Arencia Deep Water Surge Overnight Serum 50g

Wake up to your best skin — every single morning. The Arencia Deep Water Surge Overnight Serum is a rich, nourishing night serum formulated with a 30% Deep Hydra Complex to intensely hydrate, calm, and support the skin's moisture barrier — ideal for dry, fatigued, or sensitive skin that needs overnight recovery , all housed in a generous 50g jar that makes every scoop feel like a genuine luxury treatment. This is the overnight serum that does the heavy lifting while you sleep — so you wake up to skin that is visibly plumper, calmer, and more resilient than when you went to bed.

Its advanced formula combines hyaluronic acid, PDRN, and ceramides to support the skin's natural moisture barrier — a lightweight formula that rapidly absorbs without leaving any sticky or greasy residue despite its rich, scoopable jar texture. The result is deep structural hydration that lasts well beyond morning, not just a temporary surface plump that fades by noon.

Why it works:

30% Deep Hydra Complex — a potent blend of 8 types of hyaluronic acids, Rice Lees Extract, and moisture-retaining agents that penetrate deeply to deliver lasting hydration and plumpness— the most comprehensive HA system in the Arencia line, delivering moisture at every depth simultaneously from surface sealing to deep dermal replenishment

8 types of Hyaluronic Acid (Sodium Hyaluronate, Potassium Hyaluronate, Sodium Hyaluronate Crosspolymer, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate + additional forms) — a complete multi-molecular weight HA system covering every layer of the skin for overnight hydration that is still working by the following evening

Hydrolyzed DNA (Phyto PDRN) — supports natural regeneration and soothes tired or delicate skin overnight — a plant-derived polydeoxyribonucleotide that delivers the regenerative and barrier-repair benefits of clinical PDRN in a 100% vegan-compatible form

Ceramide NP &Glycosphingolipids — help fortify the skin barrier and defend against overnight moisture loss— the essential lipid complex that seals every active ingredient in place and prevents transepidermal water loss during the hours the skin is most vulnerable to dehydration

Copper Tripeptide-1 + 5-Peptide Complex (Acetyl Hexapeptide-8, Palmitoyl Pentapeptide-4, Acetyl Hexapeptide-3/Argireline, additional) — improves elasticity, firms the skin, and smooths fine lines for a refreshed look— a complete multi-peptide anti-ageing complex that works with the overnight recovery window to stimulate collagen synthesis and improve skin firmness while you sleep

Panthenol (Vitamin B5) — deeply conditions and maintains the skin barrier,&reducing tightness and supporting natural healing throughout the night

Rice Lees Extract (Makgeolli) — a fermented rice wine byproduct rich in brightening Kojic Acid and Galactomyces compounds that improve radiance, even skin tone, and support elasticity — delivering a subtle glow improvement alongside the deep hydration

How to use:

As the final step of your evening skincare routine, layer this jar serum over your toner and any droplet serums of your choice , scooping a generous amount and pressing gently into the skin until absorbed. Follow with your regular moisturiser for an extra occlusive seal. For extra care, apply a sheet mask 2–3 times a week on top to boost glow and reset stressed skin.

Use nightly for best results.

Suitable for: All skin types · Dry, dehydrated; tight skin · Sensitive reactive skin · Barrier-damaged skin · Fatigued & stressed skin · Anti-ageing concerns · Fragrance-free · Vegan · Made in Korea 🇰🇷

Why Seoulma recommends it:

The overnight window is the most underutilised period in most people's skincare routines — and the Arencia Deep Water Surge Overnight Serum is built specifically to change that. During sleep, the skin's cell regeneration rate increases by up to three times compared to daytime, transepidermal water loss rises significantly, and the skin's absorption capacity for active ingredients is at its highest. A lightweight daytime serum under SPF is not equipped to take advantage of that window. A rich, deeply concentrated overnight treatment is.

The 30% Deep Hydra Complex is the figure that sets this serum apart from every standard overnight moisturiser. Eight types of hyaluronic acid working simultaneously across different molecular weights means hydration is reaching every layer of the skin — from the outermost stratum corneum where surface dryness and flaking originates, to the deeper dermis where structural moisture loss contributes to fine lines and elasticity reduction. Most overnight products address the first layer. This serum addresses all of them at once, which is why the results feel fundamentally different from anything applied to the surface.

The peptide complex is also particularly well chosen for overnight use. Copper Tripeptide-1 is among the most studied wound-healing and collagen-stimulating peptides in cosmetic science. Palmitoyl Pentapeptide-4 signals the skin to produce more collagen and elastin. Acetyl Hexapeptide-8 relaxes micro-tension in expression lines. Overnight, when the skin is not being exposed to UV, pollution, or mechanical stress, these peptides can work without competition — and the compounding effect of applying them nightly within the 8-hour recovery window is one of the fastest ways to see visible firming and fine line improvements without clinical intervention.

The jar format also makes a practical difference. The 50g size provides three to four months of nightly use at a generous application — and the scoopable texture means you can use as much or as little as your skin needs on a given night. On difficult skin days — after travel, after sun exposure, after a new product reaction — apply more. On normal nights, a thin even layer is enough. That flexibility is exactly what makes this the overnight serum we recommend most often for customers who want one reliable product that adapts to whatever their skin needs.