L'Occitane Immortelle Overnight Reset Oil-in-Serum for dry sensitive skin

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Questions and answers

What the research says

• An all-natural anti-wrinkle emulsion serum containing Acmella oleracea extract demonstrated safe skin tolerability and reduced facial wrinkles in human volunteers after 2 weeks of application.

  International Journal of Cosmetic Science, 2021

• An Acmella oleracea extract-loaded glycolipid emulsion serum applied topically demonstrated safety with no ocular irritation or systemic dermal absorption, alongside significant improvements in facial skin hydration, smoothness, and reductions in roughness, scaliness, and wrinkles.

  International Journal of Cosmetic Science, 2025

• A novel formulation containing supramolecular retinol plus acmella oleracea extract significantly reduced dark circles by 13.8% in melanin index, decreased fine wrinkles, and increased skin firmness by 13.0% in 33 Chinese urban women after 6 weeks of use.

  Journal of Cosmetic Dermatology, 2022

• A night cream containing melatonin, carnosine, and Helichrysum italicum extract reduced oxidative stress ex vivo and improved hydration, reduced transepidermal water loss, decreased wrinkles and spots, and lowered skin reactivity in 117 individuals over up to 12 weeks of nightly use.

  Dermatology and Therapy, 2020

• Polypropylene non-woven fabric impregnated with H. italicum extract using ethanol as a cosolvent demonstrated significantly greater potential for skin protection compared to other investigated samples on artificially irritated human skin without causing irritation or redness.

  Journal of Ethnopharmacology, 2023

• Application of creams and emulgels containing immortelle extract and hemp oil increased skin hydration and reduced TEWL in 25 healthy volunteers compared to placebo samples and a non-treated control, with emulgels demonstrating enhanced herbal active delivery and better sensory properties than creams.

  Pharmaceutics, 2021

• Neryl acetate mediates a large part of Corsican Helichrysum italicum essential oil activity by upregulating genes involved in epidermal differentiation, skin barrier formation, and ceramide synthesis, leading to increased involucrin, total lipids, and ceramides in human skin explant models compared to the essential oil.

  PloS One, 2023

• Helichrysum italicum oil combined with electrospun nanofibers increased cell proliferation and viability while activating a molecular rejuvenation program in human skin stem cells and BJ fibroblasts exposed to UV stress compared to untreated controls.

  International Journal of Molecular Sciences, 2024

• The optimized squalane-based spilanthol emulsion achieved a maximum skin retention of 118.71 μg/g and restored skin hydroxyproline content to 23.99 μg/g, outperforming positive and negative groups due to high drug release and miscibility driven by weak Van der Waals interactions.

  AAPS PharmSciTech, 2019

• Treatment with methanolic extract of Acmella oleracea leaves exerted potent antioxidant, anti-inflammatory, antimicrobial, and wound healing effects in vitro by reducing inflammatory mediators, scavenging free radicals, inhibiting bacterial growth, and enhancing fibroblast migration without inducing cytotoxicity.

  Journal of Ethnopharmacology, 2025

• Cellulose films incorporating Acmella oleracea depigmented extract and Achyrocline satureioides essential oil increased anesthesia time and wound contraction in in vivo tests compared to positive controls EMLA and allantoin, while also increasing collagen synthesis and epidermal thickening.

  Evidence-based Complementary and Alternative Medicine, 2016

• 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

Ingredients

Water, Propanediol, Glycerin, Isononyl Isononanoate, Butylene Glycol, Pentylene Glycol, Dextrin Palmitate Ethylhexanoate, Limnanthes Alba Seed Oil, Helichrysum Italicum Oil Flower, Helichrysum Italicum Extract, Origanum Majorana Leaf Extract, Acmella Oleracea Extract, Helianthus Annuus Seed Oil Sunflower Seed Oil, Adenosine, Fructose, Carbomer, Maltodextrin, Sodium Hydroxide, Palmitic Acid, Disodium Edta, Cellulose Gum, Amodimethicone, Tocopherol, Chlorphenesin, Parfum, Ci 75130 Beta-Carotene

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.