUMING

Anisaldehyde is an aromatic aldehyde commonly utilized in skincare for its sweet, hawthorn-like scent and masking capabilities. While primarily a sensory additive, emerging research into its biological interactions with melanin pathways presents a complex profile for precision formulation.

Fragrance Masking Potential Melanogenesis Potentiator

Science

Functions primarily as a fragrance and masking agent. Biologically, it exhibits conflicting interactions with the tyrosinase enzyme; while it shows inhibitory potential in fungal models, mammalian cell studies suggest it may actually act as a melanogenesis potentiator, increasing melanin production.


Research

Low confidence
Effective range 0.2–1%
Optimal

0.5%

Key findings

  1. 01 In vitro studies on B16-F10 melanoma cells observed a 5-fold increase in melanin content at 1 mM concentrations, suggesting a pro-pigmenting rather than brightening effect.
  2. 02 Mushroom tyrosinase assays indicated inhibitory potential at 25 µg/mL, though these results lack replication in human skin models.

Transparency

Not commonly dusted
Min. effective
0.01%
Red flag below
0.001%

As a fragrance component, it is rarely 'dusted' for marketing claims but must be explicitly labeled in the EU if exceeding 0.001% due to its status as a potential allergen.


The Formula

Solubility
Both
Optimal pH 3 – 7
0 7 14

Stability

Highly air-sensitive and prone to oxidation; requires airtight packaging. It is unstable in high pH environments and reacts poorly with primary amines, leading to potential formula discoloration.

Conflicts

  • Strong alkalis
  • Primary amines
  • Strong oxidizing agents

Safety

CIR Status
Not reviewed
Max tested
1.4%
Pregnancy
Safe
Sensitization risk Moderate

Regulated by IFRA with a 1.4% safety limit for leave-on body products. It is a recognized fragrance allergen that may trigger sensitivity in reactive skin types.


Your Skin

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Optional

Primarily a sensory additive with average skin benefits and potential pigment-stimulating properties that require cautious application in brightening routines.


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