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be sonatural, Face masks, read from the back

The class a mask mostly is

The humectants, entry by entry

The largest class in the encyclopaedia, and the hardest to avoid meeting: almost every mask in the catalogue prints at least one of these names. Read as a group rather than one at a time, the entries are strikingly uniform - the same few chemical families, the same calm grades, the same position near the top of a label. Which is itself the finding. Most of what is in a sheet mask is water, and something to keep hold of it.

Entries in this class
42of 329
Masks printing one
21598% of 219
Reached by the Regulation
00 capped
Typical place on a label
33%of the way down

Humectants hold water in the formula, binding it into the water phase so it stays in the pack rather than drying out of it.

That is the job this class does in a formula, which is not the same as what it does to skin. The second question is answered entry by entry, against a source we read - the grading rubric sets out how.

The short read

  • No entry in this class is reached by any annex of the Regulation - not a cap, not a labelling duty, not a ban. The EU status column below reads the same on every row, which is not true of most classes on this site.

  • Nearly every entry is graded at the site's calmest level. Where one is not, the reason tends to be that the answer depends on the reader rather than on anything the Regulation has to say - which is why the grade and the EU status sit in separate columns below rather than on one scale.

  • These names sit high on a label, and they are names most readers half-recognise already: glycerin, the glycols, the hyaluronates, sugars and sugar alcohols, panthenol, betaine. Because an ingredient list runs in descending order of weight, a position that high is a statement about how much of the pack they are.

All 42 humectant entries

Widest reach first. The grade and the EU status are separate columns because they are separate questions: a capped Annex V preservative can be the calmest thing on a label, and an unrestricted plant extract can be the entry most worth reading. Every one of these entries has its own page, with the sources behind it.

Well tolerated
No meaningful concern for most people; irritation is possible but rare.
Depends on you
Genuinely relevant for some people, or depends on dose and pH.
What the levels mean ↗
Every humectant entry in the encyclopaedia, with its safety grade, its status under Regulation (EC) 1223/2009, the number of masks that print it, its cited sources and where it typically sits on an ingredient list
EntryEU statusMasksSourcesPlace on a label
Well tolerated: GlycerinGlycerolNo specific restriction203312% down
Well tolerated: Sodium HyaluronateHyaluronic acid (salt form)No specific restriction125552% downusually below ≈1%
Well tolerated: Butylene GlycolBGNo specific restriction108025% down
Well tolerated: PanthenolProvitamin B5No specific restriction76243% down
Well tolerated: PropanediolNo specific restriction60021% down
Well tolerated: Caprylyl GlycolNo specific restriction53667% downusually below ≈1%
Well tolerated: BetaineTrimethylglycineNo specific restriction49124% down
Well tolerated: Dipropylene GlycolDPGNo specific restriction48010% down
Well tolerated: Pentylene GlycolNo specific restriction48142% down
Well tolerated: TrehaloseNo specific restriction29243% down
Depends on you: Propylene GlycolPGNo specific restriction26323% down
Well tolerated: MethylpropanediolNo specific restriction23013% down
Well tolerated: SorbitolSugar alcoholNo specific restriction20015% down
Well tolerated: Beta-GlucanBeta-glucanNo specific restriction18374% downusually below ≈1%
Well tolerated: Hyaluronic AcidHANo specific restriction18387% downusually below ≈1%
Well tolerated: Hydrolyzed Hyaluronic AcidLow-molecular-weight HANo specific restriction18374% downusually below ≈1%
Well tolerated: Hydrolyzed Sodium HyaluronateNo specific restriction18073% downusually below ≈1%
Well tolerated: Glycereth-26No specific restriction16014% down
Well tolerated: GlucoseNo specific restriction13263% down
Well tolerated: Sodium Acetylated HyaluronateAcetylated HANo specific restriction13182% downusually below ≈1%
Well tolerated: AnhydroxylitolNo specific restriction11057% downusually below ≈1%
Well tolerated: Hydroxypropyltrimonium HyaluronateCationic hyaluronateNo specific restriction11275% downusually below ≈1%
Well tolerated: SucroseTable sugarNo specific restriction11233% downusually below ≈1%
Well tolerated: XylitolBirch sugarNo specific restriction11064% downusually below ≈1%
Well tolerated: XylitylglucosideNo specific restriction11054% downusually below ≈1%
Well tolerated: Sodium LactateNo specific restriction10262% downusually below ≈1%
Well tolerated: Sodium PCANaPCANo specific restriction9052% down
Well tolerated: Potassium HyaluronateNo specific restriction8196% downusually below ≈1%
Well tolerated: Polyglutamic AcidPGANo specific restriction7293% downusually below ≈1%
Well tolerated: Saccharide IsomerateNo specific restriction7042% down
Well tolerated: Honey ExtractHoneyNo specific restriction6033% down
Well tolerated: Hydroxyethyl UreaNo specific restriction6021% down
Well tolerated: FructooligosaccharidesFOSNo specific restriction4175% downusually below ≈1%
Well tolerated: Polyglycerin-6No specific restriction4083% downusually below ≈1%
Well tolerated: SerineNo specific restriction4048% down
Well tolerated: UreaCarbamideNo specific restriction4258% down
Well tolerated: InositolVitamin B8No specific restriction2062% downusually below ≈1%
Well tolerated: Methyl Gluceth-20No specific restriction2020% downusually below ≈1%
Well tolerated: PEG-32No specific restriction2049% downusually below ≈1%
Well tolerated: PEG-6No specific restriction2177% downusually below ≈1%
Well tolerated: PEG-20No specific restriction107% down
Well tolerated: Sodium Carboxymethyl Beta-GlucanCM-glucanNo specific restriction1181% downusually below ≈1%

Where this class sits on a pack

An ingredient list is not in a random order. Article 19(1)(g) of Regulation (EC) 1223/2009 requires it to run “in descending order of weight of the ingredients at the time they are added”, and then allows everything under 1% to be listed “in any order” after the rest. So the top of a list is a statement about quantity and the bottom of it is not - which is the ≈1% line the Panel draws on every product page.

Counted across every appearance of this class in the catalogue, and measured as a fraction of each list’s own length so a 4-entry pack and an 81-entry pack count equally, the humectant entries sit a median 33% of the way down a list, and 34% of those appearances fall below the ≈1% line. Where that share is high, position has stopped telling a reader anything about how much is in the pack.

Every class in the encyclopaedia, side by side

The encyclopaedia sorts its entries into 24 classes and 10 have a page: a class needs 15 entries to carry one, below which a landing page is a re-headed filter view. “Other” is excluded whatever its size, because a bucket cannot be a landing page. Every figure here is counted across all 24, so any comparison in the copy above is scoped against a set you can see rather than against the ones that happened to ship.

Entries, masks reached, safety grades, entries reached by Regulation (EC) 1223/2009 and typical place on a label, by ingredient class
ClassEntriesMasksGradesEU-reachedPlace on a label
Humectant4221598%41graded well tolerated1graded depends on you033%
Emollient4112959%40graded well tolerated1graded depends on you136%
Preservative2817881%14graded well tolerated2graded depends on you8graded worth knowing4graded avoid234 banned78%
Botanical2512457%17graded well tolerated7graded depends on you1graded worth knowing050%
Emulsifier2215671%22graded well tolerated051%
Thickener2219790%22graded well tolerated155%
Essential oil212913%18graded depends on you3graded worth knowing879%
Fragrance1913260%11graded depends on you6graded worth knowing2graded avoid192 banned88%
Antioxidant1716073%15graded well tolerated2graded depends on you061%
Active1612155%9graded well tolerated1graded depends on you5graded worth knowing1graded avoid71 banned46%
Exfoliantno page93616%3graded well tolerated6graded depends on you353%
pH adjusterno page914868%9graded well tolerated372%
Othernever a page97333%8graded well tolerated1graded avoid21 banned72%
Clay / mineralno page84621%7graded well tolerated1graded worth knowing717%
Fermentno page72612%7graded well tolerated038%
Film formerno page75927%7graded well tolerated064%
Solventno page621498%3graded well tolerated3graded depends on you06%
Colourantno page53817%4graded well tolerated1graded depends on you396%
Peptide / proteinno page53014%5graded well tolerated067%
Chelatorno page49845%4graded well tolerated077%
Siliconeno page4157%3graded well tolerated1graded worth knowing125%
Surfactantno page252%2graded depends on you026%
UV filterno page142%1graded well tolerated135%
Occlusiveno page000%—0—

An entry has exactly one class, so the entries column sums to 329. The masks column does not sum to 219 and is not meant to - a single list prints entries from a great many classes at once.


Read another class

The other classes with a page

Every entry in this class has a page of its own in the ingredient encyclopaedia, where you can search any name off the back of a pack. To see the masks that print these names, and narrow them by price, format or what you want kept out, filter the full catalogue.

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