Ingredient glossary
Every ingredient, decoded.
The back of the bottle is where the truth is, and it reads like a foreign language. So here is the whole cabinet in plain words: what each ingredient actually does, who it suits, and who should quietly skip it. No hype, no chemistry degree required.
Two names looking suspiciously alike? Start with the terms people mix up most. Or read what the words on the front of the bottle actually promise: hypoallergenic and non-comedogenic.
Wondering if two of them clash? Try the conflict checker →
Deciding between two? Use the free ingredient comparison tool →
Skin gone tight, dull and stingy? See what is likely causing it →
Wondering if any of it actually gets into skin? See the weights →
See all of them on one chart, and find where yours lands →
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A
- Acetyl Tetrapeptide-5Promising, not proven
- Acetylated Hyaluronic AcidMore hype than results
- Acryloyl Taurate CopolymerMinor player
- AdapaleneSolid and proven
- AdenosineSolid and proven
- AlanineMinor player
- Alkyl Acrylate CrosspolymerMinor player
- AllantoinSolid and proven
- AloeDecent support
- Alpha ArbutinSolid and proven
- Alpha Lipoic AcidPromising, not proven
- Ammonium lactateSolid and proven
- AmodimethiconeDecent support
- Argan OilSolid and proven
- ArginineMinor player
- ArgirelinePromising, not proven
- Ascorbyl GlucosideSolid and proven
- AsiaticosideScent, not skincare
- Aspartic AcidMinor player
- AstaxanthinSolid and proven
- AvobenzoneSun protection
- Avocado OilSolid and proven
- Azelaic AcidSolid and proven
B
- BakuchiolSolid and proven
- Behentrimonium MethosulfateMinor player
- Behenyl AlcoholSolid and proven
- BentonitePromising, not proven
- Benzoyl PeroxideWorth paying for
- Benzyl AlcoholScent, not skincare
- Beta-GlucanSolid and proven
- BetaineSolid and proven
- Betaine SalicylatePromising, not proven
- BHTQuietly necessary
- Bifida Ferment LysatePromising, not proven
- BisabololSolid and proven
- BromelainPromising, not proven
- Buriti OilPromising, not proven
- Butylene GlycolSolid and proven
C
- C12-15 Alkyl BenzoateSolid and proven
- CaffeineDecent support
- Caprylic/Capric TriglycerideSolid and proven
- Capryloyl Salicylic AcidSolid and proven
- Caprylyl GlycolQuietly necessary
- Caprylyl MethiconeMinor player
- CarbomerMinor player
- CarnosineMinor player
- Castor OilPromising, not proven
- Centella Asiatica ExtractSolid and proven
- Ceramide 1Worth paying for
- Ceramide 3Worth paying for
- Ceramide 6-IIWorth paying for
- Ceteareth-20Minor player
- Cetearyl AlcoholSolid and proven
- Cetearyl IsononanoateSolid and proven
- Cetearyl OlivateMinor player
- Cetyl AlcoholSolid and proven
- Cetyl EthylhexanoateSolid and proven
- Charcoal PowderMore hype than results
- ChlorphenesinQuietly necessary
- CholesterolWorth paying for
- Citric AcidDecent support
- Cloudberry Seed OilMinor player
- Cocamidopropyl BetaineDecent support
- Coco-Caprylate/CaprateSolid and proven
- Coco-GlucosideDecent support
- Coconut OilSolid and proven
- Coenzyme Q10Solid and proven
- Colloidal OatmealWorth paying for
- ColostrumDecent support
- Crosslinked sodium HAWorth paying for
- CyclodextrinMinor player
- CyclohexasiloxaneSolid and proven
- CyclopentasiloxaneSolid and proven
- CysteamineWorth paying for
D
- Decyl GlucosideDecent support
- Dehydroacetic AcidQuietly necessary
- Denatured AlcoholJust a base
- DimethiconeWorth paying for
- Dimethicone CrosspolymerMinor player
- DimethiconolSolid and proven
- Dimethyl IsosorbideJust a base
- Dipotassium GlycyrrhizateSolid and proven
- Dipotassium PhosphateMinor player
- Dipropylene GlycolJust a base
- Disodium EDTAMinor player
- DMDM HydantoinQuietly necessary
E
- EctoinSolid and proven
- EGCG glucosideDecent support
- Epidermal Growth FactorSolid and proven
- ErgothioneinePromising, not proven
- ErythritolDecent support
- EthoxydiglycolJust a base
- Ethyl Ascorbic AcidSolid and proven
- Ethylhexyl PalmitatePromising, not proven
- Ethylhexyl TriazoneSun protection
- EthylhexylglycerinQuietly necessary
- Evening Primrose OilSolid and proven
- ExosomesDecent support
F
G
- Galactomyces Ferment FiltrateDecent support
- GHK-CuSolid and proven
- Ginseng Root ExtractDecent support
- GluconolactoneSolid and proven
- GlucoseMinor player
- GlutathioneDecent support
- Glycereth-26Solid and proven
- GlycerinWorth paying for
- Glyceryl StearateMinor player
- GlycineMinor player
- Glycolic acidWorth paying for
- Grapeseed OilSolid and proven
- Green Tea ExtractSolid and proven
H
- Heartleaf ExtractPromising, not proven
- Heartleaf WaterMore hype than results
- Hemp Seed OilSolid and proven
- Hexylene GlycolPromising, not proven
- HistidineMinor player
- HomosalateSun protection
- HoneyDecent support
- Honeysuckle Flower ExtractQuietly necessary
- Hyaluronic acidWorth paying for
- Hydrogenated PolyisobuteneSolid and proven
- Hydrolyzed CollagenDecent support
- Hydrolyzed hyaluronic acidSolid and proven
- HydroquinoneWorth paying for
- Hydroxyethyl UreaSolid and proven
- HydroxyethylcelluloseMinor player
- Hydroxymethoxyphenyl DecanoneMinor player
- Hydroxypinacolone RetinoatePromising, not proven
- Hypochlorous AcidDecent support
I
J
K
L
- Lactic acidSolid and proven
- Lactobionic AcidSolid and proven
- Lactococcus Ferment LysatePromising, not proven
- LanolinSolid and proven
- Lavender OilScent, not skincare
- LecithinMinor player
- LeuphasylPromising, not proven
- Licochalcone ADecent support
- LimoneneScent, not skincare
- LinaloolScent, not skincare
- Linoleic AcidWorth paying for
M
- Macadamia OilSolid and proven
- MadecassosideScent, not skincare
- Magnesium Ascorbyl PhosphateSolid and proven
- Malic AcidDecent support
- MaltitolDecent support
- MaltodextrinMinor player
- Mandelic AcidSolid and proven
- Marula OilDecent support
- Matrixyl Synthe'6Promising, not proven
- Meadowfoam Seed OilSolid and proven
- MelatoninDecent support
- MentholMore hype than results
- MethylisothiazolinoneQuietly necessary
- MethylparabenQuietly necessary
- MethylpropanediolQuietly necessary
- Mexoryl SXSun protection
- Mexoryl XLSun protection
- Mineral OilWorth paying for
- Mugwort ExtractPromising, not proven
- Myristyl MyristateDecent support
N
O
P
- Palmitoyl Pentapeptide-4Solid and proven
- Palmitoyl Tripeptide-1Decent support
- PantolactoneMinor player
- PapainPromising, not proven
- PDRNSolid and proven
- Pentylene GlycolDecent support
- Peppermint OilMore hype than results
- PetrolatumWorth paying for
- PhenoxyethanolQuietly necessary
- Phenyl TrimethiconeSolid and proven
- PhenylalanineMinor player
- Phytic AcidPromising, not proven
- PhytosphingosineSolid and proven
- Polyglutamic AcidPromising, not proven
- Polyglyceryl-10 LaurateMinor player
- Polysorbate 20Minor player
- Polysorbate 60Minor player
- Potassium PhosphateMinor player
- Potassium SorbateQuietly necessary
- Pro-vitamin B5Worth paying for
- ProlineMinor player
- PropanediolSolid and proven
- Propolis ExtractPromising, not proven
- Propylene GlycolQuietly necessary
- PropylparabenQuietly necessary
- Purslane ExtractPromising, not proven
R
- RelistaseMinor player
- ResveratrolSolid and proven
- RetinalSolid and proven
- RetinolWorth paying for
- Retinyl AcetatePromising, not proven
- Retinyl PalmitateDecent support
- Retinyl PropionatePromising, not proven
- Retinyl RetinoatePromising, not proven
- Rice ExtractDecent support
- RiginPromising, not proven
- Rose Flower WaterPromising, not proven
- Rosehip OilSolid and proven
- Rosemary Leaf ExtractMinor player
S
- Safflower Seed OilSolid and proven
- Salicylic acid (BHA)Solid and proven
- Salicyloyl PhytosphingosineMinor player
- Sea Buckthorn OilPromising, not proven
- SerineMinor player
- Shea ButterWorth paying for
- SilicaMinor player
- Snail Secretion FiltrateSolid and proven
- Sodium Ascorbyl PhosphateWorth paying for
- Sodium BenzoateQuietly necessary
- Sodium ChlorideMinor player
- Sodium CitrateMinor player
- Sodium Cocoyl IsethionateSolid and proven
- Sodium HydroxideMinor player
- Sodium LactateSolid and proven
- Sodium Laureth SulfateSolid and proven
- Sodium Lauroyl LactylateMinor player
- Sodium Lauryl SulfateWorth paying for
- Sodium PCAWorth paying for
- Sodium Stearoyl GlutamateMinor player
- Sorbitan IsostearateMinor player
- Sorbitan OlivateMinor player
- SorbitolSolid and proven
- SpermidineMinor player
- Sponge spiculesPromising, not proven
- SqualaneWorth paying for
- Stearyl AlcoholSolid and proven
- Succinic AcidPromising, not proven
- SulfurSolid and proven
- Sunflower Seed OilWorth paying for
- Sweet Almond OilSolid and proven
- Syn-AkePromising, not proven
T
- TallowPromising, not proven
- Tartaric AcidDecent support
- Tasmanian PepperberryPromising, not proven
- TazaroteneWorth paying for
- Tea Tree OilDecent support
- TetrahydrocurcuminSolid and proven
- Tetrasodium EDTAMinor player
- THD AscorbateSolid and proven
- ThiamidolWorth paying for
- ThreonineMinor player
- Tinosorb MSun protection
- Tinosorb SSun protection
- Titanium DioxideSun protection
- Tranexamic AcidSolid and proven
- TrehalosePromising, not proven
- Tremella Fuciformis ExtractPromising, not proven
- TretinoinWorth paying for
- TriethanolamineMinor player
- Trisodium EDDSMinor player
- TromethamineMinor player