What Is Lauryl Polydimethylsiloxyethyl Dimethicone/Bis-Vinyldimethicone Crosspolymer?
Lauryl Polydimethylsiloxyethyl Dimethicone/Bis-Vinyldimethicone Crosspolymer is a silicone based ingredient created by linking two different silicone chains, lauryl polydimethylsiloxyethyl dimethicone and bis-vinyldimethicone, into a flexible three-dimensional network. The result is a lightweight smooth powder that feels silky on the skin.
Silicones first entered skincare in the 1950s for their ability to form soft breathable films. Over time chemists learned to tailor them for richer textures and better wear, which led to crosslinked versions like this one showing up in the early 2000s when brands wanted primers and serums that felt velvety yet non-greasy.
The ingredient is made in a controlled reactor where the two silicone types are blended, then treated with a catalyst that encourages small vinyl groups to link together. Once the network has formed, the material is washed, dried and milled into a fine powder ready for use.
You will mainly find it in face primers, liquid foundations, BB creams, pressed powders, lightweight moisturizers, sunscreens, hair smoothing serums and some wash-off masks where a soft cushiony feel is desired.
Lauryl Polydimethylsiloxyethyl Dimethicone/Bis-Vinyldimethicone Crosspolymer’s Cosmetic Benefits/Uses
This ingredient carries out one primary job that can make a big difference to how a product looks and feels.
As a viscosity controlling agent it adjusts thickness so a formula spreads evenly and stays put without dripping. In thin lotions it adds body for a more elegant glide while in thicker creams it helps stabilize the structure so the product does not separate over time. Because it is powdery and non-tacky it can also leave a soft focus finish that blurs fine lines and reduces shine, giving skin or hair a smoother appearance.
Who Can Use Lauryl Polydimethylsiloxyethyl Dimethicone/Bis-Vinyldimethicone Crosspolymer
This silicone powder suits almost every skin type. Oily and combination skin benefit from its lightweight non-greasy feel while dry or mature skin enjoy the silky slip that helps prevent tugging. Sensitive skin usually tolerates it well because the molecule is inert and sits on the surface rather than penetrating. The only group that may choose to avoid it are people who know they react poorly to silicones in general or those following a strictly silicone-free routine.
The ingredient is made entirely in a lab from petroleum-derived feedstocks so it contains no animal by-products, making it suitable for vegans and vegetarians.
Current safety data shows no reproductive or developmental concerns so products containing this polymer are generally considered safe for pregnant or breastfeeding women. This is not medical advice and anyone who is expecting or nursing should confirm suitability with a healthcare professional.
Lauryl Polydimethylsiloxyethyl Dimethicone/Bis-Vinyldimethicone Crosspolymer is not known to cause photosensitivity, meaning it will not make skin more likely to burn in the sun. Still, daily sunscreen is always recommended for overall skin health.
Potential Side Effects/Adverse Reactions
Responses to topical ingredients vary from person to person. The issues listed below are possible yet uncommon assuming the product has been well formulated and applied as directed.
- Mild skin irritation such as redness itching or a stinging sensation
- Acne-like breakouts if heavy layers trap oil and debris on very clog-prone skin
- Allergic contact dermatitis in individuals already sensitized to silicones
- Eye irritation or watering if loose powder accidentally gets into the eyes
- Product pilling when combined with certain water-rich serums which may lead to flaking on the skin surface
If any discomfort or adverse change in the skin occurs stop using the product and consult a dermatologist or healthcare provider.
Comedogenic Rating
Rating: 1/5
This silicone polymer has a large, crosslinked structure that tends to sit on the skin surface rather than seeping into pores. It is non-oily, does not feed bacteria and forms a breathable film, so the likelihood of clogging is low. A small risk remains if heavy, occlusive layers trap sweat or sebum underneath, which is why it is not given a perfect zero.
Suitable for acne-prone skin in most cases.
Because the ingredient is almost always blended with other materials, overall pore-clogging potential depends on the full formula not the polymer alone.
Summary
Lauryl Polydimethylsiloxyethyl Dimethicone/Bis-Vinyldimethicone Crosspolymer is mainly used to control viscosity, thicken thin lotions and stabilize richer creams. Its powder-like texture also blurs fine lines and cuts shine, giving products a smooth velvet finish. It does this by creating a flexible three-dimensional network that holds oils and water in place while gliding easily over skin or hair.
The polymer is moderately popular in modern primers, lightweight foundations and sunscreen hybrids, though it is less common than simpler dimethicone variants due to higher cost and niche textural benefits.
Current research shows a strong safety profile with minimal irritation or sensitization reports. As with any new cosmetic it is smart to patch test a product containing this ingredient to ensure personal compatibility.