Cyclomethicone

Product Description

Direct factory supply of high-purity Cyclomethicone (CAS 69430-24-6), a volatile cyclic dimethyl siloxane blend dominated by D5 and D6 fractions. Each lot is batch-tested with COA traceability for accountable B2B cosmetic and personal-care sourcing.

This low-viscosity (~4 cSt) silicone evaporates after application, leaving silky slip without greasy residue. Cyclomethicone solubilizes silicone-compatible actives and disperses pigments evenly across skin and hair surfaces.

Specified for face primers, volatile foundations, hair serums, and antiperspirant bases where cyclic siloxanes replace heavier dimethicone in lightweight, fast-dry formulation architectures.

Product Specification

• INCI Name: Cyclomethicone
• CAS No.: 69430-24-6
• 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 transparent volatile liquid, essentially odorless (Typical)
• Solubility: Insoluble in water; miscible with oils, ethanol, esters (Typical)
• Suggested pH: Chemically inert; stable pH 3–10 in anhydrous systems (Typical)
• Assay Method: GC cyclosiloxane profile; D4/D5/D6 composition (Typical)
• Shelf Life: 24 months sealed, 15–25°C, away from ignition sources (Typical)
• Standard Packaging: 1 kg / 5 kg / 25 kg / 200 kg steel drums (Typical)
• Storage: Store sealed, cool, ventilated; flash point ~77°C (Typical)
• Regulatory Status: Listed in CosIng as Cyclomethicone; D4/D5 limits apply (Typical)
• Quality & Testing: GC purity, D4 content, moisture, per batch COA (Typical)
• Compliance Note: For cosmetic use only; verify D4/D5/D6 levels per regional regulations (Typical)

Key Benefits & Applications

Cyclomethicone delivers volatile emolliency, active carrier performance, and sensory refinement in skin, hair, and color-cosmetic systems.

• Forms temporary even film before volatilization in primers and color-cosmetic bases.
• Serves as volatile carrier for silicone-soluble actives and UV filters in anhydrous phases.
• Delivers instant dry-touch slip in serums, antiperspirants, and lightweight body mists.
• Improves rub-in play-time and pigment laydown in liquid foundations and face primers.
• Smooths skin texture feel without long-term occlusive heaviness in daily care emulsions.

Formulation Guidelines

Cyclomethicone is a volatile silicone carrier; add in oil or silicone phase following concentration and safety notes below.

• Use at 1–30% w/w; typical 5–15% in serums, up to 50% in volatile foundations (Typical).
• Add to oil/silicone phase; low viscosity (~4 cSt) aids cold-process incorporation (Typical).
• Compatible with dimethicone, esters, and hydrocarbons; requires emulsifier for aqueous systems (Typical).
• Flash point ~77°C; avoid open flame and excessive heat during manufacturing (Typical).
• Source EU-compliant grades with controlled D4 content per Annex II restrictions (Typical).
• Synergy: Phenyl Trimethicone adds refractive glow when carried in cyclomethicone for silk-finish liquid foundation bases.