Ingredient Encyclopedia
Korean Skincare Ingredients, Explained
Every Korean skincare routine at Allùre Shop rests on a short list of active ingredients that keep coming back for a reason. Here we explain what each one is: how it works, which skin type it suits, what it pairs with, and which Korean skincare products in our catalog contain it. Read about it before choosing your next serum.
Why this page exists
"Glass skin" is a visible, well-defined skin finish
The Korean beauty term "glass skin" describes an even, well-hydrated surface that reflects light evenly instead of scattering it across dry patches, enlarged pores, or uneven tone. This look comes from a well-supported skin barrier: ingredients that help retain water, calm visible irritation, and support the skin's natural lipid layer over weeks of consistent use, not from a single one-time application.
Niacinamide, Hyaluronic Acid, Centella Asiatica, and Galactomyces Ferment Filtrate are four active ingredients that contribute strongly to this look and form the basis of this encyclopedia. Each section below explains what the ingredient is, how it works, and which products in our catalog contain it, so you can build a routine around function rather than marketing language.
Soothing
14 ingredients
Allantoin
A gentle soothing and skin-renewing ingredient tolerated by almost everyone and found in many Korean skincare formulas.
Aloe Vera
The gel of a succulent plant used on skin for thousands of years and valued today for fast, lightweight hydration and a documented soothing effect.
Azulene
A soothing ingredient from the azulene family, known for antioxidant activity and for helping reduce the appearance of redness.
Beta-Glucan
A polysaccharide usually derived from oats or yeast that soothes irritation and supports the skin barrier without the stickiness of heavier humectants.
Betaine
An osmolyte originally derived from sugar beet that supports water balance in skin cells during stress without adding oiliness or stickiness.
Centella Asiatica
A botanical extract rich in madecassoside and triterpenes, used to calm redness and support the skin barrier.
Calendula Extract
A flower extract rich in flavonoids and triterpenes, used to calm redness and support skin comfort.
Chamomile Extract
A flower extract from the daisy family, where the blue-toned compound azulene is one of the most visible signs of its soothing role in cosmetics.
Purslane Extract
An extract from an omega-3-rich succulent, increasingly used in Korean skincare as a soothing, barrier-supporting alternative to Centella.
Licorice Root Extract
A brightening botanical extract in which glabridin inhibits pigment production through the same enzyme targeted by Vitamin C and arbutin.
Green Tea Extract
A leaf extract rich in polyphenols, with antioxidant activity driven largely by EGCG, one of the most studied botanical compounds in skincare.
Snail Mucin
A secretion filtrate rich in glycoproteins and hydrating compounds that smooths texture and supports the barrier.
Niacinamide
A water-soluble form of Vitamin B3 that strengthens the barrier, evens the appearance of tone and regulates oil, making it one of the most universally useful staples in Korean skincare.
Panthenol
Provitamin B5 that hydrates, soothes and supports recovery of the skin barrier.
Ready to choose products by active ingredient?
Browse our full catalog of Korean skincare products, or start with our K-beauty guide to build your routine.