PCA SKIN ExLinea Pro Peptide Serum for combination skin

How to apply

Questions and answers

What the research says

• Argireline treatment twice daily for 4 weeks produced a significant anti-wrinkle effect with 48.9% total efficacy and decreased skin roughness in Chinese subjects compared with 0% efficacy and no decrease in roughness in the placebo group.

  American Journal of Clinical Dermatology, 2013

• Treatment with cross-linked hyaluronic acid-based microneedle patches combined with acetyl hexapeptide-8 or epidermal growth factor significantly improved wrinkles and skin hydration compared to the patch alone in Korean females over 29 days.

  Annals of Dermatology, 2019

• Acetyl hexapeptide-3 and tripeptide-10 citrulline demonstrated antiwrinkle efficacy and decreased transepidermal water loss in twenty-four healthy volunteers compared to control groups, though synergistic effects between the two peptides remained unclear.

  Journal of Cosmetic Dermatology, 2017

• 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

• Soaps containing betaine caused the least skin irritation compared to other tested soaps in twenty-eight healthy subjects, though irritation did not decrease with increasing concentrations of betaine.

  Skin Research and Technology, 2003

• Daily topical acetyl hexapeptide-8 showed a trend toward a longer time until return to baseline Jankovic Blepharospasm Rating Scale scores compared to placebo (3.7 months vs. 3.0 months) in 24 patients with blepharospasm receiving botulinum toxin therapy.

  European Journal of Neurology, 2013

• Argireline applied twice daily for 4 weeks achieved a total anti-wrinkle efficiency of 48.9% and notably reduced wrinkle depth compared to placebo in Chinese subjects.

  Journal of Cosmetic and Laser Therapy, 2013

• Dissolving microneedles loaded with 3-O-ethyl ascorbic acid and acetyl hexapeptide-8 achieved higher cumulative transdermal delivery than aqueous solutions and significantly reduced photoaging signs while restoring oxidative balance in a UV/D-galactose-induced mouse model.

  International Journal of Biological Macromolecules, 2026

• 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

• Application of a cosmetic multiple emulsion containing vitamin C and wheat protein as well as a base formulation increased skin moisture in 11 human volunteers over four weeks, while producing no significant variations in skin sebum, pH, elasticity, melanin, or erythema.

  Pakistan Journal of Pharmaceutical Sciences, 2008

• The addition of polymers and hydrolysed proteins to model body wash cosmetics improves foaming properties, storage stability, and safety by reducing skin irritant potential, with the polyvinylpyrrolidone/hydrolysed wheat protein crosspolymer showing the strongest reduction effect.

  Colloids and Surfaces. B, Biointerfaces, 2015

• 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

Ingredients

Water, Glycerin, Pentylene Glycol, Glyceryl Isostearate, Isostearyl Isostearate, C13-15 Alkane, Betaine, Acrylates C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Methyl Gluceth-20, Rice Starch, Polyglyceryl-3 Laurate, Sodium Levulinate, Caprylyl Glycol, Levulinic Acid, Polyglyceryl-6 Oleate, Hydrolyzed Wheat Protein, Ethylhexylglycerin, Hydrolyzed Soy Protein, Sodium Hydroxide, Tetrasodium Glutamate Diacetate, Butylene Glycol, Pectin, Hydroxyethylcellulose, Arginine, Proline, Serine, Glucose, Acetyl Octapeptide-3, Bacillus Soybean Extract Ferment, Sodium Hyaluronate, Chondrus Crispus Extract, Acetyl Hexapeptide-8, Disodium Phosphate, Polysorbate 60, Sodium Phosphate

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.