CLEANSER
Sodium Coceth Sulfate
- cleanser
An ethoxylated coconut sulfate. It is a sulfate detergent: high-foaming and thorough.
- products in our library
- 4
- of researched products
- 0.1%
- on the label, in our shampoos
- usually #2
- most common in
- Shampoo
- in water
- Water-soluble
At a glance
Four things worth knowing about how this ingredient behaves on hair.
How much of it is left on hair between washes.
What it takes to get it off the hair again.
How much oil it strips, as a class.
The foam the class is known for, not a measured volume.
| Property | Level | Out of |
|---|---|---|
| Buildup risk | Low | 1 of 5 |
| Rinse-out behaviour | Rinses clean | 5 of 5 |
| Cleansing strength | Strong | 5 of 5 |
| Lather | Dense | 5 of 5 |
What it does for a formula
What Sodium Coceth Sulfate does
The general function first, then how the role changes by product type where we have researched it.
A sulfate: quick to lift oil and product, and the class "sulfate-free" labels leave out.
A high-foaming detergent class that removes oil and product quickly.
Foam is a feel, not a measure of how clean hair gets.
Water alone removes it, so it does not accumulate between washes.
Charge
Negatively charged, like the hair surface itself, so hair pushes it away instead of holding on to it. It rinses off easily, and most detergents carry this charge.
Solubility
Rinses out with water alone, so it does not build up on hair between washes.
Where it appears
Where it appears
One row per product category in our library: how many products list it, what share of that category that is, and where it typically sits on the label.
| Product type | How common | Typical position on label ? |
|---|---|---|
Shampoo
4 products
|
leading · #2 |
| Product type | Products | Share of category | Median position | Earliest position | Band |
|---|---|---|---|---|---|
| Shampoo | 4 | 0% | 2 | 2 | leading |
We have not researched differences by product type yet. The reading below comes from where it sits on the labels in our library.
Position footprint
Every listing in our library, by position on the label.
| Positions | Zone | Listings |
|---|---|---|
| 1-3 | Leading | 3 |
| 4-8 | Supporting | 1 |
| 9-15 | Secondary | 0 |
| 16-25 | Lower | 0 |
| 26+ | Trace | 0 |
How to read this
US labelling rules put ingredients above 1% in descending order of amount; below 1% they may be listed in any order.
So position tells you about relative amount only above that line, and we never convert a position into a percentage.
Why it matters to shoppers
What seeing this ingredient tells you, what it does not, and the limits of our own method.
- a deep clean
- a dense, fast lather
- a thorough wash that lifts product and oil
- a product that actually cleans
- an exact safety score (we do not publish one for any ingredient)
- how a finished product performs, which depends on the whole formula, not one line of it
- the exact percentage in a bottle, because label position never converts into a number
- a primary sulfate cleanser near the top of the ingredient list in our shampoos
- it was on the printed ingredient list of every product we counted (we read labels, not marketing copy)
- that a product is drying (its position and the rest of the formula decide that)
- that a product is right or wrong for you
We do not publish safety scores or hazard grades. Where a regulator has published a restriction or a use condition, we state it and cite it; otherwise we describe what the ingredient does and stop.
Why some people avoid it
The primary detergent. It is what lifts oil and product off hair and produces the lather most people read as a proper wash.
Sulfates are efficient cleansers, and on dry, coarse, curly or colour-treated hair that efficiency can strip more oil than the hair can spare. This is a question of performance and preference, not toxicity. The frequent claim that sulfates are carcinogenic has no support.
Where regulators stand: Permitted everywhere and unrestricted. Sulfate-free is a formulation choice, and the curly-method communities that popularised it were making an argument about dryness.
A formulation preference, not a regulatory finding
Browse products in our library without Sodium Coceth Sulfate
Commonly paired with
The ingredients that most often appear alongside this one in our library. We leave out the near-universal ones, because they pair with everything and tell you nothing.
- Guar Hydroxypropyltrimonium Chloride · 4
- Sodium Olivoyl Glutamate · 3
- Vitis Vinifera (Grape) Skin Extract · 3
- Triticum Vulgare (Wheat) Bran Extract · 3
- Disodium Cocoyl Glutamate · 3
- Disodium Cocoamphodiacetate · 3
- Citrus Limon (Lemon) Fruit Extract · 3
- Pyrus Malus (Apple) Fruit Extract · 3
- Tartaric Acid · 3
- Sodium Gluconate · 3
The number beside a name is how many products in our library list both.
These ingredients tend to appear together to improve feel after rinsing, clean and build foam, and appear on the label as plant-derived ingredients.
Found in these products
The most prominent placements first. The badge is the position on that product’s own ingredient list.
Identity
What this entry is, and what our references call it.
No public-domain structure depiction is available for this entry.
Sodium Coceth Sulfate
- sulfate cleanser
- sodium coceth sulfate
For your hair?
Whether Sodium Coceth Sulfate matters for your hair depends on your hair.
4 products in our library list itWhat this ingredient does, and where it sits on the labels we have researched.
A verdict on any product that contains it, and never a safety grade.
We do not physically test your hair. Everything above comes from the ingredient lists in our library and from published references. The consultation is what turns it into a plan.
References
Seed entry, sourcing in progress Written from our reference work; primary sourcing is still being attached.
No published source is attached to this entry yet.
How this page was made
- Every number above is counted from the ingredient lists in our own product library: 4 of 6816 researched products list this ingredient. Nothing on this page is written per ingredient.
- The dots are levels, not scores. Each one comes from what kind of ingredient it is (its chemical class, charge and solubility) or from where it sits on the labels we have.
- US labelling rules put ingredients above 1% in descending order of amount; below 1% they may be listed in any order. Position tells you about relative amount only above that line, and we never convert a position into a percentage.
- The prominence bands (leading, supporting, secondary) are the same ones the product pages use to read a single label, applied here to the median position across a category.
- We do not publish safety scores or hazard grades. Where a regulator has published a restriction or a use condition, we state it and cite it; otherwise we describe what the ingredient does and stop.
- Identifiers and references appear only when a published source is attached to this entry. Without one, we leave the row out rather than fill it in.
- This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
- Entry last updated 2026-09-22. Product-page methodology: the product library.
