Dr. Althea 345 Relief Serum – Korean calming serum PDRN Birch Sap Tea Tree Leaf Water Ceramide NP Niacinamide fragrance-free vegan non-comedogenic $22.50
Dr. Althea 345 Relief Serum texture – lightweight fast-absorbing watery serum sensitive acne-prone post-blemish skin daily use
Dr. Althea 345 Relief Serum key ingredients – birch sap tea tree water panthenol PDRN niacinamide ceramide NP madecassoside beta-glucan
Dr. Althea 345 Relief Serum PDRN Ceramide – bio-fermented biome PDRN Ceramide NP barrier rebuild acne-prone sensitive Korean vegan
Dr. Althea 345 Relief Serum calming complex – madecassoside centella asiatica resveratrol hydrolyzed HA redness post-blemish marks
Dr. Althea 345 Relief Serum routine – after toner step 6 serum pat absorb follow 345 Relief Cream step 9 fragrance-free vegan routine
Dr. Althea 345 Relief Serum + Cream – serum companion to 345 Relief Cream 154 reviews 4.8 stars complete 345 line calm hydrate barrier
Dr. Althea 345 Relief Serum – fragrance-free vegan non-comedogenic new Korean calming serum Olive Kollection K-beauty sensitive skin
Dr. Althea 345 Relief Serum – Korean calming serum PDRN Birch Sap Tea Tree Leaf Water Ceramide NP Niacinamide fragrance-free vegan non-comedogenic $22.50
Dr. Althea 345 Relief Serum texture – lightweight fast-absorbing watery serum sensitive acne-prone post-blemish skin daily use
Dr. Althea 345 Relief Serum key ingredients – birch sap tea tree water panthenol PDRN niacinamide ceramide NP madecassoside beta-glucan
Dr. Althea 345 Relief Serum PDRN Ceramide – bio-fermented biome PDRN Ceramide NP barrier rebuild acne-prone sensitive Korean vegan
Dr. Althea 345 Relief Serum calming complex – madecassoside centella asiatica resveratrol hydrolyzed HA redness post-blemish marks
Dr. Althea 345 Relief Serum routine – after toner step 6 serum pat absorb follow 345 Relief Cream step 9 fragrance-free vegan routine
Dr. Althea 345 Relief Serum + Cream – serum companion to 345 Relief Cream 154 reviews 4.8 stars complete 345 line calm hydrate barrier
Dr. Althea 345 Relief Serum – fragrance-free vegan non-comedogenic new Korean calming serum Olive Kollection K-beauty sensitive skin

Dr. Althea 345 Relief Serum

$22.50
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A Korean calming serum from Dr. Althea — the serum companion to the bestselling 345 Relief Cream. Same Calm + Hydrate + Barrier Care philosophy in a lightweight, fast-absorbing format. Birch Sap and Tea Tree Leaf Water form a dual calming base.

Bio-fermented biome PDRN + Ceramide NP rebuild the barrier. Full Centella TECA calms and soothes. For sensitive, acne-prone, and post-blemish skin. Non-comedogenic. Fragrance-free. Vegan.

  • Birch Sap + Tea Tree Leaf Water — Dual Calming Base — Birch Sap is naturally rich in minerals, amino acids, and vitamins that hydrate and soothe. Tea Tree Leaf Water delivers gentle calming without the dryness of concentrated tea tree oil. Two botanical waters as the formula base — calming from the first layer.
  • Panthenol + Niacinamide + Beta-Glucan — The 345 Core — Panthenol deeply hydrates and supports the barrier. Niacinamide brightens post-blemish marks and minimizes pores. Beta-Glucan calms and delivers deep moisture. The three actives that define the 345 Relief line — proven across the cream and mist.
  • Bio-Fermented Biome PDRN + Ceramide NP — Barrier Rebuild — Dr. Althea's PDRN is bio-fermented biome PDRN — not salmon-derived. Supports skin vitality and barrier strength. Ceramide NP replenishes barrier lipids depleted by acne or over-exfoliation. Together they rebuild the barrier from within. Vegan.
  • Full Centella TECA + Resveratrol + 4 HA Types — Calm + Hydrate — all four TECA compounds calm redness. Resveratrol provides antioxidant protection. Four forms of HA hydrate at different depths. 

After toner, apply evenly and pat gently until absorbed. AM and PM. Follow with 345 Relief Cream. Fragrance-free. Vegan.

More from Olive Kollection
Shop the full Dr. Althea collection, browse our serums and ampoules, or find more for sensitive skin.

Authentic Korean skincare at Olive Kollection since 2018 — free US shipping on orders $40+.

1. After cleansing and toner, apply an appropriate amount to the face. 2. Gently pat until fully absorbed. 3. Follow with moisturizer. Use morning and night.

Aqua (Water), Betula Platyphylla Japonica Juice, Propanediol, Melaleuca Alternifolia (Tea Tree) Leaf Water, Dipropylene Glycol, Butylene Glycol, Glycerin, Niacinamide, Panthenol, 1,2-Hexanediol, Caprylic/Capric Triglyceride, Hydrogenated Polydecene, C14-22 Alcohols, Hydroxyacetophenone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, C12-20 Alkyl Glucoside, Tromethamine, Glyceryl Caprylate, Ethylhexylglycerin, Xanthan Gum, Pentylene Glycol, Disodium EDTA, Caprylyl Glycol, Camellia Sinensis Leaf Water, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Sodium Hyaluronate, Poloxamer 407, Sodium Hyaluronate Crosspolymer, Hydrogenated Lecithin, Madecassoside, Pantothenic Acid, Polyglutamic Acid, Decyl Glucoside, Asiaticoside, Beta-Glucan, Asiatic Acid, Madecassic Acid, Sodium Phytate, Sodium DNA, Ceramide NP, Aluminum/Magnesium Hydroxide Stearate, Centella Asiatica Extract, Cholesterol, Lysolecithin, Phosphatidylcholine, Xylose, Hydroxypropyl Cyclodextrin, Tannic Acid, Resveratrol