Ingredient
Dimethicone
What is Dimethicone?
Dimethicone is a type of silicone used in various personal care products. It is a polymer made from silicon, oxygen, carbon, and hydrogen, and is known for creating a silky, smooth texture.
It is widely used in cosmetics as an anti-foaming agent, skin protectant, and conditioner due to its ability to form a barrier on the skin, providing a soft feel and helping to lock in moisture. The health evidence is mostly neutral; it is generally considered safe in typical use concentrations, with minimal risks reported.
When you see dimethicone on a label, it signifies that the product might be intended to create a smooth, hydrating effect especially suitable for dry skin or frizzy hair.
Commonly found in: Body Lotion, Deodorant, Skin Care, Sunscreen, Makeup, Hair Care
What to watch
- May cause skin irritation for those with sensitive skin.
Benefits
- Creates a smooth texture in personal care products.
- Helps to lock moisture in the skin.
The FDA lists dimethicone as a skin protectant and it is considered safe for use in cosmetics.
Research shows it is generally non-reactive and safe, though occasional irritation may occur.
Dimethicone is synthetic and generally regarded as vegan-friendly.
Sources: Cosmetic Ingredient Review Safety Assessment of Dimethicone
Scout's take
Occlusive silicone film-former — flagged under clean-beauty doctrine.
The case against
There are minimal risks associated with Dimethicone, though it may cause build-up on the skin with prolonged use.
from the analysis of Sun Bum Signature SPF 30 Lotion · echoed in 1 other analysisThere are minimal risks associated with this ingredient.
from the analysis of Kiehl's Since 1851 Creme de Corps Body Lotion with Cocoa Butter · echoed in 1 other analysisIt can potentially trap dirt and bacteria under the skin barrier, leading to breakouts in some individuals.
from the analysis of Sun Bum Mineral Liquid Face - SPF 30There is a potential for buildup on the skin, which may lead to clogged pores in some individuals.
from the analysis of CeraVe Sunscreen Stick SPF 50There is a slight risk of skin irritation, particularly for individuals with sensitive skin.
from the analysis of Supergoop! Unseen Clear & Invisible Face Sunscreen - SPF 50The case for
It helps to fill in fine lines and smooth the skin's surface, making it feel soft and silky.
from the analysis of Sun Bum Mineral Liquid Face - SPF 30It enhances the product's feel and application, making it smoother and more pleasant to use.
from the analysis of CeraVe Sunscreen Stick SPF 50It helps to create a barrier on the skin, preventing moisture loss and improving texture.
from the analysis of Kiehl's Since 1851 Creme de Corps Body Lotion with Cocoa ButterIt provides a silky texture and can help improve the appearance of fine lines.
from the analysis of Paula's Choice Clinical 1% Retinol TreatmentIt provides a silky texture and helps to prevent moisture loss from the skin.
from the analysis of Sun Bum Signature SPF 30 LotionMore from Scout's analyses
Silicone polymer. Non-biodegradable and persistent in the environment.
from the analysis of CeraVe Hydrating Mineral Sunscreen Face SPF 30Silicone polymer that forms an occlusive barrier, trapping chemicals against the delicate eye area and impeding natural function.
from the analysis of L'Oréal Voluminous Lash Paradise Waterproof MascaraSilicone polymer; occlusive coating that builds up on the hair shaft and requires sulfate shampoos to remove. Environmentally persistent (siloxane microplastic precursor). The reason conventional shampoos need to be sulfate-based.
from the analysis of L'Oréal Paris Elvive Hyaluron + Plump 72H Hydrating ShampooFound in 53 products
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