Description
CYCLOPENTASILOXANE (D5)
INCI Name: Cyclopentasiloxane
Common Name: Cyclopentasiloxane / D5
Chemical Name: Decamethylcyclopentasiloxane
CAS No.: 541-02-6
Chemical Formula: C₁₀H₃₀O₅Si₅
Molecular Weight: 370.77 g/mol
Chemical Type: Cyclic volatile silicone / cyclic siloxane
Ionic Character: Nonionic
Appearance: Clear, colorless, low-viscosity liquid
Solubility: Insoluble in water; compatible with many silicones and lipophilic cosmetic ingredients
Primary Functions: Sensory Modifier • Spreading Agent • Volatile Carrier • Skin Conditioning Agent • Emollient
PRODUCT DESCRIPTION
Cyclopentasiloxane (D5) is a lightweight, volatile cyclic silicone widely used in cosmetic and skincare formulations to provide excellent spreadability, silky slip and an elegant, non-greasy sensory profile.
Its low viscosity allows formulations to spread smoothly and uniformly across the skin, helping creams, lotions and serums feel lighter and easier to apply.
After application, Cyclopentasiloxane gradually evaporates from the skin surface, leaving behind a smooth and silky after-feel with reduced heaviness and greasiness.
This characteristic makes D5 particularly useful in formulations containing richer emollients, oils or butters where a lighter sensory profile is desired.
Cyclopentasiloxane can also function as a volatile carrier for suitable oil-soluble and silicone-compatible ingredients, helping distribute them evenly during application.
Its combination of fast spreading, volatility, silky slip and lightweight sensory performance makes it particularly valuable in premium facial creams, moisturizers, serums and other elegant skincare formulations.
FUNCTIONS & BENEFITS
Sensory Modifier
Provides a silky, smooth and elegant skin feel while helping reduce the perception of heaviness and greasiness.
Spreading Agent
Improves the spreadability of creams, lotions, serums and other cosmetic formulations across the skin.
Volatile Carrier
Acts as a temporary carrier during application and gradually evaporates from the skin surface.
Skin Conditioning Agent
Contributes to a smooth, soft and pleasant skin feel.
Lightweight Emollient
Provides slip and lubrication without creating the heavy feel associated with some non-volatile emollients.
Non-Greasy After-Feel
Helps formulations achieve a lighter, drier and more refined sensory finish.
Texture & Application Enhancement
Improves glide and ease of application, particularly in premium skincare products.
Formulation Versatility
Useful in emulsions, anhydrous systems and silicone-containing cosmetic formulations.
APPLICATIONS
Suitable for:
Face Cream • Day Cream • Night Cream • Moisturizer • Body Cream • Body Lotion • Facial Serum • Eye Cream • Primer • Foundation • Facial Oil • Hand Cream • Premium Skincare Products
It is particularly useful in formulations where fast spreading, silky slip, reduced greasiness and a lightweight after-feel are desired.
STORAGE
Store in the original tightly closed container in a cool, dry and well-ventilated place.
Keep away from excessive heat, direct sunlight and sources of ignition.
Because Cyclopentasiloxane is volatile, keep containers tightly closed to minimize evaporation and product loss.
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