Cosmetic Glossary

Welcome to our comprehensive Cosmetic Glossary, your ultimate guide to understanding exactly what goes into your skincare and beauty products. Navigating complex INCI lists can be overwhelming, which is why we have broken down each ingredient to clearly explain its primary function, skin benefits, and role in your daily routine. Whether you are researching a soothing botanical extract or decoding a potent scientific active, our dictionary empowers you to make informed, safe choices and build a skincare regimen tailored to your unique needs.
Hydroxypropyltrimonium Honey
Honeyquat Conditioning Agent (Hydroxypropyltrimonium Honey) Hydroxypropyltrimonium Honey is a cationic (quaternized) honey derivative designed to combine honey’s moisture-attracting benefits with...
Hydroxystearic Acid
Hydroxystearic Acid (Hydroxystearic Acid) Hydroxystearic Acid is a fatty-acid derivative used in cosmetic formulations primarily as a structuring agent, gellant, and rheology modifier for oil-based...
Indigofera Tinctoria Leaf Powder
Indigofera Tinctoria Leaf Powder (Indigo Leaf Powder) Indigofera Tinctoria Leaf Powder is a botanical colorant used primarily in natural hair-coloring systems, where it helps create cooler brown to...
Iron Oxide Black CI 77499
Iron Oxide Black CI 77499 (Black Iron Oxide) Iron Oxide Black (CI 77499) is an inorganic mineral pigment widely used in cosmetic formulations to provide deep black-to-charcoal coloration and to...
Iron Oxide Red CI 77491
Iron Oxide Red CI 77491 (Red Iron Oxide) Iron Oxide Red (CI 77491) is an inorganic mineral pigment widely used in cosmetic formulations to provide stable red-to-russet coloration and to build a broad...
Iron Oxide Yellow CI 77492
Iron Oxide Yellow CI 77492 (Yellow Iron Oxide) Iron Oxide Yellow (CI 77492) is an inorganic mineral pigment widely used in cosmetic formulations to provide stable yellow-to-golden coloration and to...
Isoamyl Laurate
Isoamyl Laurate (Isoamyl Laurate) Isoamyl Laurate is a naturally inspired emollient ester commonly used in cosmetic formulations to deliver a light, dry-touch feel with excellent spreadability and a...
Isocetyl Alcohol
Emollient Fatty Alcohol (Isocetyl Alcohol) Isocetyl Alcohol is a branched-chain fatty alcohol used in cosmetic formulations as an emollient, texture enhancer, and solvent for oil-phase ingredients....
Isoeugenol
Isoeugenol (isoeugenol) Aromatic ingredient used in cosmetics as a fragrance component, known for its warm, floral-spicy and slightly woody scent with notes that may recall carnation, clove or...
Isoleucine
Isoleucine (Isoleucine) An amino acid used in cosmetic formulations as a skin and hair conditioning ingredient, valued for its contribution to hydration, softness and a more revitalized appearance....
Jasminum Sambac Flower Extract
Jasminum Sambac Flower Extract (Jasmine Sambac Flower Extract) Jasminum Sambac Flower Extract is a botanical extract derived from the flowers of Jasminum sambac (jasmine sambac), valued in cosmetic...
Jojoba Esters
Jojoba Esters (Jojoba Esters) Cosmetic esters derived from jojoba oil or jojoba wax, valued for their emollient, texture-enhancing and protective benefits for both skin and hair. Due to their...
Juniperus Communis Fruit Oil
Juniperus Communis Fruit Oil (Juniper Berry Oil) Juniperus Communis Fruit Oil is an aromatic essential oil distilled from the fruits (berries) of Juniperus communis (juniper), valued in cosmetic...
Juniperus Virginiana Wood Oil
Juniperus Virginiana Wood Oil (Virginia Cedarwood Oil) Juniperus Virginiana Wood Oil is an aromatic essential oil distilled from the wood of Juniperus virginiana (Virginia cedarwood), valued in...
Kaolinite
Kaolinite (Kaolinite) Kaolinite is a fine, naturally occurring clay mineral widely used in cosmetics for its absorbent, purifying and soothing properties. Known for its ability to draw out...
Kojic Acid
Brightening Fermentation-Derived Acid (Kojic Acid) Kojic Acid is a skin-brightening active originally identified as a natural by-product of certain fermentation processes, widely used in cosmetic...
Lactic Acid
Lactic Acid (Lactic Acid) Lactic Acid is a naturally occurring alpha hydroxy acid (AHA) widely used in cosmetic formulations for gentle exfoliation, hydration support, and improved skin radiance. It...
Lactobacillus Ferment
Lactobacillus Ferment (lactobacillus ferment) A biotechnology-derived ingredient obtained through the fermentation of bacteria from the Lactobacillus genus, valued in cosmetics for its...