SALT
Magnesium Sulfate
- salt
Epsom salt, used to adjust the thickness of a liquid formula.
- products in our library
- 28
- of researched products
- 0.7%
- on the label, in our styling texture sprays
- usually #3
- most common in
- Styler: texture spray
- in water
- Water-soluble
At a glance
Four named levels, read from this ingredient’s chemical class, its charge, its solubility, or where it sits on the labels we have. More dots means more of the property named — never “better”.
How much of it is left on hair between washes.
What it takes to get it off the hair again.
The housekeeping this class does.
Where it sits on the labels we have, in the category it appears in most.
| Property | Level | Out of |
|---|---|---|
| Buildup risk | Low | 1 of 5 |
| Rinse-out behaviour | Rinses clean | 5 of 5 |
| Job | Thickens | 2 of 5 |
| Prominence | Leading | 5 of 5 |
What it does for a formula
What Magnesium Sulfate does
The general function first, then how the role changes by product type where we have researched it.
A little salt turns a thin detergent solution into a pourable gel.
Water alone removes it, so it does not accumulate between washes.
Charge
Charge is not recorded for this ingredient.
Solubility
Rinses out with water alone — it does not accumulate 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 ? |
|---|---|---|
Styler: texture spray
11 products
|
leading · #3 | |
Shampoo
3 products
|
secondary · #10 | |
Styler: curl cream
3 products
|
secondary · #13 | |
Styler: mousse
3 products
|
secondary · #20 | |
Leave-in
2 products
|
secondary · #18 | |
Mask / treatment
2 products
|
supporting · #4 | |
Conditioner
1 product
|
supporting · #7 | |
Heat protectant
1 product
|
secondary · #11 | |
Styler: paste
1 product
|
secondary · #9 | |
Styler: volumizer
1 product
|
leading · #3 |
| Product type | Products | Share of category | Median position | Earliest position | Band |
|---|---|---|---|---|---|
| Styler: texture spray | 11 | 19% | 3 | 2 | leading |
| Shampoo | 3 | 0% | 10 | 4 | secondary |
| Styler: curl cream | 3 | 3% | 13 | 10 | secondary |
| Styler: mousse | 3 | 2% | 20 | 17 | secondary |
| Leave-in | 2 | 0% | 18 | 17 | secondary |
| Mask / treatment | 2 | 1% | 4 | 4 | supporting |
| Conditioner | 1 | 0% | 7 | 7 | supporting |
| Heat protectant | 1 | 1% | 11 | 11 | secondary |
| Styler: paste | 1 | 1% | 9 | 9 | secondary |
| Styler: volumizer | 1 | 2% | 3 | 3 | leading |
No product-type differences have been researched yet — the reading below is computed 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 | 15 |
| 4-8 | Supporting | 6 |
| 9-15 | Secondary | 5 |
| 16-25 | Lower | 8 |
| 26+ | Trace | 1 |
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 this ingredient is evidence of, what it is not evidence of, and what our own method can and cannot tell you.
- a thicker cleanser
- a rinse-clean feel
- an exact safety score — we do not publish one, for any ingredient
- how a finished product performs by itself — that is the whole formula, not one line of it
- the exact percentage in a bottle — label position never converts into a number
- a primary salt near the top of the ingredient list in our styling texture sprays
- it was on the label of every product we counted — we read printed ingredient lists, not marketing copy
- 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.
Commonly paired with
Ingredients that appear alongside this one most often in our library. Near-universal ingredients are excluded — they pair with everything and tell you nothing.
- Polysorbate 20 · 10
- PVP · 8
- Benzyl Alcohol · 8
- Sodium Chloride · 7
- PPG-5-Ceteth-20 · 6
- Citrus Aurantium Peel Oil · 6
- Benzyl Benzoate · 6
- Caprylyl Glycol · 6
- Cetrimonium Chloride · 6
- Trideceth-12 · 5
The number beside a name is how many products in our library list both.
These ingredients tend to appear together to clean and build foam, give the formula body and hold, and carry the formula and let it dry.
Found in these products
The most prominent placements first. The badge is the position on that product’s own ingredient list.
Aveda · Styler
Texture Tonic Texturizing Spray
#2 on the label · $7.62/oz
Blind Barber · Styler
40 Proof Sea Salt Textured Hold Spray
#2 on the label · $4.00/oz
Bumble and bumble · Styler
Texturizing Surf Spray - 4.2 oz
#2 on the label · $8.33/oz
L'ange · Styler
Salt + Sea Texturizing Spray
#2 on the label · $5.00/oz
Paul Mitchell · Styler
Awapuhi Wild Ginger Texturizing Sea Spray
#2 on the label · $5.39/oz
Sun Bum · Styler
Texturizing Sea Spray
#2 on the label · $2.83/oz
Bed Head · Styler
Salty Not Sorry Texturizing Salt Spray For Natural Undone Hairstyles
#3 on the label · $3.40/oz
Bed Head · Styler
Texturising Salt Spray
#3 on the label · $2.54/oz
Bondi Boost · Styler
Thickening Therapy Spray
#3 on the label · $7.80/oz
Bumble and bumble · Styler
Surf Infusion Sea Salt Spray
#3 on the label · $10.59/oz
Kenra Professional · Styler
Kenra Platinum Texturizing Mist 6
#3 on the label · $5.00/oz
Kenra Professional · Styler
Platinum Texturizing Mist 6
#3 on the label · $5.00/oz
See all 28 products in the library that list Magnesium Sulfate
Identity
What this entry is, and what our references call it.
Magnesium Sulfate
- CAS 7487-88-9
- PubChem 24083
- magnesium sulfate
For your hair?
Whether Magnesium Sulfate matters for your hair depends on your hair.
28 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 is read from the ingredient lists in our library and from published references — the consultation is what turns it into a plan.
References
Sourced Backed by a manufacturer or regulatory source.
This ingredient
- Manufacturer or regulatory PubChem — Compound identity: CID 24083, CAS 7487-88-9, MgO4S · accessed 2026-08-28
How this page was made
- Every number above is counted from the ingredient lists in our own product library — 28 of 3928 researched products list this ingredient. Nothing on this page is written per ingredient.
- The dots are named levels read from an ingredient’s chemical class, charge, solubility, or where it sits on the labels we have — never a score.
- 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; where none is, the row is simply absent rather than filled in.
- This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
- Entry last updated 2026-08-28. Product-page methodology: the product library.