Dilauryl Thiodipropionate

Product Description

Our high-purity Dilauryl Thiodipropionate is manufactured under ISO-aligned controls with batch COA traceability, supplying cosmetic formulators direct factory pricing and flexible kilogram-to-tonne bulk volumes for lipophilic formulation systems.

This sulfur-containing thiodipropionate ester scavenges free radicals in cosmetic oils and emulsion oil phases—preventing rancidity of unsaturated lipids, stabilizing retinoids and fragrances, and extending shelf life of antioxidant-sensitive skin care and sun-care formulas.

Unlike BHT or single-chain phenolics with sensory concerns, this CosIng-listed thioester suits clean-label oil-phase stabilization where formulators want GC-verified assay, low odor impact, and direct factory supply.

Product Specification

• INCI Name: Dilauryl Thiodipropionate
• CAS No.: 123-28-4
• Appearance: White to off-white waxy flakes or pellets (Typical)
• Solubility: Soluble in cosmetic oils and ethanol; insoluble in water (Typical)
• Suggested pH: Stable across emulsion pH 4–8 when incorporated in oil phase (Typical)
• Assay Method: GC ester assay; acid value (Typical)
• Shelf Life: 24 months sealed, below 25°C (Typical)
• Standard Packaging: 25 kg / 200 kg
• Storage: Keep sealed, cool, dry; protect from heat and strong oxidizers (Typical)
• Regulatory Status: Listed in CosIng as Dilauryl Thiodipropionate; INCI recognized antioxidant
• Quality & Testing: Typical COA covers ester content, acid value, and peroxide value
• Compliance Note: For cosmetic use only; typical use 0.05–0.5% w/w as lipophilic antioxidant and formula stabilizer

Key Benefits & Applications

Dilauryl Thiodipropionate supports lipophilic antioxidant and formula-stabilizing claims through thioester activity suited to oil-serum and emulsion formulators.

• Antioxidant Protection: Thiodipropionate ester scavenges radicals to protect unsaturated oils in emulsions, balms, and lipophilic serums.
• Free Radical Scavenging: Neutralizes lipid-phase free radicals that accelerate rancidity in botanical oil-rich formulas.
• ROS Inhibition: Suppresses reactive oxygen species formation in oil phases exposed to heat and light during storage.
• Anti-Aging Defense: Helps preserve retinoids, vitamin E, and other oxidation-sensitive anti-aging actives in finished products.
• Photo-Aging Protection: Stabilizes sun-care and day-cream oil phases against UV-accelerated lipid peroxidation.

Formulation Guidelines

Add dilauryl thiodipropionate to the oil phase; melt if needed and confirm peroxide stability before accelerated aging tests.

• Recommended use level: 0.05–0.5% w/w as formula antioxidant; up to 0.3% in clear oil serums (Typical).
• Optimal formula pH: Effective across pH 4–8 when dissolved in oil phase before emulsification (Typical).
• Processing: Melt at 40–60°C into oil phase; pre-blend with carrier oils for even dispersion.
• Compatibility: Synergizes with tocopherol and ascorbyl palmitate; suitable for W/O and O/W emulsions.
• Caution: Primary role is formula stabilization—not a standalone skin active; pair with topical antioxidants for consumer claims.
• Synergy: Pair Tocopherol at 0.5–1% with dilauryl thiodipropionate in oil serums for stacked lipophilic antioxidant protection.