Ingredient
Amodimethicone
What is Amodimethicone?
Amodimethicone is a type of silicone used primarily in hair care products. It is a modification of dimethicone, engineered to provide specific benefits to hair by forming a thin, protective coating around each strand. This silicone is made by reacting dimethicone with amino groups, which helps it adhere better to hair.
In hair products, amodimethicone is prized for its ability to smooth and condition the hair, reduce static, and impart shine without a heavy or greasy feel. As it is not water-soluble, there are concerns about potential buildup on hair over time, which can lead to heaviness or product dependency. However, when used appropriately, it can enhance hair manageability and appearance.
When reading labels, note that while amodimethicone is generally considered safe in cosmetic use, those following a strict 'no silicones' hair regimen might prefer to avoid it.
Commonly found in: Shampoos, Conditioners, Leave-in hair treatments, Anti-frizz serums
What to watch
- May cause buildup on hair which can lead to a heavy, greasy feel if not washed out properly.
Benefits
- Improves hair smoothness and manageability.
- Reduces static in hair, helping to prevent flyaways.
The FDA does not specifically approve or disapprove of cosmetic ingredients like amodimethicone unless they are used as color additives.
While most research supports its use in improving hair condition, there is debate about long-term effects of buildup from non-water-soluble silicones.
Amodimethicone is synthetic and does not use animal-derived ingredients, making it suitable for vegan formulations.
Sources: Safety Assessment of Cyclic and Non-Cyclic Siloxanes
Scout's take
Modified silicone with the same buildup/persistence issues as dimethicone, plus a cationic charge that makes it bind more tenaciously to the hair shaft.
More from Scout's analyses
Modified silicone; builds up on hair shaft, environmentally persistent siloxane microplastic precursor.
from the analysis of CeraVe Anti-Dandruff Hydrating ShampooFound in 4 products
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