skinsafecheck Ingredient Checker

PPG 10 Cetyl Ether

PPG 10 cetyl ether is rated 3 to 4 on our list, a range whose top puts it in the high band, and the number is traced: Fulton 1989 graded it 3.

Like every rating here, it is for the raw ingredient tested alone, and a label does not print how much of it a product holds.

Is PPG 10 cetyl ether comedogenic?

3–4 High

PPG 10 Cetyl Ether is rated 3–4 on the comedogenic scale: our list gives it a range from 3 to 4, and the band follows the 4 at the top. The rabbit-ear studies we have read give it less: Fulton 1989 gave it 3. Our list's 4 is above all of them.

A synthetic compound used to condition the skin and improve the texture of lotions.

Comedogenic rating
3–4 out of 5 (a range on our list)
Band
High: Clear plugging in the rabbit-ear test. The first band to check in a leave-on product.
Where the number comes from
Traced to Fulton 1989. The section on who rated it prints each grade.
Composition
Emulsifier / Alcohols & Derivatives
Also written as
No common variants recorded
Where PPG 10 Cetyl Ether sits on the 0 to 5 comedogenic scale. Our list gives a range, so the whole range is drawn and the band follows the higher end. The papers we checked it against are under Sources we checked this rating against further down this page.

What a 3–4 means in practice

A 4 or 5 is the top of the scale. In the rabbit-ear test, Fulton 1989 counted 4 to 5 as a clear positive: the ingredient plugged the follicles, and did so repeatably. A person's skin reacts less readily than a rabbit's ear, and a product holds far less of the ingredient than the test did, so treat this band as the first thing to check in anything that stays on your skin. It does not prove the ingredient will cause a breakout. A rinse-off product is on the skin for seconds.

Two things change what this number is worth. Ingredients are listed in descending order of concentration, so ppg 10 cetyl ether near the top of a label matters far more than ppg 10 cetyl ether at the bottom. And the rating describes the raw ingredient on its own. A 2006 review in the Journal of the American Academy of Dermatology found that a rating for a single ingredient does not reliably predict how a finished formula behaves on human skin. The full story of the scale is here.

Check a whole ingredient list

Who rated it

Our list is one band above the research. Our list gives ppg 10 cetyl ether 3–4. Fulton 1989 gave it 3. We report the list as it stands and show the papers beside it. Where the list and the research disagree.

Our list gives ppg 10 cetyl ether 3–4. These are the figures the published rabbit-ear studies we have read give it, as printed in each paper's table.

Paper Grade Tested as
Fulton 1989
rabbit ear, 10% in propylene glycol unless stated, two weeks
Grade 3 Tested as PPG 10 cetyl ether

Our list's top figure, 4, is higher than anything in these papers.

A grade is for the raw ingredient tested alone on a rabbit's ear, which reacts more readily than human skin. It says nothing about how much of it a product holds or what the rest of the formula does.

Common questions

Is PPG 10 cetyl ether comedogenic?
PPG 10 Cetyl Ether is rated 3–4 on the comedogenic scale: our list gives it a range from 3 to 4, and the band follows the 4 at the top. The rabbit-ear studies we have read give it less: Fulton 1989 gave it 3. Our list's 4 is above all of them.
Is PPG 10 cetyl ether non comedogenic?
No. PPG 10 Cetyl Ether is rated 3–4 on the comedogenic scale, which is the high band. That is the number on our list; the papers we read grade it lower (see Who rated it).
What is PPG 10 cetyl ether's comedogenic rating?
3–4 out of 5 on our list. It is classed as Emulsifier / Alcohols & Derivatives. The rabbit-ear studies we have read give it less: Fulton 1989 gave it 3. Our list's 4 is above all of them.

Sources we checked this rating against

  1. Kligman AM, Kwong T. “An improved rabbit ear model for assessing comedogenic substances.” British Journal of Dermatology, June 1979;100(6):699–702. (opens in a new tab) The rabbit-ear assay behind published 0 to 5 comedogenicity grades.
  2. Fulton JE Jr. “Comedogenicity and irritancy of commonly used ingredients in skin care products.” Journal of the Society of Cosmetic Chemists, November/December 1989;40(6):321–333. (opens in a new tab) Rabbit ear. Each ingredient at 10 percent in propylene glycol unless stated, applied five days a week for two weeks, and graded 0 to 5 from the width of the follicles, measured by micrometer and under the microscope. The paper counts 0 to 1 as not significant, 2 to 3 as borderline and 4 to 5 as positive. Some grades depended on the supplier of the raw material, and some oils were also tested refined.
  3. Draelos ZD, DiNardo JC. “A re-evaluation of the comedogenicity concept.” Journal of the American Academy of Dermatology, March 2006;54(3):507–512. doi:10.1016/j.jaad.2005.11.1058 (opens in a new tab) Tested finished products on the backs of six people and concluded that “Finished products using comedogenic ingredients are not necessarily comedogenic.”

The rating and description above are the ones this site publishes on its A–Z list. The papers above are the ones we checked it against, and the section on who rated it says whether any of them graded this ingredient.