Shop Pyunkang Yul Calming Deep Moisture Toner
Toner
Pyunkang Yul

Calming Deep Moisture Toner

~$16.99· 150ml / 5.07 fl oz
AcneUneven textureVisible poresDryness

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.

Glycolic AcidStrong evidence6 citations

Exfoliates the surface of your skin to smooth rough texture and fade dullness. The strongest of the AHAs, so start slow.

Liu H et al., Topical agents for acne (covers AHA / fruit-acid arm), Cochrane Database of Systematic Reviews 2020;5:CD011368 — conclusion: clinical benefit is unclear

2020Meta-analysis — mixedPMID:32356369View source ↗

Sarkar R et al., Comparative Evaluation of Efficacy and Tolerability of Glycolic Acid, Salicylic-Mandelic Acid, and Phytic Acid Combination Peels in Melasma, Dermatologic Surgery 2016;42(3):384-391 — 35% glycolic acid and salicylic-mandelic peels equally effective and safe for melasma in Indian skin

2016Positive — efficacyPMID:26859648View source ↗

Kubiak M et al., Evaluation of 70% glycolic peels versus 15% trichloroacetic peels for the treatment of photodamaged facial skin in aging women, Dermatologic Surgery 2014;40(8):883-891 — both peels improved photodamaged skin; glycolic acid showed faster hydration recovery

2014Positive — efficacyPMID:25068547View source ↗
PHAModerate evidence6 citations

The mildest exfoliating acid. Refines texture and hydrates at the same time, and it's sensitive-skin friendly.

Peng Y et al., Comparison of Efficacy and Willingness to a 5% Gluconolactone-Based Topical Serum and Intense Pulsed Light in Mild Erythema of Rosacea: A Paired Control Study, Journal of Cosmetic Dermatology 2025;24(3):e70025 — 5% gluconolactone serum improved erythema and moisturization over 30 days

2025Positive — efficacyPMID:40111222View source ↗

Kantikosum K et al., The efficacy of glycolic acid, salicylic acid, gluconolactone, and licochalcone A combined with 0.1% adapalene vs adapalene monotherapy in mild-to-moderate acne vulgaris, Clinical Cosmetic and Investigational Dermatology 2019;12:151-161 — gluconolactone cosmeceutical added benefit on top of adapalene without hindering treatment

2019Positive — efficacyPMID:30858720View source ↗

Green BA et al., Clinical and cosmeceutical uses of hydroxyacids, Clinics in Dermatology 2009;27(5):495-501

2009Positive — efficacyPMID:19695482View source ↗
3 more citations view all on the PHA page ↗
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 ↗
+2 more ingredients
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 ↗
PanthenolModerate evidence5 citations

Pro-vitamin B5. Deeply hydrates and helps repair the skin barrier, calming dry or compromised skin.

Gao Y et al., Evaluation of the Efficacy and Safety of a Panthenol-Enriched Mask for Skin Barrier Recovery After Facial Laser Treatment, Journal of Cosmetic Dermatology 2025;24(7):e70223 — double-blind RCT (n=60): panthenol mask decreased erythema, enhanced hydration, repaired barrier vs saline

2025Positive — efficacyPMID:40613435View source ↗

Cho YS et al., Use of Dexpanthenol for Atopic Dermatitis-Benefits and Recommendations Based on Current Evidence, Journal of Clinical Medicine 2022;11(14):3943 — Korean-authored review; dexpanthenol improves barrier and reduces severity in mild-to-moderate AD

2022Meta-analysis — positivePMID:35887707View source ↗

Heise R et al., Accelerated wound healing with a dexpanthenol-containing ointment after fractional ablative CO2 laser resurfacing of photo-damaged skin in a randomized prospective clinical trial, Cutaneous and Ocular Toxicology 2019;38(3):274-278 — RCT: dexpanthenol significantly faster wound closure vs petroleum jelly post-laser

2019Positive — efficacyPMID:30897983View 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.

Layering conflicts

Ingredients in this product that can react with common actives. Avoid stacking unless noted.

  • Retinol + glycolic acid is a classic barrier-buster. Use on different nights.

  • Tretinoin + glycolic acid causes significant barrier disruption. Never layer.

  • Adapalenemedium

    Adapalene + glycolic acid can over-exfoliate. Alternate nights.

  • AHA + BHA stacking risks over-exfoliation. Use a pre-formulated AHA/BHA product or alternate days.

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