Dear, Klairs Supple Preparation Unscented Toner for skin with dark spots

How to apply

Questions and answers

What the research says

• The tetrapeptide PKEK exerts skin whitening effects by reducing UVB-stimulated mRNA expression of pigmentation-inducing mediators like POMC and tyrosinase, and significantly fades facial pigment spots when combined with sodium ascorbyl phosphate.

  Experimental Dermatology, 2012

• 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 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

• A panthenol-enriched mask significantly decreased erythema and hyperpigmentation, increased sebum and stratum corneum moisture, and reduced transepidermal water loss compared to a saline dressing in 60 subjects undergoing facial laser treatment.

  Journal of Cosmetic Dermatology, 2025

• Skin care regimens containing beta-glucan improved hemoglobin index, skin hydration, and transepidermal water loss compared to vehicle control in 20 patients undergoing fractional laser therapy.

  Journal of Cosmetic Dermatology, 2021

• Treatment with topical formulations containing beta-glucan combined with nanofractional radiofrequency plus magnetic nanofractional radiofrequency showed the best efficacy and was tolerable and effective in Chinese women with abdominal stretch marks compared to control groups.

  Dermatology and Therapy, 2023

• Topical beta-glucan mildly improved striae gravidarum, 1565-nm non-ablative fractional laser showed better results than topical beta-glucan, and the combined strategy further improved striae gravidarum atrophy compared to single treatment.

  The Journal of Dermatology, 2022

• Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control.

  Journal of Drugs in Dermatology, 2011

• Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction.

  Clinical Oral Investigations, 2022

• Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days.

  BMC Oral Health, 2019

• 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

• 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

• 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

• Combining 755 nm alexandrite laser with topical licorice gel significantly reduces terminal hair counts compared to alexandrite laser with placebo in women with idiopathic hirsutism.

  Evidence-based Complementary and Alternative Medicine, 2015

• Licochalcone A activated Nrf2 signaling, elevated cytoprotective enzymes, increased the reduced-to-oxidized glutathione ratio, and decreased reactive oxygen species in human fibroblasts and neutrophils, while a LicA-rich licorice extract lowered UVA-induced oxidative processes in vivo.

  Experimental Dermatology, 2015

• Bioactive glycyrrhizic acid and oxymatrine ionic liquid self-assembled nanomicelles significantly promoted the transdermal permeation, subcutaneous retention, and anti-photoaging efficacy of palmitoyl pentapeptide-4 in cellular and animal models compared to unformulated peptide.

  Advanced Science, 2025

Ingredients

Water, Butylene Glycol, Dimethyl Sulfone, Betaine, Caprylic Capric Triglyceride, Natto Gum, Sodium Hyaluronate, Disodium Edta, Centella Asiatica Extract, Glycyrrhiza Glabra Root Extract Licorice Root Extract, Polyquaternium-51, Chlorphenesin, Tocopheryl Acetate, Carbomer, Panthenol, Arginine, Luffa Cylindrica Stem Extract Leaf Fruit, Beta-Glucan, Althaea Rosea Flower Extract, Aloe Barbadensis Leaf Extract, Hydroxyethylcellulose, Portulaca Oleracea Extract, Lysine Hcl, Proline, Sodium Ascorbyl Phosphate, Acetyl Methionine, Theanine, Copper Tripeptide-1

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.