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.
Brightening
8 ingredients
Glycolic Acid
A small-molecule AHA that removes dead skin cells, smooths texture and evens the appearance of skin tone when used in a controlled way.
Arbutin
A tyrosinase-inhibiting brightening ingredient derived from bearberry and formulated as a gentler alternative to hydroquinone.
Pomegranate Extract
A fruit extract with a high concentration of polyphenols, especially punicalagins, used for antioxidant support and to promote a brighter-looking tone.
Licorice Root Extract
A brightening botanical extract in which glabridin inhibits pigment production through the same enzyme targeted by Vitamin C and arbutin.
Galactomyces Ferment Filtrate
A ferment filtrate rich in amino acids, minerals and hydrating compounds that improve skin softness and radiance.
Glutathione
A tripeptide antioxidant naturally produced in every cell, used topically to support radiance alongside Vitamin C and Niacinamide.
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.
Vitamin C
An antioxidant vitamin the body cannot produce on its own and an essential component in the skin's natural collagen-building process.
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.