LK-145
INCI: Cyclopentasiloxane
Introduction:
LK-145 is a volatile Polydimethylcyclosiloxane composed mainly of Cyclopentasiloxane. It delivers excellent spreading properties, easy rub-out, and enhances sensory experience. LK-145 effectively reduces tackiness, offers low surface tension, and provides smooth lubrication. In hair and skin care formulations, it promotes wet combing, detangling, and faster drying time, while imparting a soft, silky feel without leaving behind any oily residue or buildup. The product is non-greasy, non-occlusive, non-stinging, and exhibits broad compatibility with a wide range of cosmetic ingredients, making it a versatile choice for modern personal care formulations.
At Elkay Silicones, we supply premium-grade Cyclopentasiloxane engineered to deliver unmatched consistency and purity.
Beyond personal care, Cyclopentasiloxane is valued in industrial and automotive applications for its lubrication, carrier, and cleaning properties.
Key Features:
- Low viscosity for easy blending
- Fast-evaporating, non-greasy finish
- Enhances spreadability and slip
- Leaves a soft, silky after-feel
- High purity
- Excellent carrier for active ingredients
Technical details:

Application:
Hair Care : Hair serum, conditioner

Provides excellent slip and detangling in conditioners, leave-in treatments, and styling products. Helps smooth the hair shaft, adding shine without weighing hair down.
- Adds shine and improves comb ability
- Conditions without build-up
- Used in serums, conditioners, and leave-in treatments
Skin Care: Body lotion, creams
Acts as a fast-drying carrier for active ingredients in lotions, serums, and creams. Delivers a smooth, non-tacky finish that enhances product absorption and user comfort.
- Acts as a lightweight emollient and carrier
- Provides a smooth, velvety feel
- Suitable for creams, lotions, serums, and sunscreens.

Colour Cosmetics: Primer, BB creams, blushes

Enhances blend ability and application of foundations, primers, and blushes. Gives a soft-focus effect and improves spreadability for a flawless finish.
- Enhances application and compatibility
- Reduces tackiness in foundations and primers
- Ideal for lipsticks, BB creams, and blushes
FAQs
What is the INCI name of LK-145?
The INCI (International Nomenclature of Cosmetic Ingredients) name is Cyclopentasiloxane.
What is LK-145?
LK-145 is a low-viscosity, volatile silicone used widely in personal care and cosmetic formulations for its smooth texture and quick-drying properties.
What does LK-145 do in cosmetics and personal care products?
It acts as a carrier fluid, helping spread ingredients evenly and evaporating after application, leaving a silky, non-greasy finish.
Does LK-145 have any odour interaction properties?
LK 145 is odourless and often used as a carrier for fragrances, helping them spread evenly and dry quickly.
What is the shelf life of LK 145 (Cyclopentasiloxane)?
30 months from date of manufacture when stored in a cool, dry, airtight container away from sunlight and moisture.
Where is LK 145 commonly used?
You’ll find LK-145 (Cyclopentasiloxane) in deodorants, antiperspirants, hair serums, lotions, sunscreens, and color cosmetics like foundations and primers.
What is the typical usage level of LK 145 in personal care formulations?
Typical usage levels range from 2% to 20%, depending on application:
• 2–5% in creams and lotions
• 10–20% in sprays or hair serums
• Up to 90% in dry deodorants
What kind of texture does LK-145 give to a product?
LK-145 imparts a light, silky, non-oily feel and improves product spreadability.
Why do formulators prefer LK-145?
Because of its evaporation, lightweight feel, and compatibility with a wide range of ingredients including silicones and actives.
How does LK-145 work in hair care products?
It helps to detangle, add shine, and smooth frizz without weighing the hair down or leaving build-up.
Is LK-145 natural or synthetic?
It is a synthetic silicone, originally derived from silica (sand) but modified through chemical processes.
Does LK-145 stay on the skin or does it evaporate?
It evaporates after application, making it ideal for products that need a clean, dry finish.
Can LK-145 be used with other silicones or oils?
Yes, it is compatible with many silicones, oils, esters, and active ingredients, making it highly versatile.
Is LK-145 manufactured in China?
No, LK-RX22D T245 is not manufactured in China. It is produced by Elkay Chemicals in India, adhering to high-quality manufacturing standards and strict regulatory compliance. We ensure consistent product quality and reliable supply from our state-of-the-art facility in India.
Can this product be shipped to international destinations?
Yes, LK-145 manufactured by Elkay Chemicals in India is available for international shipping. We supply to customers across various global regions, including:
North America, South America, Europe, Asia, the Middle East, Africa, and Australia.
Our logistics and export team ensures smooth and compliant delivery to all major international markets. For detailed shipping information and support, please contact our sales team.