• Delivers a luxurious, powdery skin feel
• Controls shine and blurs imperfections
• Perfect base for primers, makeup, and serums
• Leaves no greasy or sticky residue
• Stable in anhydrous and emulsified formulations

Cyclopentasiloxane & Dimethicone Crosspolymer – Silky Smooth Base for Serums & Primers

This silicone blend features Cyclopentasiloxane (D5), a volatile silicone that evaporates after application, and Dimethicone Crosspolymer, a gel-forming elastomer. Together, they create a lightweight, cushiony feel perfect for oil-free serums, blur creams, mattifying primers, and shine-free hair products. They enhance spreadability, reduce tackiness, and act as excellent carriers for actives, pigments, and oils. The resulting textures feel powdery, soft, and airbrushed on the skin.

INCI Name: Cyclopentasiloxane (and) Dimethicone Crosspolymer

CAS Number: 541-02-6 / 63394-02-5

Solubility: Oil-soluble; insoluble in water

Add Phase: Post-emulsion or anhydrous base

pH Stability: Not affected by pH

Processing Temperature: Max 50°C (heat gently if needed)

Appearance: Translucent, smooth silicone gel

Odor: Odorless

Molecular Formula: (C₁₀H₃₀O₅Si₅)n + (Dimethicone crosspolymer)

Molecular Weight: Variable, polymeric

Flash Point: > 77°C

Density: ~0.95 g/cm³

Chemical Type: Silicone elastomer in volatile carrier

Functional Groups: Siloxane, Crosslinked Polymers

Primary Cosmetic Uses: Makeup primers, facial serums, silicone masks, anti-frizz hair care

• Usage Rate: 3% – 20%
• Phase: Anhydrous phase or post-emulsification
• Ideal For: Blur serums, mattifying primers, dry oils, silky conditioners

💡 Use Cyclopentasiloxane & Dimethicone Crosspolymer to suspend shimmer particles, vitamin oils, or fragrance in an anhydrous serum. Perfect for weightless primers and dry oil finishes with no tackiness.

✔️ Excellent for oily, normal, combination, and mature skin

✔️ Non-comedogenic and safe for acne-prone skin

✔️ Also ideal for hot climates due to fast-dry and mattifying effect

1. Matte Blur Primer

Use 15% as a standalone silicone-based primer or blend with color pigments for BB/CC creams.

2. Silky Hair Finishing Serum

Blend 10–15% with Cyclopentasiloxane and lightweight oils for shine and anti-frizz control.

3. Glow Serum Base

Use 10% to suspend mica or shimmer oils for a weightless glow effect.

4. Under-Eye Smoother

Add 8% to eye creams to soften lines and create a soft-focus finish.

5. Lip Primer Base

Combine with wax esters and oils for smoother lipstick application.

Serums
⭐⭐⭐⭐⭐ – Excellent
🟩🟩🟩🟩🟩 – Ideal for silky serum textures.



Creams & Lotions
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Adds dry-touch slip and elegance.



Toners
⭐☆☆☆☆ – Poor
🟥⬜⬜⬜⬜ – Not compatible with water-only formulas.



Face Masks
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Great in peel-off or sleep masks.



Cleansers
⭐⭐☆☆☆ – Fair
🟧🟧⬜⬜⬜ – Suitable in oil balms or cream cleansers.



Hair Masks
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Smoothens and adds anti-frizz effect.



Deodorants
⭐⭐☆☆☆ – Fair
🟧🟧⬜⬜⬜ – In dry-touch roll-ons.



Eye Creams
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Softens appearance of fine lines.



Shampoos
☆☆☆☆☆ – Not Suitable
🟥⬜⬜⬜⬜ – Not water-phase compatible.



Soaps
☆☆☆☆☆ – Not Suitable
🟥⬜⬜⬜⬜ – Incompatible with saponification.



Conditioners
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Adds dry-smooth finish in rinse-off and leave-on.



Lip Balms
⭐⭐⭐☆☆ – Moderate
🟧🟧🟧⬜⬜ – Improves glide and base flexibility.



Body Butters
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Lightens heavy formulations, reduces stickiness.



Ointments
⭐⭐⭐☆☆ – Moderate
🟧🟧🟧⬜⬜ – Adds spreadability to healing balms.

Q1: Is this silicone safe for oily/acne-prone skin?

A1: Yes! It’s non-comedogenic and breathable, commonly used in acne-safe primers.

Q2: Can I use this in water-based formulas?

A2: No. It is oil-soluble and best suited for anhydrous systems or emulsions.

Q3: Does it leave a greasy film?

A3: No. It provides a dry, powdery after-feel, making it ideal for matte finishes.