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Xanthan Gum

Xanthan gum is a natural gum made when the bacterium Xanthomonas campestris ferments a sugar, usually from corn, soy or wheat. It is the same thickener used in salad dressings.

On a list as
Xanthan Gum
What it does
Thickener and stabiliser
Where it comes from
Made by fermenting sugar with a bacterium
Vegan?
Yes

Why it’s in a formula

A small amount turns water into a smooth gel, keeps ingredients evenly suspended, and gives serums their slip. It is one of the gentlest thickeners there is.

  • Xanthan gum is made by fermentation, not from animals.

Read from each piece’s published ingredient list. 7 pieces.

Lumière

Lumière

Brightening Serum — 30ml

$118

Listed as Xanthan Gum

Vegan, going by its list

La Rosée

La Rosée

Hyaluronic Acid Serum — 30ml

$98

Listed as Xanthan Gum

Vegan, going by its list

Le Peptide

Le Peptide

Matrixyl 3000 Peptide Serum — 30ml

$128

Listed as Xanthan Gum

Cruelty-free; vegan status not confirmed

Le Masque d'Argile

Le Masque d'Argile

Purifying Clay Mask — 118ml

$64

Listed as Xanthan Gum

Vegan, going by its list

Le Teint Nu

Le Teint Nu

Tinted BB Veil — 30ml

$68

Listed as Xanthan Gum

Cruelty-free; vegan status not confirmed

Le Mascara

Le Mascara

Volumizing Mascara

$46

Listed as Xanthan Gum

Not vegan: beeswax

L'Encre

L'Encre

Liquid Eyeliner

$32

Listed as Xanthan Gum

Vegan, going by its list

Is xanthan gum vegan?

Yes, in practice. It is made by bacteria fermenting a plant sugar.

Is xanthan gum safe for skin?

It is one of the most widely used and best-tolerated thickeners in cosmetics and food.

How we know: every ingredient list on this site is the manufacturer’s own, read piece by piece and shade by shade, and the pieces above are worked out from those lists each time the site is built. Ingredient names and functions follow the EU’s CosIng database. This page describes cosmetic ingredients; it isn’t medical advice.