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AZELOYL DIETHYL SALICYLATE.

Valuable CAS 207972-39-2 / SKIN CONDITIONING

A high-performance lipophilic pro-drug engineered to deliver targeted sebostatic and keratolytic benefits deep within the pore. By utilizing the skin's natural enzymes for activation, it provides a sophisticated approach to managing oil production and congestion without the surface irritation often associated with traditional acids.

sebostatic anti-acne skin conditioning keratolytic

Science

This molecule functions as a lipid-soluble delivery system that penetrates the pilosebaceous unit effectively due to its high logP value. Once inside the follicle, skin esterases hydrolyze the compound into Azelaic Acid, which inhibits 5-alpha-reductase to control sebum and bacteria, and Ethyl Salicylate, which performs a gentle keratolytic action to clear follicular blockages.


Research

High confidence
Effective range 1–5%
Optimal

3%

Key findings

  1. 01 Clinical evaluation demonstrated a 30-44% reduction in sebum excretion rates, returning oil production to physiological norms within a 28-day period.
  2. 02 Pharmacokinetic data confirms high follicular accumulation and successful metabolic conversion into active Azelaic Acid and Salicylate derivatives by cutaneous esterases.

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

Due to its specialized nature as a sebostatic agent, concentrations below 1% are unlikely to achieve the significant oil-reduction benefits observed in clinical settings.


The Formula

Solubility
Oil
Optimal pH 3.5 – 5.5
0 7 14

Stability

Highly stable in anhydrous environments and oil-rich emulsions; requires protection from high heat and light to maintain structural integrity.

Synergies

  • Niacinamide
  • Zinc PCA
  • Non-comedogenic botanical oils

Conflicts

  • Strong alkalis
  • Formulations with pH > 6.0
  • Aqueous systems without proper solubilizers

Safety

CIR Status
Safe as used
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

Its safety profile aligns with other salicylates; the controlled release mechanism via hydrolysis typically results in lower irritation potential than direct acid application.


Your Skin

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

Our Assessment

Valuable

A precision-engineered ingredient that offers superior, deep-pore oil regulation and exfoliation with an excellent safety profile for acne-prone and sensitive skin.


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References