Primosil™ Silicones for Cosmetics: Flychem’s High-Converting B2B Ingredient Guide

1 जून 2025

Woman applying silicones-infused sunscreen for optimal skin protection at the beach.

Why Primosil™ Silicones Are the New Texture Standard

Flychem’s Primosil™ silicone platform is engineered for sensory elevation, SPF performance, and compatibility with clean formulations. From transparent mineral sunscreens to velvety primers, Primosil™ grades help formulators balance glide, film-forming, spreadability, and consumer appeal. With Flychem, you get:

9 Primosil™ silicone grades + 1 silica powder
INCI-aligned, MoCRA + REACH + BIS ready
Rapid samples, tech dossiers, and stability-tested documentation

Global Demand for Silicone Alternatives & Crosspolymer Systems

65% of SPF brands now use silicone dispersions to reduce white cast
Volatile D5 restrictions push innovation in hybrid elastomers
PEG-10 dimethicone in demand for water-dispersible sunscreens & gel-serums

Top Applications:

Invisible SPF (mineral & hybrid)
Sensory-optimized moisturizers
Pore-blurring primers
Transfer-proof foundations

Primosil™ Portfolio Overview

Sensory Profiling by Grade

Primosil™ 67C (Caprylyl Methicone): Ultra-light slip, non-oily evaporation, ideal for featherlight finishes.
Primosil™ 34DT (Cyclopentasiloxane & Crosspolymer): A soft, cushiony feel with a powdery aftertouch—perfect for primers.
Primosil™ CS (Cyclopentasiloxane): Fast-drying, low-residue slip with zero tack.
Primosil™ 645 (Dimethicone & Vinyl Crosspolymer): Silicone elastomer texture with a semi-matte feel.
Primosil™ D1000 (Dimethicone 1000 CST): Rich emolliency, high viscosity drag, long-lasting barrier effect.
Primosil™ D350 (Dimethicone 350 CST): Balanced spread with silky finish—non-oily, non-greasy.
Primosil™ MT (Methyl Trimethicone): High volatility with ultra-clean finish—ideal for quick-dry textures.
Primosil™ P10 (PEG-10 Dimethicone): Mild cushion with water-like spreadability in emulsions.
Primosil™ TMS (Trimethylsiloxysilicate): Film-forming, slightly tacky on application, sets to a transfer-resistant film.
Primosil™ UL (Dimethicone 0.65cSt): Ultra-fast spreading, dry finish with instant sensory break—ideal for sprays and hair mists.
Primosil™ EX5 (Dimethicone + PEG-10 Dimethicone / Vinyl Dimethicone Crosspolymer): Hybrid sensory—glide of silicone with the slip of PEG emulsifier, ideal for sunscreen and gel creams.

Silicone-based serum droppers highlighting innovative cosmetic ingredient solutions

INCI Name	Primosil™ Grade	Format	Recommended Use Level
Caprylyl Methicone	67C	Volatile emollient	1–10%
Cyclopentasiloxane + Crosspolymer	34DT	Elastomer gel	3–15%
Cyclopentasiloxane	CS	Volatile carrier	2–8%
Dimethicone + Vinyl Crosspolymer	645	Film-former	1–5%
Dimethicone (1000 CST)	D1000	Heavy emollient	0.5–2%
Dimethicone (350 CST)	D350	Mid-weight emollient	1–5%
Methyl Trimethicone	MT	Volatile slip agent	2–10%
PEG-10 Dimethicone	P10	Water-dispersible silicone	1–4%
Trimethylsiloxysilicate	TMS	Resin-type film former	0.5–3%
Dimethicone (0.65 cSt)	UL	Ultra-volatile carrier	0.5–8%
Dimethicone (and) PEG-10 Dimethicone / Vinyl Dimethicone Crosspolymer	EX5	PEG-modified crosspolymer	1–5%

Recommended Use Cases (Skincare & Haircare)

Format	Key Grades	Functional Outcome	Use Examples
SPF Cream (Mineral)	P10, 645, CS, EX5	Smooth finish, non-whitening SPF dispersion	Daily wear sunscreen, tinted SPF base
Pore-Blur Primer	34DT, TMS	Soft-focus effect, oil control	Matte primer, silicone-based BB base
Gel Cream Emulsion	MT, P10, D350, EX5	Lightweight, hydrating, non-tacky finish	K-beauty gel cream, sensitive skin moisturizers
Anhydrous Stick	D1000, 645, TMS	Transfer-proof texture, emollient base	Lip balm, sunscreen stick, color stick
Scalp Mist / Spray	MT, CS, P10, UL	Light, volatile sensory	Hair tonics, anti-frizz spray, scalp serum
Hair Serum (Leave-on)	D350, MT, TMS, UL	Gloss, detangling, flyaway control	Non-oily smoothing serum, anti-static mist
Barrier Cream	D1000, 645, PEG-10 Dimethicone	Moisture seal, glide without heaviness	Rich night repair cream, barrier balm

Detailed view of silicone cosmetic gel texture showcasing premium formulation quality.

Format	Key Grades	Functional Outcome
SPF Cream (Mineral)	P10, 645, CS	Smooth finish, SPF hold
Pore-Blur Primer	34DT, TMS	Soft-focus + matte texture
Gel Cream Emulsion	MT, P10, D350	Fast-drying, spreadable
Anhydrous Stick	D1000, 645, TMS	Emollient + transfer-proof
Scalp Mist / Spray	MT, CS, P10	Light, volatile sensory

Inline ROI Snapshot: Why Formulators Choose Flychem

Sample cost: <$0.10 per unit in SPF or primer base
Retail uplift from silicone-enhanced texture: +$20–30
Repurchase retention: 75–82% when compared to non-silicone bases

Case Study: Primosil™ 34DT in Hybrid CC Cream

Flychem’s elastomer gel (Primosil™ 34DT) used at 10%
Result: Smoother pigment spread, better SPF hold, 25% increase in wear-time
Reduced white cast when paired with ZnO + iron oxide blend

Regulatory Alignment by Region

Region	Key Considerations
USA (MoCRA)	✅ INCI-aligned, no OTC restriction
EU (REACH)	✅ D5 in rinse-off <0.1% only (CS, 34DT advisory)
India (BIS)	✅ All Primosil™ grades listed
UAE / GCC	✅ Permitted; Arabic/English label ready
China (IECIC)	✅ All but CS/34DT unrestricted