Kate Somerville Peptide K8 Power Cream for mature 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

• A multi-modal methodology combining MALDI-MSI, in vivo RCM, echography, and histology revealed age-related decreases in extracellular matrix and epidermal-dermal junction proteins and undulation depth, while a blend of palmitoyl oligopeptide and palmitoyl tetrapeptide-7 improved subepidermal low-echogenic band thickness, density, and extracellular matrix structure compared to placebo.

  Journal of Cosmetic Dermatology, 2015

• Chronomodulated daytime application of baicalin and nighttime application of palmitoyl tripeptide-1 synergistically improved skin luminance by 16.29%, nasolabial fold depth by -36.35%, and firmness by 24.35% in 30 female participants.

  Journal of Cosmetic Dermatology, 2026

• Topical application of an emollient emulsion containing 15.0% caprylic/capric triglyceride doubled the amount of urocanic acid isomers and increased skin hydration with reduced transepidermal water loss in healthy subjects, though it did not prevent ultraviolet-induced urocanic acid isomerization.

  Life, 2023

• Hyaluronic acid extracts are safe and efficacious products for skin repair when used in tissue regeneration alone or in combination with herbal or Western medicine.

  Journal of Pharmacy & Pharmaceutical Sciences, 2015

• 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

• Unencapsulated cold-pressed industrial hemp seed oil at 0.12 mg/mL accelerated wound healing and increased normal human dermal fibroblast cell proliferation by 72% at 48 hours compared to baseline, though microencapsulation reduced this biological activity.

  Journal of Oleo Science, 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

Ingredients

Water, Stearic Acid, Cetearyl Alcohol, Ceteareth-20, Glycerin, Isopropyl Myristate, Isocetyl Stearoyl Stearate, Dimethicone, Cyclopentasiloxane, C12-15 Alkyl Benzoate, Caprylic Capric Triglyceride, Orbignya Oleifera Seed Oil, Cannabis Sativa Seed Oil, Squalane, Cholesterol, Urea, Sodium Pca, Macadamia Ternifolia Seed Oil, Jojoba Seed Oil, Silk Powder, Tribehenin, Triethanolamine, Xanthan Gum, Butylene Glycol, Tocopheryl Acetate, Allantoin, Trehalose, Grapefruit Peel Oil, Ascorbyl Palmitate, Ceramide 2, Peg-10 Rapeseed Sterol, Triacetin, Copper Pca, Polyquaternium-51, Sodium Hyaluronate, Palmitoyl Oligopeptide, Disodium Edta, Citric Acid, Sodium Benzoate, Potassium Sorbate, Chlorphenesin, Parfum, Hexyl Cinnamal, Butylphenyl Methyl Propional, Limonene

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.