Inhibits Cutibacterium acnes (formerly P. acnes), regulates follicular keratinization, and exerts anti-inflammatory effects. Common formulations include 15% gel and 20% cream; recommended for topical use by the Chinese Guidelines for Acne Treatment.

Selectively inhibits tyrosinase in abnormal melanocytes to fade acne marks, post-inflammatory hyperpigmentation (PIH), and melasma. Its irritation potential is significantly lower than that of tretinoin or high-concentration AHAs.

Inhibits 5α-reductase to reduce sebum secretion. Suitable for oily, acne-prone skin and as adjunctive care for rosacea.

Gels, creams, moisturizers, serums, and masks.

• Plasticizers: Synthesis of Dioctyl Azelate (DOZ), Diisooctyl Azelate, etc. Used in PVC and rubber, offering excellent heat resistance, cold resistance, and electrical insulation properties; suitable for products in low-temperature environments.
• Lubricants / Synthetic Oils: Used as components for precision instruments and aviation hydraulic fluids.
• Coatings / Resins: Modified polyesters and alkyd resins to improve coating flexibility and weatherability.

Feed additives, electroplating brighteners, polymer crosslinking agents, etc.

• Cold Wave Lotions / Perm Solutions: Softens hair keratin and reshapes disulfide bonds to achieve permanent curling; serves as the core reducing agent in cold perms.
• Hair Straightening Creams / Relaxers: Cleaves disulfide bonds to soften hair, working in conjunction with neutralizers to achieve permanent straightening.
• Depilatory Creams / Lotions: Softens body hair keratin to facilitate easy removal; the preferred choice for mild depilatory products.
• Recommended Concentration: 5%–15% for perming/straightening; 2%–8% for depilatory use.

• Metal Corrosion Inhibition: Forms a protective FeS film in high-temperature brine/completion fluids to inhibit carbon steel corrosion (140–200℃).
• Chemical Analysis: Used as a masking agent and reducing agent for the photometric determination of ions such as iron, aluminum, silver, and tin.
• Material Modification: Serves as a thiolating agent for the preparation of adsorption materials and functional polymers.
• Electronic Cleaning: Acts as an auxiliary agent for metal surface treatment and cleaning.