Ingredient on hair labels

Glycereth-26

TheWashDay editorial · Updated · From the EU ingredient register and the makers’ own labels · How we match names

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Glycereth-26 is on 2 of the 177 hair-product labels we compare, from 2 makers. Its uses in the EU ingredient register are humectant and viscosity controlling. One of these labels names it among the first five ingredients.

What it is

In the register’s words: “Poly(oxy-1,2-ethanediyl)], .alpha.,.alpha.',.alpha.''-1,2,3-propanetriyltris[.omega.-hydroxy-.”

EU register name (INCI)
GLYCERETH-26
CAS number
31694-55-0
EC number
-

What the register lists it for

These are the uses the European Commission’s CosIng register lists for Glycereth-26 in any cosmetic, hair roles first. They say why a maker might add it, not what it does in one formula, and they aren’t a safety rating.

Humectant

Holds water in the product and on the surface it touches. Glycerin, honey and aloe are common humectants on curly-hair labels.

Register definition: “Retaining and/or preserving the moisture in a product during use.”

Viscosity controlling

Makes a product thicker or thinner, so a gel holds its shape or a shampoo pours. Gums, cellulose and some salts carry this role.

Register definition: “Increasing or decreasing the viscosity (thickness) of cosmetics.”

Where it sits on each label

US labels list ingredients from most to least, except that those at 1% or less may follow in any order. A name near the top is a large part of the formula. A label doesn’t mark where the 1% point falls, so further down, the order says little about how much is in it.

Every label, product by product (2)

Each line runs from the first name on a label to the last; a dot is where this ingredient sits. Makers change formulas now and then; if the list on your bottle differs, go by your bottle.

Your next step

Other humectant ingredients on these labels

Updated · The name, numbers and uses come from the European Commission’s CosIng entry (CC BY 4.0); we write the uses in US spelling and put the hair ones first. The labels are each maker’s own. The order rule is the FDA’s Cosmetics Labeling Guide. All our sources are on the Sources page.