Primosil™ D350 (Dimethicone 350 CST)

Primosil™ D350 (Dimethicone 350 CST) offers excellent benefits in personal care and cosmetics due to its moderate viscosity and exceptional performance as a silicone-based emollient. This ingredient delivers a silky smooth feel to the skin, enhancing the application experience of skincare products like moisturizers and serums. It forms a breathable, non-greasy barrier that helps to prevent moisture loss, thereby improving skin hydration and elasticity. It is also highly effective in hair care products, providing a noticeable reduction in frizz and an increase in shine, making hair more manageable and aesthetically pleasing. In makeup formulations, it aids in creating a smooth canvas by filling in fine lines and pores, which helps to improve the longevity and appearance of foundation and primers. Furthermore, its compatibility with a wide range of cosmetic ingredients makes it a versatile choice for stabilizing and enhancing the texture of numerous beauty products.

Technical Specifications
PrimosilTM D350 (Dimethicone 350 CST)
INCI
Dimethicone 350 CST
CAS Number
63148-62-9
Purity
99%
Molecular Formula
(C2H6OSi)n
Molecular Weight
62.37 g/mol
Solubility
Soluble In Alcohol; Insoluble In Water and Oils.
pH
5.5-8.5
Shelf Life
24 months from the date of manufacturing.
Boiling Point
155-220°C
Melting Point
-35°C
Storage
Store in a cool, dry place in tightly sealed containers. Protect it from moisture and extreme temperatures.
Supplier
Flychem
SKU
FCB-076
Key Benefits
PrimosilTM D350 (Dimethicone 350 CST)
Enhances Spreadability
Improves the spreadability of products, ensuring smooth, even application across skin, hair, or nails, enhancing user experience.
Provides a Silky Finish
Leaves a silky, smooth finish on the skin, improving the tactile sensation of creams, lotions, and makeup.
Forms a Protective Barrier
Creates a protective barrier that helps to lock in moisture and protect the skin and hair from environmental damage.
Conditions Hair
Offers excellent conditioning properties for hair, helping to detangle and reduce frizz for smoother, more manageable hair.
Smooths Skin Appearance
Helps smooth the appearance of the skin, reducing the visibility of fine lines and pores for a more even complexion.
Increases Makeup Longevity
Enhances the durability and adherence of makeup, helping it to last longer and resist smudging or fading throughout the day.
Moisturizing Properties
Acts as a moisturizer by helping to prevent water loss, keeping skin hydrated and preventing dryness, especially valuable in lip care.
Non-Comedogenic
Less likely to clog pores, making it suitable for use in face care products, particularly for those with sensitive or acne-prone skin.
Adds Gloss to Hair and Nails
Imparts a glossy, polished look to hair and nails, enhancing the visual appeal of hair treatments and nail polishes.
Enhances Water-Resistance
Boosts the water resistance of products, making them suitable for use in sun care and water-resistant makeup formulations.
Thermal Protection for Hair
Provides a protective layer that helps shield hair from damage caused by heat styling tools.
Reduces Tackiness
Reduces the sticky feel of products on application, improving comfort and wearability, especially important for sunscreens and lip products.
Stabilizes Emulsions
Helps to stabilize emulsions, maintaining the consistency and effectiveness of products over time.
Soothes Skin
Can soothe and calm irritated skin, beneficial for inclusion in after-sun, face, and body care formulations.
Improves Nail Care
Enhances the performance of nail care products, providing a smoother and more durable finish that resists chipping.
Lightweight Feel
Offers a lightweight, non-greasy feel, ideal for facial moisturizers and body lotions that require comfortable wear.
Improves Makeup Texture
Enhances the texture and ease of application for makeup, helping it to spread more smoothly and blend seamlessly.
Facilitates Faster Drying
Helps products to set or dry more quickly on the skin, reducing wait times in multi-step beauty routines.
Reduces Hair Breakage
Minimizes breakage by reducing friction during hair styling, beneficial for hair care products aimed at improving hair health.
Enhances Sunscreen Performance
Helps evenly distribute sunscreen agents, improving the efficacy of sun protection products by providing a more uniform protective barrier against UV radiation.

Frequently Asked Questions (FAQ)

What is Primosil™ D350 (Dimethicone 350 CST), and how does it benefit hair care products?

Dimethicone 350 CST is a low to medium-viscosity silicone that offers excellent conditioning properties for hair. It provides a silky, non-greasy finish and helps in detangling and reducing frizz.