Shop Pyunkang Yul Essence Toner
Toner
Pyunkang Yul

Essence Toner

~$19.99· 200ml / 6.8 fl oz
DrynessRednessUneven texture

Tracked ingredients

Key actives from our research database. Click any to read the full evidence dossier.

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.

Centella AsiaticaModerate evidence8 citations

Also called "cica," it calms redness, repairs the skin barrier, and speeds up healing. The go-to for irritated or reactive skin.

Su Z et al., The Effectiveness and Safety of a Skin Care Product With Centella asiatica Leaf Extract, Ceramide NP, and Panthenol in Subjects With Sensitive Skin: A Prospective, Observational Study, Journal of Cosmetic Dermatology 2025;24(7):e70324 — Sun Yat-Sen U 4-week study; cream provided rapid relief of facial redness and supported barrier function

2025Positive — efficacyPMID:40682399View source ↗

Cho SY et al., Comparative analysis of bioactive compounds and the anti-inflammatory and wound-healing properties of Centella asiatica, Journal of Applied Biological Chemistry 2025;68:30 — Jeju-grown C. asiatica matched/exceeded imported sources for asiaticoside content; in RAW264.7 + HaCaT models inhibited iNOS/COX-2/IL-1β/IL-6 and accelerated HaCaT wound closure

2025Mechanism onlyKCI:ART003203648View source ↗

Wang L et al., A two-center randomized controlled trial of a repairing mask as an adjunctive treatment for mild to moderate rosacea, Journal of Cosmetic Dermatology 2024;23(10):3281-3286 — Centella asiatica repairing mask adjunct to minocycline improved IGA, repaired barrier, reduced rosacea symptoms (n=64)

2024Positive — efficacyPMID:38831627View source ↗
AllantoinModerate evidence6 citations

A gentle smoother and skin-soother. Reduces flakiness and helps the surface look more even.

Xu Z et al., Efficacy and Safety of Topical Compound Heparin Sodium Allantoin Gel for the Treatment of Rosacea, Journal of Cosmetic Dermatology 2025;24(4):e70129 — RCT (n=82, 12 weeks): allantoin gel improved erythema and alleviated itching/burning vs traditional therapy

2025Positive — efficacyPMID:40177799View source ↗

Tan C et al., The combination of allantoin, bisabolol, D-panthenol and dipotassium glycyrrhizinate mitigates UVB-induced PGE2 synthesis by keratinocytes, International Journal of Cosmetic Science 2024;46(5):691-701 — in vitro: allantoin combination reduced UVB-induced PGE2, IL-1α, IL-6, IL-8, TNFα

2024Mechanism onlyPMID:38433250View source ↗

Saucedo-Acuna RA et al. (Mexico), Characterization and In Vivo Assay of Allantoin-Enriched Pectin Hydrogel for the Treatment of Skin Wounds, International Journal of Molecular Sciences 2023;24(8):7377 — allantoin-pectin hydrogel reduced wound healing time by ~71% with complete closure at day 15 in rat model

2023Mechanism onlyPMID:37108540View source ↗
Hyaluronic AcidStrong evidence6 citations

A pure hydrator that holds water in your skin. Makes skin look plumper and smoother almost immediately.

Bravo B et al., Benefits of topical hyaluronic acid for skin quality and signs of skin aging: From literature review to clinical evidence, Dermatology and Therapy 2022;12(12):2657-2680 — HA-based cosmeceuticals reliably improve hydration and signs of skin aging

2022Meta-analysis — positivePMID:36200921View source ↗

An JH et al., Anti-Wrinkle Efficacy of Cross-Linked Hyaluronic Acid-Based Microneedle Patch with Acetyl Hexapeptide-8 and Epidermal Growth Factor on Korean Skin, Annals of Dermatology 2019;31(3):263-271 — cross-linked HA microneedle patches improved wrinkles on Korean skin with minimal discomfort

2019Positive — efficacyPMID:33911590View source ↗

Jegasothy SM et al., Efficacy of a New Topical Nano-hyaluronic Acid in Humans, Journal of Clinical and Aesthetic Dermatology 2014;7(3):27-29 — nano-HA produced up to 40% wrinkle-depth reduction, 96% hydration increase, and 55% elasticity improvement over 8 weeks

2014Positive — efficacyPMID:24688623View source ↗
+1 more ingredient
CeramidesStrong evidence6 citations

Refills the natural barrier between your skin cells. Locks moisture in, keeps irritants out, calms dry or damaged skin.

Andrew PV et al., Topical supplementation with physiological lipids rebalances the stratum corneum ceramide profile and strengthens skin barrier function in adults predisposed to atopic dermatitis, British Journal of Dermatology 2025;193(4):729-740 — physiological-lipid emulsion raised SC ceramide NP/AP and improved barrier function vs control

2025Positive — efficacyPMID:40408261View source ↗

Kawamoto A et al., Chain length of covalently bound ceramides correlates with skin barrier function in healthy subjects, Journal of Dermatological Science 2023;110(1):35-38 — clinical study: SC ceramide chain length directly correlates with barrier function; longer-chain ceramides are the functionally relevant species

2023Mechanism onlyPMID:37002180View source ↗

Shindo S et al., Effects of a moisturizer containing pseudo-ceramide and a eucalyptus extract on sweating function in adult atopic dermatitis: a double-blind, randomized, controlled left-right comparison clinical trial, Journal of Cosmetic Dermatology 2022;21(10):4503-4509 — pseudo-ceramide + eucalyptus moisturizer restored sweating function and barrier in AD adults

2022Positive — efficacyPMID:35298858View source ↗

Sources: PubMed · KCI · J-Stage · CNKI · Wanfang · SFD · MFDS · Cochrane · SCCS · CIR. Every entry points to a specific document. See methodology for what each outcome label means.

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