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Cetyl Dimethicone and Peg-40 Castor Oil are both softens and smooths ingredients. Cetyl Dimethicone is found in 12 products while Peg-40 Castor Oil appears in 3, making Cetyl Dimethicone the more widely used option.
Silicone-based emollient
Plant-derived oil
Moisturising Fluid
Cetyl Dimethicone is categorised as "Softens and smooths" while Peg-40 Castor Oil is categorised as "Softens and smooths". They serve different functions in skincare formulations.
In most cases, these ingredients can be used together. However, always patch test and introduce new ingredients gradually.
Cetyl Dimethicone is found in 12 products, while Peg-40 Castor Oil is found in 3 products in our database.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.