What Is Polysilicone-22?
Polysilicone-22 is a man-made silicone polymer created in a multi-step reaction that starts with hydrogen dimethicone and the olefin dodecene. These two ingredients combine to build a flexible siloxane backbone, which is then crosslinked with bis-vinyldimethicone to add strength and stability. After crosslinking, the material is treated with methyltrimethoxysilane and aminopropyl trimethoxysilane, forming a thin resinous shell around the silicone network. The result is a clear to slightly hazy gel-like substance that is easy to blend into cosmetic bases.
Silicones began making waves in beauty products in the 1970s thanks to their silky feel and water resistance. As formulators looked for ways to fine-tune texture without heavy oils, more advanced silicone structures like Polysilicone-22 were developed in the early 2000s. Its primary draw is how well it controls thickness while lending a smooth, cushiony glide.
The ingredient is produced in closed reactors that carefully control temperature and pressure to guide each reaction step. Once polymerization and surface treatment are complete, the final gel is filtered and quality-checked before shipment to cosmetic labs.
You will commonly see Polysilicone-22 in lightweight lotions, hydrating face masks, anti-aging serums, makeup primers, foundations, hair smoothing creams and even some sunscreens where a non-greasy feel is important.
Polysilicone-22’s Cosmetic Benefits/Uses
Within a formula Polysilicone-22 serves one main purpose: viscosity controlling. By adjusting the thickness of a product it helps emulsions stay stable so water and oil do not separate, keeps pigments evenly suspended in makeup and gives creams or serums a plush glide that spreads easily without feeling oily. The result is a finished product that feels elegant, applies evenly and maintains its consistency from the first use to the last.
Who Can Use Polysilicone-22
Polysilicone-22 is light and non greasy so it works well for oily, combination and normal skin. Its cushiony texture can also help soften the feel of dry, sensitive or mature skin because it glides without tugging and helps lock in moisture from other ingredients. People with extremely acne prone skin generally tolerate it, yet those who find any silicone film uncomfortable may opt for a silicone-free formula.
The polymer is fully synthetic and contains no animal derived substances which makes it suitable for vegans and vegetarians as long as the finished product is also free of animal sourced additives.
Current safety reviews do not flag Polysilicone-22 as problematic for women who are pregnant or breastfeeding because it is not absorbed through intact skin. This article is not medical advice so anyone who is expecting or nursing should still ask a healthcare professional before adding new skincare to their routine.
The ingredient does not increase photosensitivity and it is stable under UV light, so it can be used day or night without raising sunburn risk.
Potential Side Effects/Adverse Reactions
Side effects from topical Polysilicone-22 vary from person to person. The points below list potential reactions only and they are unlikely for most users when the product has been properly formulated.
- Mild transient stinging or redness on very sensitive skin
- Rare allergic contact dermatitis in individuals with a silicone allergy
- Temporary pore congestion if used in an overly rich formula on skin prone to clogged pores
- Watery eyes or irritation if the product accidentally gets into the eye area
If any of these reactions occur discontinue use and seek medical advice if symptoms persist or worsen.
Comedogenic Rating
Rating: 1/5. Polysilicone-22 forms a lightweight breathable film that does not penetrate pores or supply fatty acids that feed surface bacteria, so it rarely triggers new breakouts. Its slick texture can, however, hold other heavier ingredients on the skin a bit longer which is why a small number of very clog-prone users might notice congestion when a formula is rich in occlusive oils or waxes.
Overall this ingredient is considered safe for acne-prone skin.
Because Polysilicone-22 is often paired with pigments, sunscreens and emollients, the total formula matters more than the silicone itself when evaluating clogging risk.
Summary
Polysilicone-22’s main job is to control viscosity while adding a smooth cushiony glide. It keeps water and oil phases bound together, suspends pigments evenly and gives creams lotions serums and makeup primers a light non greasy feel that lasts from first pump to final use.
Although not as well known as classics like dimethicone it is quietly popular among formulators who need reliable texture control without heaviness. You will mainly spot it in mid to high tier skincare and complexion products rather than basic moisturizers.
Current research shows it is low risk for irritation allergy and photosensitivity. Still whenever you try a new product containing Polysilicone-22 or any unfamiliar ingredient it is wise to perform a quick patch test to ensure your individual skin reacts well.