Ingredient Glossary
Every hero ingredient in the Maison Masque collection — what it is, what it does, and which products contain it. All claims are sourced from the brands themselves.
PDRN (Polydeoxyribonucleotide)Also known as: Sodium DNA, c-PDRN®, Salmon DNA
What it is
A bioactive compound derived from salmon DNA, widely used in Korean dermatology clinics. Low-molecular PDRN is absorbed into the skin to stimulate natural repair processes.
Why we use it
Supports collagen and elastin production, improves skin elasticity and firmness, helps restore a healthy barrier function.
Found in
- ·Medicube PDRN Pink Collagen Gel Mask
- ·Medicube PDRN Pink Peptide Serum
- ·CELDYQUÉ PDRN 12% + EGF Serum
- ·Medicube PDRN Milky Toner
- ·Rejuran Turnover Ampoule
- ·Anua PDRN HA 100 Cream
Hyaluronic AcidAlso known as: Sodium Hyaluronate, HA
What it is
A humectant naturally present in the skin that holds up to 1,000× its weight in water. Multi-molecular HA complexes deliver moisture at multiple depths.
Why we use it
Intense hydration, plumps the skin, reduces the appearance of fine lines, and improves skin texture.
Found in
- ·Anua PDRN HA 100 Cream (10 types of HA)
- ·SKIN1004 Hyalu-Cica Sleeping Pack (triple HA)
- ·Rejuran Turnover Ampoule
Heartleaf (Houttuynia Cordata)Also known as: Dokudami, Fish Mint
What it is
A traditional East Asian herb with natural soothing and antibacterial properties. Used for centuries in Korean folk medicine for irritated, sensitive skin.
Why we use it
Calms redness and irritation, soothes sensitive or acne-prone skin, supports the skin’s natural barrier.
Found in
- ·Abib Heartleaf Gummy Sheet Mask
Centella AsiaticaAlso known as: Cica, Tiger Grass, Madecassoside, Asiaticoside
What it is
A medicinal herb sourced from Madagascar (in SKIN1004’s case). Contains four key actives: asiaticoside, asiatic acid, madecassic acid, and madecassoside.
Why we use it
Calms inflammation, supports wound healing, strengthens the skin barrier, and provides antioxidant protection.
Found in
- ·SKIN1004 Madagascar Centella Hyalu-Cica Sleeping Pack (40.9%)
- ·Abib Heartleaf Gummy Sheet Mask (Micro TECA cica complex)
CollagenAlso known as: Hydrolyzed Collagen, Low-Molecular Collagen
What it is
A structural protein that gives skin its firmness and elasticity. Low-molecular collagen is broken down to improve absorption through the skin’s surface.
Why we use it
Improves skin elasticity, hydration, and firmness. Supports a plumper, more bouncy texture.
Found in
- ·Medicube PDRN Pink Collagen Gel Mask
- ·Medicube Collagen Night Wrapping Mask
- ·Anua PDRN HA 100 Cream
NiacinamideAlso known as: Vitamin B3
What it is
A water-soluble vitamin that works across multiple skin concerns simultaneously. One of the most well-studied actives in skincare.
Why we use it
Brightens skin tone, reduces the appearance of pores, strengthens the skin barrier, and reduces the look of irritated skin.
Found in
- ·Medicube PDRN Pink Collagen Gel Mask
- ·Medicube PDRN Pink Peptide Serum
- ·Medicube PDRN Milky Toner
- ·CELDYQUÉ PDRN 12% + EGF Serum (20,000 ppm)
EGF (Epidermal Growth Factor)Also known as: rh-Oligopeptide-1
What it is
A growth factor that supports skin cell renewal and regeneration. In skincare, recombinant human EGF (rh-EGF) is used to support the natural turnover process.
Why we use it
Supports firmness, improves skin density, and accelerates recovery after procedures.
Found in
- ·CELDYQUÉ PDRN 12% + EGF Serum
Ceramide NPAlso known as: Ceramides
What it is
A lipid naturally found in the skin’s moisture barrier. Ceramides fill the spaces between skin cells, preventing water loss.
Why we use it
Maintains the skin’s natural barrier function, prevents moisture loss, and supports healthy skin structure.
Found in
- ·Medicube Collagen Night Wrapping Mask
- ·SKIN1004 Hyalu-Cica Sleeping Pack
- ·CELDYQUÉ PDRN 12% + EGF Serum
Adenosine
What it is
A naturally occurring nucleoside present in every cell. In skincare, it’s classified as a functional anti-wrinkle ingredient under Korean cosmetics regulation (KFDA).
Why we use it
Smooths fine lines and wrinkles, supports healthy skin structure and renewal.
Found in
- ·Medicube Collagen Night Wrapping Mask
- ·Medicube PDRN Pink Peptide Serum
- ·Beauty of Joseon Relief Sun
Bifida Ferment LysateAlso known as: Fermented Probiotic Extract
What it is
A fermented lysate derived from Bifida bacteria. Fermentation produces bioactive compounds that support skin strength and resilience.
Why we use it
Boosts skin strength, enhances texture and tone, and provides long-lasting hydration.
Found in
- ·Numbuzin No.3 Tingle-Pore Softening Sheet Mask (42%)
Volufiline™
What it is
A trademarked cosmetic active based on Anemarrhena asphodeloides root extract combined with squalane. Developed to provide a volumising effect on the skin.
Why we use it
Adds volume to aging or thinning skin, improves elasticity and firmness.
Found in
- ·CELDYQUÉ PDRN 12% + EGF Serum
Rice ExtractAlso known as: Oryza Sativa Extract
What it is
A traditional Korean beauty staple dating back to the Joseon dynasty. Rice water is rich in vitamins, amino acids, and minerals.
Why we use it
Moisturises and brightens the skin, delivering the traditional "rice water glow" prized in Korean beauty heritage.
Found in
- ·Beauty of Joseon Relief Sun (30% Oryza Sativa Extract)
Melatonin
What it is
An antioxidant hormone most commonly associated with sleep regulation, but also used topically as a potent free-radical scavenger.
Why we use it
Increases antioxidant levels to help restore and improve skin tone while combating signs of aging.
Found in
- ·SKIN1004 Madagascar Centella Hyalu-Cica Sleeping Pack
c-PDRN® + DOT® TechnologyAlso known as: Cosmetic-PDRN, Rejuran’s proprietary delivery system
What it is
Rejuran’s patented cosmetic PDRN platform, clinically optimised with proprietary DOT® (Delivery Optimising Technology) for superior absorption and biocompatibility.
Why we use it
The highest level of c-PDRN® available in Rejuran’s consumer line. Supports natural collagen production and boosts moisture.
Found in
- ·Rejuran Healer Turnover Ampoule
Full INCI lists are available on each product's detail page.
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