Ingredient
Arginine
L-Arginine
2-Amino-5-guanidinovaleric Acid
What it is
Arginine is a naturally occurring amino acid and a component of skin's natural moisturizing factor (NMF).
How it works
It binds water at the skin surface and helps buffer formula pH, supporting hydration and barrier comfort.
What it does
Humectant
Skin conditioning
Buffering
Concerns to know
-
Barrier & hydration support
A well-studied humectant or emollient that helps hydrate the skin and support its moisture barrier.
Found in these products
COSRX
The Vitamin C 23 Serum
Worth knowing
COSRX
COSRX The 6 Peptide Skin Booster Serum
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COSRX
Advanced Snail 96 Mucin Power Essence
Generally well tolerated
COSRX
Advanced Snail 92 All-in-One Cream
Worth knowing
Torriden
Dive In Low Molecular Hyaluronic Acid Cream
Worth knowing
Beauty of Joseon
Glow Deep Serum: Rice + Alpha Arbutin
Worth knowing
Anua
Heartleaf 80 Moisture Soothing Ampoule
Generally well tolerated
Round Lab
PRO Azelaic Acid 12% Soothing Serum
Worth knowing
Round Lab
365 Derma Relief Sunscreen
Worth knowing
Round Lab
Camellia Deep Collagen Firming Ampoule
Worth knowing
Round Lab
Camellia Deep Collagen Firming Cream
Worth knowing
SKIN1004
Probio-Cica Enrich Cream
Worth knowing
SKIN1004
Madagascar Centella Hyalu-Cica Sleeping Pack
Generally well tolerated
SKIN1004
Probio-Cica Intensive Ampoule
Worth knowing
SKIN1004
Madagascar Centella Hyalu-Cica Blue Serum
Generally well tolerated
Round Lab
1025 Dokdo Cleanser
Worth knowing
Round Lab
1025 Dokdo Cleansing Water
Generally well tolerated
Round Lab
1025 Dokdo Cleansing Oil
Worth knowing
SKIN1004
Madagascar Centella Tone Brightening Capsule Cream
Generally well tolerated
SKIN1004
Madagascar Centella Tone Brightening Capsule Ampoule
Generally well tolerated
Round Lab
Soybean Panthenol Mask
Worth knowing
Round Lab
Soybean Panthenol Toner
Worth knowing