Olay Regenerist Collagen Peptide 24 Serum for skin with dark spots

How to apply

Questions and answers

What the research says

• Topical palmitoyl pentapeptide (pal-KTTKS) provided significant improvement versus placebo control in the reduction of wrinkles and fine lines in Caucasian female subjects.

  International Journal of Cosmetic Science, 2005

• 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

• Topical treatment of nicotinamide, alone or in combination with other active ingredients, reduces the progression of skin aging and hyperpigmentation in clinical trials while being well tolerated.

  Antioxidants, 2021

• 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

• A liquid formulation containing hydrolyzed collagen demonstrated structural stability, peptide mass distribution between 0.5 and 19.5 kDa, and faded forehead wrinkles in five volunteers while proving to be non-irritating and hypoallergenic.

  Journal of Cosmetic Dermatology, 2021

• Exposure to collagen peptides increased the expression of COL1A1, ELN, and VCAN genes and collagen protein levels in cultured human dermal fibroblasts compared to untreated controls.

  Frontiers in Medicine, 2024

• Salmo salar and Tilapia nilotica skin collagen peptides accelerate wound healing in a rat murine wound model by reducing proinflammatory cytokines, upregulating BD14, NOD2, IL-10, VEGF, and beta-FGF, and favorably altering wound microflora colonization compared to untreated controls.

  Journal of Agricultural and Food Chemistry, 2020

• Topical post-laser application of human adipocyte-derived mesenchymal stem cell media combined with niacinamide significantly improved wrinkle index, melanin index, patient satisfaction, and investigator esthetic improvement scores compared to vehicle cream in patients with aging skin.

  Journal of Cosmetic Dermatology, 2021

• Topical nicotinamide prevented solar-simulated UV-induced immunosuppression in healthy volunteers, and men experienced immunosuppression at solar-simulated UV doses three times lower than those required for women.

  The Journal of Investigative Dermatology, 2008

• Topical 5% niacinamide applied twice daily for 12 weeks reduced fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness, and improved skin elasticity compared to vehicle control in 50 female white subjects with facial photoaging.

  Dermatologic Surgery, 2005

• 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 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

• 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 dexpanthenol formulated in lipophilic vehicles improved stratum corneum hydration and reduced transepidermal water loss compared to vehicle control in humans.

  Arzneimittel-Forschung, 2000

• Hyaluronic acid, hyaluronic acid plus dexpanthenol, and isotonic saline nasal sprays all significantly improved dry nose symptoms over four weeks in 240 patients, with hyaluronic acid plus dexpanthenol providing superior nasal moisturisation compared to the other two.

  Auris, Nasus, Larynx, 2020

• Snow mushroom alcohol-based hand rub gel significantly improved skin moisture better than the placebo through 180 minutes while maintaining comparable antiseptic efficacy in 20 human volunteers.

  Journal of Cosmetic Dermatology, 2021

• Tremella fuciformis extract demonstrates potential cutaneous benefits including skin antiaging, photoprotection, wound healing, and barrier protection based on in vitro and animal models.

  Archives of Dermatological Research, 2023

• Tremella fuciformis inhibits melanogenesis by decreasing melanin content and tyrosinase expression in B16F10 cells while promoting wound healing in human HaCaT keratinocytes and Detroit 551 fibroblasts.

  In Vivo, 2022

Why other serums fit skin with dark spots better

• Treatment with 14% ferulic acid and 12% l-ascorbic acid significantly reduced pigmentation and erythema while improving hydration and elasticity in 20 women with photoaged skin, with neither acid proving definitively more effective overall though ascorbic acid showed slightly greater skin lightening.

  Dermatologic Therapy, 2022

Ingredients

Water, Dimethicone, Niacinamide, Glycerin, Panthenol, Palmitoyl Pentapeptide-4, Tremella Fuciformis Sporocarp Extract, Hydroxyacetophenone, C13-14 Isoparaffin, Laureth-4, Polysorbate 20, Laureth-7, Disodium Edta, Polyacrylamide, Dimethicone Crosspolymer, Phenoxyethanol

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.