Ingredients Starting With Q
28 skincare ingredients in the glossary begin with Q. Learn what each one does, how it works, and which products contain it.
Q
Quartz
QUARTZA mineral abrasive used in physical exfoliating formulations
Quassia Amara Wood Extract
QUASSIA AMARA WOOD EXTRACTA bitter wood extract traditionally used to support skin conditioning and natural preservation
Quaternary Ammonium Compounds
A wide range of ingredients, called "quats" for short | Share a unique molecular structure that makes them strongly attracted to hair
Quaternium Ammonium Compounds
A wide range of ingredients, called “quats” for short | Share a unique molecular structure that makes them strongly attracted to hair
Quaternium-15
QUATERNIUM-15A synthetic preservative that prevents microbial growth in skincare formulations
Quaternium-18 Bentonite
QUATERNIUM-18 BENTONITEAn organoclay that helps stabilise formulations and support skin barrier resilience
Quaternium-22
QUATERNIUM-22A conditioning agent that helps improve texture and smoothness in haircare formulations
Quaternium-33
QUATERNIUM-33A conditioning agent primarily used in hair and scalp formulations
Quaternium-73
QUATERNIUM-73A conditioning agent that helps maintain smoothness and reduce static in hair-containing formulations
Quaternium-80
QUATERNIUM-80A conditioning agent primarily used in haircare formulations
Quaternium-87
QUATERNIUM-87A synthetic conditioning agent primarily used in hair and cleansing products
Quaternium-90 Bentonite
QUATERNIUM-90 BENTONITEA clay-derived viscosity agent with potential skin-conditioning properties
Quaternium-91
QUATERNIUM-91A conditioning agent primarily used in hair care formulations
Quaternium-95
QUATERNIUM-95A conditioning agent with potential UV-protective properties, primarily used in hair and scalp formulations
Quercetin
BioflavonoidQuercetin is a bioflavinoid ingredient from plants
Quercetin Caprylate
QUERCETIN CAPRYLATEA stabilised form of quercetin that works as an antioxidant to help protect skin from environmental stress
Quercetin Dimethyl Ether Glucoside
QUERCETIN DIMETHYL ETHER GLUCOSIDEA plant-derived flavonoid with potential soothing and skin-conditioning properties
Quercus Acutissima Fruit Extract
QUERCUS ACUTISSIMA FRUIT EXTRACTPlant-derived astringent that helps refine skin texture and minimise pore appearance
Quercus Alba Bark Extract
QUERCUS ALBA BARK EXTRACTA plant extract with astringent and purifying properties from North American white oak bark
Quercus Mongolica Leaf Extract
QUERCUS MONGOLICA LEAF EXTRACTA plant extract with traditional use for skin inflammation and emerging evidence for acne and photoaging
Quercus Petraea Bark … Leaf Extract
QUERCUS PETRAEA BARK/WOOD/LEAF EXTRACTAn oak extract that conditions and supports skin's natural resilience
Quercus Robur (Oak) Root Extract
Plant-derived ingredient taken from the English oak tree | Can help protect skin from external aggressors
Quercus Robur Bark Extract
QUERCUS ROBUR BARK EXTRACTA tannin-rich plant extract with astringent and traditionally purifying properties
Quillaja Saponaria Bark
QUILLAJA SAPONARIA BARKA plant-derived cleanser and emulsifier with natural foaming properties
Quillaja Saponaria Bark Extract
QUILLAJA SAPONARIA BARK EXTRACTA natural surfactant derived from tree bark with cleansing and conditioning properties
Quillaja Saponaria Root Extract
QUILLAJA SAPONARIA ROOT EXTRACTPlant-derived extract that conditions skin and helps formulations perform effectively
Quillaja Saponaria Wood Extract
QUILLAJA SAPONARIA WOOD EXTRACTA plant-derived skin conditioner that helps maintain skin hydration and softness
Quinoa Oil
Derived from quinoa grain | Has emollient properties for skin
From the Clinic
Not sure what your skin actually needs?
Two minutes, a few questions, and we’ll point you at what matters — no guesswork.
Take the skin quizLooking for a Different Ingredient?
Browse the full glossary or explore ingredients by category.
View Full Glossary