Dr.Althea 345 Relief Serum 30ml | Calming Barrier-Repair Serum for Sensitive & Post-Blemish Skin

Calm irritation and strengthen your skin barrier with Dr.Althea 345 Relief Serum, formulated with Birch Sap, PDRN, Centella Asiatica, and Ceramide NP. Shop authentic K-beauty at Seoulma Skincare.

For skin that's easily irritated, post-breakout, or simply overwhelmed by too many actives, the Dr.Althea 345 Relief Serum is the reset button your routine has been missing. This daily soothing serum is built to do three things in one lightweight step: calm visible irritation, deliver deep hydration, and reinforce a compromised skin barrier — making it a staple for sensitive, reactive, and acne-prone skin types alike.

At its core is a multi-layered Centella Asiatica (Cica) technology, combining Centella leaf water, Centella extract, and isolated Madecassoside for compounded soothing power, alongside barrier-supporting Ceramide NP to help skin hold onto moisture and resist future irritation. The formula is rounded out with Birch Sap and a 3D Hyal-TECA complex — a blend of multiple hyaluronic acid weights paired with TECA — for hydration that reaches both the surface and deeper layers of skin, along with Niacinamide to support a clearer, more even-looking tone and PDRN to aid the skin's natural recovery process. Tea Tree Leaf Water adds an extra layer of blemish-focused care, rounding out this deceptively simple, thoughtfully constructed formula.

The result is a fast-absorbing, silky-textured serum that layers invisibly under moisturizer, sinks in without stickiness or residue, and is non-comedogenic and sensitive-skin tested — free from artificial colors and fragrance, so it won't add fuel to already-inflamed skin.

Key Benefits

• Calms Visible Irritation — Multi-layered Centella Asiatica technology soothes redness and discomfort
• Strengthens the Skin Barrier — Ceramide NP helps rebuild and protect compromised skin
• Deep, Lasting Hydration — 3D Hyal-TECA complex hydrates at multiple skin layers without feeling heavy
• Supports Post-Blemish Recovery — PDRN and Tea Tree Leaf Water aid recovery and help fade the look of post-acne marks
• Gentle Enough for Daily Use — Non-comedogenic, fragrance-free, and sensitive-skin tested
• Lightweight, Non-Sticky Finish — Fast-absorbing texture that layers effortlessly under the rest of your routine

How to Use

Apply a small amount to clean, freshly toned skin, morning and night, before your moisturizer. For an extra soothing boost, pair it with the Dr.Althea 345 Relief Cream as your final step.

Why We Recommend It

We recommend this serum specifically for customers whose skin has been through it lately — post-breakout, post-active-overload, or just chronically reactive. It's one of the few serums we carry that treats "sensitive skin" as a barrier problem to solve rather than a limitation to work around: instead of stripping the routine down to almost nothing, it actively rebuilds the barrier while still delivering real hydration and mild blemish support. It's also a smart layering piece — gentle enough to sit underneath stronger actives (like your Dr. Melaxin TX line or Sungboon Editor ampoules) on days your skin needs a buffer, but effective enough to stand alone on its own on bad-skin days.