OSKIA Isotonic Hydra Serum

OSKIA Isotonic Hydra Serum — Biomimetic Hydration That Teaches Skin to Hydrate Itself CategorySerumSkin TypeAll Skin TypesPrimary Concern(s)Hydration, Barrier Repair, Redness/Sensitivity, DullnessTextureWeightless isotonic serumWhen to UseBoth — apply to cleansed skin before moisturiser, AM and PMSize30mlFree FromPetrochemical-free · Artificial fragrance-free · Artificial colour-free · Carcinogen-free · Paraben-free · No SLS · No phthalates · No animal testing Product StoryDehydration isn't just a surface problem — it's a cellular one, and OSKIA's Isotonic Hydra Serum addresses it at the source. Rather than simply depositing moisture topically, its proprietary Biomimetic Hydra-Complex works on three biological levels: supplying the precursors for hyaluronic acid synthesis, inhibiting enzymatic HA degradation, and directly stimulating cellular HA production — clinically proven to increase skin hydration by up to 30% in four weeks. Weightless and instantly absorbed, it leaves skin visibly dewy, fortified against environmental stress, and quietly, deeply calm. Active Botanical & Hero Ingredients IngredientINCI NameConcentrationFunctionSkin Benefit Hyaluronic AcidSodium HyaluronateHighHumectantBinds up to 1000x its weight in water; delivers immediate and sustained surface plumping Polyglutamic AcidPolyglutamic AcidHighHumectant / Film-formerLarger molecular weight than HA; forms a moisture-locking film on skin surface to prevent TEWL GlycerinGlycerinHighHumectantDraws atmospheric moisture into the stratum corneum for rapid, sustained hydration NiacinamideNiacinamideMidMulti-functional activeSupports endogenous ceramide synthesis, stimulates collagen and fibroblast production, evens skin tone Oat CeramidesAvena Sativa (Oat) Kernel Extract / CeramidesMidLipid replenisher / Barrier agentReplenishes intercellular lipid matrix; reinforces skin barrier and reduces TEWL Pro-Vitamin B5PanthenolMidHumectant / Soothing agentPenetrates to the dermis; attracts moisture, strengthens barrier function, and calms irritation Encapsulated Glacier WaterAqua (encapsulated)MidHydration delivery vehicleTime-releases mineral-rich water for sustained 24-hour hydration ElectrolytesSodium, Potassium, Magnesium, Calcium salts (est.)MidOsmolyte / MineraliserRebalances skin's ionic environment; supports cellular hydration homeostasis Biomimetic Hydra-Complex (Amino Acids)Arginine, Serine, Glycine et al. (est.)MidHA precursor / Biosynthesis stimulatorProvides structural building blocks for endogenous hyaluronic acid manufacture Pentapeptide P5Pentapeptide-4 / -18 (est.)LowSignalling peptideWorks synergistically to calm inflammation and reduce skin hyper-reactivity MSMDimethyl SulfoneLowAnti-inflammatory / AntioxidantReduces oxidative stress; supports collagen cross-linking and skin calming BisabololAlpha-BisabololLowSoothing agentInhibits inflammatory mediators; enhances ingredient penetration and reduces redness Horse ChestnutAesculus Hippocastanum Seed ExtractTraceAntioxidant / Calming agentContains aescin; reduces vascular permeability and visible redness; anti-hyaluronidase activity How To UseShake before use. Apply after cleansing, morning and evening, or when skin is in need of extra hydration and comfort. Ideal post-treatment. Ideal For Those with dehydrated, sensitised or compromised skin needing rapid moisture replenishment Anyone looking for a post-treatment or post-procedure serum that rehydrates and rebalances skin immediately All skin types, including reactive, wanting fast-absorbing hydration and barrier comfort Key Attributes isotonic-formula hydrating-serum post-treatment sodium-pca hyaluronic-acid lightweight-serum skin-rebalancing