First Aid Beauty Hydrating Serum for combination skin

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

• 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 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

• 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

• 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

• Squalane at 0.005-0.015% counteracts UVA-induced oxidative stress, inflammation, and collagen metabolism inhibition while stimulating fibroblast migration in human dermal fibroblasts.

  Molecules, 2025

• Plant-derived squalane protected human dermal fibroblasts against UVA-induced damage by counteracting ROS formation, suppressing apoptosis-related proteins p53, caspase-3, caspase-9, and PARP, and restoring the pro-survival p-Akt/mTOR pathway.

  Antioxidants, 2025

• A repair cream containing Rhealba oat plantlets extract, l-ALA-l-GLU dipeptide, and hyaluronic acid provided immediate relief and was judged by doctors as good or very good in 96.8% of cases for wound healing in 2,363 patients following dermatological acts.

  Clinical, Cosmetic and Investigational Dermatology, 2018

• Topically applied Avena sativa and Avena Rhealba oatmeal extracts significantly reduced skin irritation parameters including a* parameter increase and blood flow increase compared to vehicle in 12 healthy individuals subjected to the sodium lauryl sulfate irritation model.

  Skin Pharmacology and Applied Skin Physiology, 2002

• Colloidal oat extracts diminished pro-inflammatory cytokines in vitro and colloidal oat lotion improved skin dryness, scaling, roughness, and itch intensity in healthy female subjects compared to baseline.

  Journal of Drugs in Dermatology, 2015

• Topical application of TAC/Collagen postbiotics gel improved skin moisture score and inflammation index, and reduced porphyrins and brown spots in 20 volunteers with acne vulgaris.

  Journal of Cosmetic Dermatology, 2022

• Topical collagen tripeptide application improved skin wrinkles, elasticity, and density while reducing advanced glycated end products in 22 Asian women over 4 weeks.

  International Journal of Molecular Sciences, 2022

• Marine collagen extracted from Greenland halibut skin showed a non-cytotoxic effect on fibroblast cells and provided a slight skin hydration effect when incorporated into cosmetic hydrogel formulations at dosages of 0.1, 0.25, and 0.5% in 23 healthy volunteers.

  Marine Drugs, 2023

Ingredients

Glycerin, Glycereth-26, Squalane, Sodium Hyaluronate, Water-Soluble Collagen, Oat, Panthenol, Chrysanthemum Parthenium Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root Extract Licorice Root Extract, Allantoin, Ethylhexylglycerin, Sorbitan Oleate, Acrylates C10-30 Alkyl Acrylate Crosspolymer, Sodium Pca, Phenoxyethanol, Sodium Hydroxide, Potassium Sorbate, Sodium Benzoate, Tetrasodium Edta

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.