TIRTIR SOS Serum for skin with dark spots

How to apply

Questions and answers

What the research says

• 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

• 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

• Poly-gamma-glutamic acid derived from a novel Bacillus subtilis strain dose-dependently increased skin barrier markers, hyaluronic acid synthesis, and aquaporin 3 expression in keratinocytes, and elevated filaggrin, involucrin, CD44, and aquaporin 3 expression in a reconstructed skin model compared to the control.

  International Journal of Molecular Sciences, 2025

• 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 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

• 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

• Curcumin-loaded polyglutamic acid and gum arabic electrospun nanofibers accelerated wound healing, increased TGF-beta1 and VEGF expression, reduced inflammatory factors, and enhanced re-epithelialization and tissue regeneration in a mouse model with acute full-thickness skin defects.

  International Journal of Biological Macromolecules, 2024

• Polyglutamic acid and polylysine composite hydrogels promote wound repair and hemostasis through high water absorption, bioadhesion, calcium ion-mediated coagulation factor activation, and inherent antibacterial properties in a deep skin defect model.

  Macromolecular Bioscience, 2021

• Topical gel containing chitosan, 0.2% chlorhexidine, allantoin and dexpanthenol did not improve postoperative comfort regarding swelling and pain, but improved the wound's aesthetic appearance following impacted lower third molar extraction compared to no gel.

  Medicina Oral, Patologia Oral Y Cirugia Bucal, 2016

• A topical gel containing chitosan, chlorhexidine, allantoin, and dexpanthenol significantly reduced postoperative pain, trismus, swelling, and analgesic consumption, while improving wound healing after third molar surgery compared to a placebo.

  Medicina Oral, Patologia Oral Y Cirugia Bucal, 2020

• An overnight patch containing Allium cepa extract and allantoin safely promotes scar healing after dermatologic surgery, resulting in significantly greater reductions in observer- and patient-assessed POSAS scores compared to no treatment.

  Aesthetic Plastic Surgery, 2018

Ingredients

Centella Asiatica Leaf Water, Glycerin, Butylene Glycol, Witch Hazel Extract, 1,2-Hexanediol, Arginine, Carbomer, Cetyl Ethylhexanoate, Caprylyl Glycol, Sophora Flavescens Root Extract, Ficus Carica Fruit Extract, Ammonium Acryloyldimethyltaurate Vp Copolymer, C12-14 Pareth-12, Polyglyceryl-10 Laurate, Polyglyceryl-10 Myristate, Camellia Sinensis Leaf Extract, Rosmarinus Officinalis Leaf Extract Rosemary Leaf Extract, Chamomilla Recutita Flower Extract Matricaria Flower Extract, Betaine, Centella Asiatica Extract, Glycyrrhiza Glabra Root Extract Licorice Root Extract, Allantoin, Panthenol, Willow Bark Extract, Cucumis Sativus Fruit Extract, Polygonum Cuspidatum Root Extract, Scutellaria Baicalensis Root Extract, Disodium Edta, Chamaecyparis Obtusa Water, Spirodela Polyrhiza Extract, Alteromonas Extract Ferment, Illicium Verum Fruit Extract Anise Fruit Extract, Squalane, Phellinus Linteus Extract, Portulaca Oleracea Extract, Sodium Pca, Beta-Glucan, Sodium Hyaluronate, Xylitol, Polyglutamic Acid, Natto Gum, Copper Tripeptide-1, Acetyl Hexapeptide-8, Palmitoyl Pentapeptide-4

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.