Homosalate

Product Description

Direct factory supply of high-purity Homosalate (CAS 118-56-9), a synthetic UVB filter produced from salicylic acid and 3,3,5-trimethylcyclohexanol. Each lot is batch-tested with COA traceability for accountable B2B cosmetic-grade procurement.

This oil-soluble salicylate ester absorbs UVB near 306 nm, limiting erythema and photoaging-linked matrix stress. Homosalate also solubilizes solid organic filters, improving SPF uniformity in hybrid sunscreen emulsions.

Specified for water-resistant sport sunscreens, daily facial fluids, and makeup primers where photostable UVB filters replace weaker salicylate-only systems in broad-spectrum defense lines.

Product Specification

• INCI Name: Homosalate
• CAS No.: 118-56-9
• Sequence: N/A — not applicable (Typical)
• Molecular Formula: N/A — not applicable (Typical)
• Purity (HPLC): N/A — not applicable (Typical)
• Extraction Ratio: N/A — not applicable (Typical)
• Appearance: Colorless to pale yellow clear liquid, faint ester odor (Typical)
• Solubility: Oil-miscible; insoluble in water; soluble in ethanol (Typical)
• Suggested pH: Stable in finished emulsions pH 4–8 (Typical)
• Assay Method: GC purity assay; UV absorbance at 306 nm (Typical)
• Shelf Life: 24 months sealed, 15–25°C, away from heat (Typical)
• Standard Packaging: 1 kg / 5 kg / 25 kg HDPE drums (Typical)
• Storage: Store sealed, cool, dry; protect from heat and light (Typical)
• Regulatory Status: EU Annex VI UV filter (CosIng); regional limits apply (Typical)
• Quality & Testing: GC purity, UV profile, heavy metals per batch COA (Typical)
• Compliance Note: For cosmetic use only; comply with local UV filter maximum concentrations (Typical)

Key Benefits & Applications

Homosalate delivers UVB filtration, filter solubilization, and photostable broad-spectrum support in sun care and daily defense formulas.

• Absorbs UVB near 306 nm to limit erythema and photoaging-linked matrix damage in sunscreens.
• Mitigates cumulative UV stress that drives elastin degradation in chronically exposed skin areas.
• Supports daily UV defense when combined with UVA filters in facial fluids and makeup primers.
• Solubilizes solid organic UV filters, improving dispersion and SPF uniformity in hybrid emulsions.
• Reduces UV-driven collagen matrix breakdown in leave-on sport and outdoor sun care systems.

Formulation Guidelines

Homosalate serves as a UVB filter and filter solubilizer; follow regional concentration limits and oil-phase guidance below.

• Use at 2–15% w/w per regional limits; typical 5–10% in SPF 15–50 emulsions (Typical).
• Add during oil phase; miscible with common emollients, esters, and ethanol co-solvents (Typical).
• Photostable salicylate; pair with UVA filters and photostabilizers in broad-spectrum systems (Typical).
• Avoid prolonged heating above 80°C; cool-add when co-formulating with heat-sensitive actives (Typical).
• Suitable for creams, gels, sticks, and makeup with water-resistant outdoor claims (Typical).
• Synergy: Pair Avobenzone at 2–3% with homosalate to broaden UVA–UVB coverage in SPF 30+ emulsions.