10 comedogenic ingredients hiding in your makeup

The 10 most common pore-cloggers in TruHue's database. One of them is table salt.

You've probably scanned a few ingredient lists and given up somewhere around "Polyglyceryl-3 Diisostearate." That's understandable. INCI names are designed for chemists, not shoppers.

But these ingredients matter. TruHue's 856-ingredient comedogenic database flags compounds by their clinical comedogenic rating — a 0-to-5 scale based on how likely they are to clog pores. And when you run the math across 663 products, patterns emerge fast.

Here are the 10 comedogenic ingredients that show up most often. Each one includes what it does, why brands use it, its comedogenic rating, and how many products in the database contain it.

The top 10

#	Ingredient	Rating	Products
1	Tocopheryl Acetate	3/5	236
2	Tocopherol	2/5	223
3	Sodium Chloride	5/5	169
4	Hexylene Glycol	2/5	114
5	Octyl Palmitate	4/5	79
6	Hexyl Laurate	4/5	52
7	Sorbitan Sesquioleate	3/5	48
8	Polyglyceryl-3 Diisostearate	4/5	47
9	Laureth-7	3/5	44
10	Sorbitan Isostearate	3/5	35

What each one actually does

1. Tocopheryl Acetate (rating 3) — 236 products. A synthetic form of Vitamin E. Brands add it for two reasons: it sounds good on the label ("contains Vitamin E"), and it stabilizes the formula so it doesn't oxidize on the shelf. The problem is that it's a moderately comedogenic compound. It appears in more products than any other flagged ingredient in the database.

2. Tocopherol (rating 2) — 223 products. Natural Vitamin E. Lower risk than its synthetic cousin, but still flagged at a 2. It shows up almost as often because brands use it as an antioxidant preservative. If you see both Tocopherol and Tocopheryl Acetate in the same product, that's a double dose of the same family.

3. Sodium Chloride (rating 5) — 169 products. Table salt. This is the one that surprises everyone. Sodium Chloride rates a 5 — the highest possible score on the comedogenic scale. Brands use it as a thickener and viscosity adjuster in liquid formulas. You'll find it in foundations from Fenty, NARS, and dozens of others. Fenty Pro Filt'r Soft Matte Foundation lists it. So does NARS Soft Matte Foundation.

4. Hexylene Glycol (rating 2) — 114 products. A solvent and penetration enhancer. It helps other ingredients absorb into skin faster — which also means it helps comedogenic ingredients penetrate deeper. Low individual risk, but it amplifies whatever else is in the formula.

5. Octyl Palmitate (rating 4) — 79 products. An emollient ester. This is the ingredient that makes creams feel silky and spreadable. At a rating of 4, it's one of the higher-risk compounds on this list. If you see it in the first five ingredients, the product has a serious comedogenic load at its base.

6. Hexyl Laurate (rating 4) — 52 products. A skin-conditioning ester similar to Octyl Palmitate. Same function — slip and spread. Same risk level. You'll find it in cream blushes and liquid foundations, where that smooth texture is the selling point.

7. Sorbitan Sesquioleate (rating 3) — 48 products. An emulsifier that keeps oil and water mixed. Without it, cream products would separate in the tube. Moderate comedogenic risk, and nearly always paired with other flagged emulsifiers.

8. Polyglyceryl-3 Diisostearate (rating 4) — 47 products. Another emulsifier, this one with a higher rating. It shows up in longwear foundations and full-coverage concealers — products designed to stay put for 12+ hours. Estee Lauder Double Wear lists it at position #7.

9. Laureth-7 (rating 3) — 44 products. A surfactant that helps ingredients dissolve evenly. Common in liquid formulas. Moderate risk, but it tends to appear alongside other flagged compounds rather than alone.

10. Sorbitan Isostearate (rating 3) — 35 products. An emulsifier in the same family as Sorbitan Sesquioleate. You'll find it in Glossier Stretch Foundation alongside Plankton Extract (rating 4). Cream formulas lean on this family of emulsifiers heavily.

The pattern

Look at the list again. Three categories dominate: Vitamin E derivatives (added for marketing and shelf life), emollient esters (added for texture), and emulsifiers (added to hold the formula together). These aren't exotic chemicals — they're the structural ingredients that make modern makeup feel and perform the way you expect.

That's why 93% of products get flagged. The problem isn't unusual ingredients. The problem is that the standard ingredients used across the industry carry comedogenic risk.

What to do with this information

You don't need to memorize this list. Drop any product into TruHue and the acne audit flags every comedogenic ingredient automatically — with its rating, its position on the label, and what it means for your skin. Three seconds, one scan.

But if you want one shortcut for reading labels yourself: check positions 1 through 5 on the INCI list. If any of the top-10 ingredients above appear there, the product's comedogenic load is structural — it's baked into the base, not a trace additive.

Frequently Asked Questions

What does a comedogenic rating of 5 mean?

The comedogenic scale runs 0 to 5. A rating of 5 means the ingredient has the highest likelihood of clogging pores in clinical testing. Sodium Chloride (table salt) rates a 5 — and it appears in 169 makeup products in TruHue's database. Ratings of 4-5 are considered high-risk. Ratings of 2-3 are moderate. Zero means non-comedogenic.

Is Vitamin E bad for acne-prone skin?

It depends on the form. Tocopheryl Acetate (synthetic Vitamin E) rates a 3 on the comedogenic scale and appears in 236 products. Tocopherol (natural Vitamin E) rates a 2 — lower risk but still flagged. Neither is guaranteed to cause breakouts, but if you're acne-prone, they're worth watching, especially near the top of the ingredient list.

How do I check if my makeup contains these ingredients?

Drop any product into TruHue's acne audit. The app scans the full ingredient list against an 856-ingredient comedogenic database and flags every match, including its position on the label and its comedogenic rating. You'll see which specific ingredients triggered the flag in about three seconds.