Etude House Soon Jung pH 5.5 Relief Toner for acne-prone skin

How to apply

Questions and answers

What the research says

• An anti-acne hydrogel containing Aloe barbadensis, Garcinia mangostana, and Camellia sinensis extracts showed superior antiacne and antiblotch activities compared to 1% clindamycin gel in sixty subjects with mild-moderate acne.

  Clinical, Cosmetic and Investigational Dermatology, 2019

• Co-delivery of paeonol and madecassoside via nanoemulsions improved transdermal delivery, promoted barrier repair proteins, inhibited inflammatory cytokine secretion in cellular and 3D models, and reduced transepidermal water loss and acne in human facial skin compared to free components.

  Molecules, 2023

• A single application of a moisturizing fluid containing hyaluronic acid 1%, glycerin 5%, and Centella asiatica stem cells extract significantly increased skin hydration by 29% and reduced transepidermal water loss at 24 hours compared to baseline and an untreated control site in twenty healthy women.

  Clinical, Cosmetic and Investigational Dermatology, 2017

• A new topical panthenol-containing emollient significantly improved transepidermal water loss reduction, stratum corneum hydration, and intercellular lipid lamellae length compared with control in healthy subjects without negatively impacting bacterial viability.

  The Journal of Dermatological Treatment, 2017

• Cosmetic formulations containing 5% Centella asiatica extract showed the best efficacy in improving skin moisture and decreasing transepidermal water loss, while also exhibiting antiinflammatory properties in 25 volunteers compared to baseline measurements.

  Indian Journal of Pharmaceutical Sciences, 2016

• Topical application of 0.05% w/w ECa 233 gel reduced erythema index by 0.03 U and improved early crusting and general wound appearance compared to placebo in thirty individuals undergoing facial laser resurfacing.

  Journal of Alternative and Complementary Medicine, 2020

• Moisturizer containing 5% panthenol, madecassoside, and copper-zinc-manganese decreased adverse reactions and downtime after ablative fractional carbon dioxide laser resurfacing with comparable efficacy to 0.02% triamcinolone acetonide cream in 20 subjects.

  Journal of Cosmetic Dermatology, 2019

• Topical treatment with 5% vitamin C and 0.1% madecassoside significantly improved clinical scores for wrinkles, suppleness, firmness, roughness, and skin hydration, along with functional and structural remodeling of the elastic fiber network in 20 female volunteers with photoaged skin after 6 months compared to baseline.

  Experimental Dermatology, 2008

• Topical dexpanthenol acts as a moisturizer, improves stratum corneum hydration, accelerates wound healing and epidermal regeneration, reduces erythema, and improves symptoms of skin irritation compared to vehicle or no pretreatment.

  American Journal of Clinical Dermatology, 2002

• Topical dexpanthenol formulated in lipophilic vehicles improved stratum corneum hydration and reduced transepidermal water loss compared to vehicle control in humans.

  Arzneimittel-Forschung, 2000

• Hyaluronic acid, hyaluronic acid plus dexpanthenol, and isotonic saline nasal sprays all significantly improved dry nose symptoms over four weeks in 240 patients, with hyaluronic acid plus dexpanthenol providing superior nasal moisturisation compared to the other two.

  Auris, Nasus, Larynx, 2020

• The emollient V0034CR significantly reduced TEWL compared to vehicle and vehicle plus glycerol, and significantly increased corneometry scores compared to vehicle and vehicle plus petrolatum in healthy volunteers with dry skin, demonstrating combined barrier function improvement from petrolatum and hydration improvement from glycerol.

  Journal of Cosmetic Dermatology, 2020

• Ten days of treatment with a cream containing 20% glycerin significantly increased skin hydration measured by corneometer values in 17 healthy volunteers compared to a placebo cream, but showed no influence on transepidermal water loss or skin sensitivity to an irritating surfactant.

  International Journal of Cosmetic Science, 2001

• Niacinamide/glycerin body moisturizers provided better rapid and prolonged improvement of cosmetic xerosis through functional improvement of stratum corneum barrier function compared to no treatment and conventional moisturizers in female subjects.

  Journal of Drugs in Dermatology, 2012

• Topical green tea extract significantly improved clinical symptoms, tear breakup times, and meibomian gland health compared to standard treatment in patients with dry eye and Meibomian Gland Dysfunction.

  Journal of Clinical and Diagnostic Research, 2017

• Topical low-dose green tea extract reduces UVB-induced p53 expression and apoptosis in human skin keratinocytes compared to placebo.

  Experimental Dermatology, 2009

• Topical application of green tea extract encapsulated chitosan microparticles improved skin elasticity, melanin index, and facial wrinkles compared to a placebo in female volunteers without causing skin irritation.

  Journal of Cosmetic Dermatology, 2022

• Motor baicalin encapsulated in bio-vesicles enhanced water solubility, stability, transdermal penetration, antioxidant activity, and clinical skin antiaging efficacy compared to liposome baicalin and baicalin raw material.

  Journal of Cosmetic Dermatology, 2025

• A nighttime topical antioxidant containing resveratrol, baicalin, and vitamin E significantly improved fine lines, wrinkles, firmness, elasticity, laxity, hyperpigmentation, radiance, roughness, and dermal thickness in subjects with mild to moderately photodamaged skin over 12 weeks.

  Journal of Drugs in Dermatology, 2014

• Glycyrrhizin micellar nanocarriers significantly improved topical penetration and follicular accumulation of baicalin in porcine skin, enhanced human dermal papilla cell proliferation, and promoted hair recovery through Wnt/β-catenin pathway activation and upregulation of VEGF, α-MSH, and IL-10.

  International Journal of Pharmaceutics, 2022

Ingredients

Water, Propanediol, Glycerin, Betaine, Panthenol, 1,2-Hexanediol, Polyglycerin-3, Ethylhexylglycerin, Disodium Edta, Carbomer, Madecassoside, Butylene Glycol, Scutellaria Baicalensis Root Extract, Tocopherol, Camellia Sinensis Leaf Extract

Behind this fit score

Lovi calculates every fit score from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.