Last reviewed May 2026 · 1 min read
Is Sodium Lauryl Sulfate (SLS) vegan?
Also known as: SLS, Sodium dodecyl sulfate
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Source can be plant or animal.
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It depends — It is synthesized from lauryl alcohol.
01 · The basics
What is Sodium Lauryl Sulfate (SLS)?
A powerful surfactant and foaming agent that creates the thick lather in many personal care and cleaning products.
02 · The source
Where it comes from
It is synthesized from lauryl alcohol. The lauryl alcohol usually comes from coconut or palm oil (vegan), but it can occasionally be derived from animal fats.
03 · Alternatives
Best vegan alternatives
Sodium Coco Sulfate (SCS)
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Frequently asked
FAQ
How can I be sure SLS is vegan?
Unless a product is certified vegan or explicitly states the SLS is coconut/plant-derived, there is a small chance it could be animal-derived.
Why do some people avoid SLS?
Beyond vegan concerns, SLS is a known skin irritant that can strip natural oils, leading many to seek gentler, sulfate-free alternatives.
Commonly found in
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