No.1 Pure-Full Calming Herb Toner
What it's good for
Key actives from our research database. Click any to read the full evidence dossier.
Also called "cica," it calms redness, repairs the skin barrier, and speeds up recovery. The go-to for irritated or reactive skin.
Good for: Anti-inflammatory, Barrier repair
A calming K-beauty botanical that's also antibacterial, so it pairs well for acne-prone, sensitive skin.
Good for: Anti-inflammatory, Anti-acne
A gentle Asian-skincare brightener derived from licorice root. Fades dark spots and calms redness, and it's a pregnancy-safe alternative to stronger fade ingredients.
Good for: Brightening, Anti-inflammatory
Evidence behind the ingredients
Real citations from our research database, one per tracked active in this product. Click any ingredient name to read its full evidence dossier.
Also called "cica," it calms redness, repairs the skin barrier, and speeds up recovery. The go-to for irritated or reactive skin.
Hur N et al., A Randomized, Double-Blind, Placebo-Controlled Trial Assessing the Effects of Oral Centella asiatica Extract on Skin Aging-Related Parameters in Middle-Aged Korean Women, Nutrients 2026
Borowicz KK et al., Geroprotective Potential of Centella asiatica: Modulation of Cellular Aging, Nutrients 2026
Witkowska K et al., Topical Application of Centella asiatica in Wound Healing: Recent Insights into Mechanisms and Clinical Efficacy, Pharmaceutics 2024;16(10):1252 — modern hydrogel and nanostructured Centella delivery systems accelerate wound healing across wound types
A calming K-beauty botanical that's also antibacterial, so it pairs well for acne-prone, sensitive skin.
Song Z et al., Inhibition of LPS-Induced Skin Inflammatory Response and Barrier Damage via MAPK/NF-kB Signaling Pathway by Houttuynia cordata Thunb Fermentation Broth, Foods 2024
Kwon N et al., Protective Effects of Fermented Houttuynia cordata Against UVA and H2O2-Induced Oxidative Stress in Human Skin Keratinocytes, Applied Biochemistry and Biotechnology 2023;195(5):3027-3046 — Korean-authored; fermented H. cordata showed antioxidant and anti-inflammatory protection against UVA/H2O2 stress
Rafiq S et al., Pharmacological Effects of Houttuynia cordata Thunb (H. cordata): A Comprehensive Review, Pharmaceuticals (Basel) 2022
A gentle Asian-skincare brightener derived from licorice root. Fades dark spots and calms redness, and it's a pregnancy-safe alternative to stronger fade ingredients.
Glabridin Inhibits Melanogenesis and Melanin Transfer via Wnt/beta-Catenin Pathway and Rho Family GTPase-Mediated Dendritic Formation Suppression, Pharmaceuticals (Basel) 2026;19(3) — glabridin (the licorice-root active) suppressed melanin synthesis and keratinocyte melanin transfer in vitro via Wnt/beta-Catenin and Rho-GTPase dendrite suppression
Liu Y et al., Glycyrrhiza glabra extract as a skin-whitening agent: Identification of active components and CRTC1/MITF pathway-inhibition mechanism, Journal of Ethnopharmacology 2025;349:119948 — identifies glabridin as the principal active and maps skin-whitening mechanism via CREB/CRTC1/MITF suppression
Wang JY et al., Preparation of compound liquorice microemulsion gel and its pharmacodynamics evaluation, Zhongguo Zhong Yao Za Zhi (China Journal of Chinese Materia Medica) 2020;45(21):5193-5199 — compound licorice (Glycyrrhiza) microemulsion gel significantly reduced ear swelling and inflammatory infiltration in chronic eczema mouse model
Sources: 10 clinical journals and regulatory databases across the US, EU, Korea, Japan, and China. Every entry points to a specific document. See methodology for the full list and what each outcome label means.
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