Mederma PM Intensive Overnight Scar Cream for mature skin

How to apply

Questions and answers

What the research says

• 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

• 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 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

• The combination of Thermus thermophilus and Bacillus subtilis mixed-culture ferment extract and copper tripeptide-1 GHK-Cu reduced inflammatory cytokines, protected skin explants from UV-induced damage, and improved wrinkles and skin barrier conditions compared to individual components or controls.

  Skin Research and Technology, 2026

• 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

• Wearing an N95 mask alone compared to using dimethicone cream or hydrocolloid dressing caused more adverse skin reactions among 73 military health care workers, with no significant differences in fit test failure rates between groups.

  Military Medicine, 2024

• A dimethicone skin protectant lotion significantly decreased visual scoring and transepidermal water loss compared to vehicle control and SLS-only treated sites in 12 healthy humans exposed to sodium lauryl sulfate.

  Skin Research and Technology, 2000

• Treatment with a moisturizer containing dimethicone and glycerine increased epidermal thickness by 0.019 mm, improved barrier function by decreasing transepidermal water loss by 13%, decreased melanin intensity, and induced keratins 6 and 16 in fifteen women with moderately photoaged forearms.

  Clinical and Experimental Dermatology, 2007

• Topical onion extract improved scar colour compared to silicon gel, while silicon gel was superior in decreasing scar height in 60 patients with hypertrophic and keloid scars, with the most effective results obtained from combining onion extract and silicon gel.

  Journal of Wound Care, 2007

• Silicone derivative plus onion extract gel reduced pain, itching, and pigmentation compared to placebo in patients after median sternotomy.

  International Wound Journal, 2012

• Topical 12% onion extract gel applied early on Pfannenstiel's cesarean section scars in Asians improved scar height and scar symptoms compared to placebo, with no significant difference in scar redness, pliability, or overall appearance.

  Dermatology Research and Practice, 2012

• Topical copper tripeptide complex on CO2 laser-resurfaced skin caused no significant reduction in erythema or objective improvement in wrinkles compared to controls, but significantly increased patient satisfaction regarding overall skin quality.

  Archives of Facial Plastic Surgery, 2006

• A novel regimen combining a hydroxy acid-based scrub and copper tripeptide serum significantly reduced adherent scalp flaking by 61.24%, increased hair density by 12.48%, increased hair thickness by 25.36%, and improved scalp skin hydration by 76.24% in adults with mild to moderate dandruff over 15 days.

  Cureus, 2024

• Copper applied transdermally as a tripeptide on human skin ex vivo permeated the tissue and was retained in amounts potentially effective for treating inflammatory diseases.

  Inflammation Research, 2010

• A cream combining propolis, tea tree oil, and Aloe vera reduced erythema scars, acne severity index, and total lesion count better than erythromycin cream in sixty patients with mild to moderate acne vulgaris compared to placebo.

  Clinical Pharmacology, 2018

• Topical aloe vera gel significantly accelerated split-thickness skin graft donor-site healing compared to placebo in 12 patients, but showed no significant difference in pain relief.

  Plastic and Reconstructive Surgery, 2018

• Topical application of Aloe vera cream reduced postoperative pain at rest and during defecation, accelerated wound healing at two weeks, and decreased analgesic requirements in patients after open hemorrhoidectomy compared to placebo.

  Journal of Alternative and Complementary Medicine, 2010

• 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

Water, Cetearyl Alcohol, Glycerin, C12-15 Alkyl Benzoate, Dicaprylyl Carbonate, Pentylene Glycol, Cyclomethicone, Arachidyl Alcohol, Alcohol, Behenyl Alcohol, Arachidyl Glucoside, Onion Bulb Extract, Copper Tripeptide-1, Aloe Barbadensis Leaf, Cetearyl Glucoside, Tocopheryl Acetate, Hydroxyethyl Acrylate Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyethylcellulose, Hydrolyzed Soy Protein, Glycine, Panthenol, Hydrolyzed Collagen, Peg-400, Arginine Hcl, Leucine, Lysine Hydrochloride, Alanine, Sodium Lactate, Aspartic Acid, Glucose, Glutamic Acid, Isopropyl Alcohol, Mannitol, Sorbitol, Tromethamine, Valine, Histidine Hydrochloride, Isoleucine, Phenylalanine, Tyrosine, Potassium Sorbate, Sodium Benzoate, Citric Acid, Sodium Hydroxide

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.