15% Niacinamide Purity Serum
Moisture Treatment Ampoule

Dr.Althea

15% Niacinamide Purity Serum

Rejuran

Moisture Treatment Ampoule

A serum built around Niacinamide and Zinc salt, for hydration and barrier repair.

A serum built around Hyaluronic acid and Niacinamide, for barrier repair and hydration.

Serum
Serum
19 ingredients
28 ingredients

Brand price

USD 23.90 · checked 26 Sept 2026 · brand's site

Brand price

USD 39.00 · checked 28 Sept 2026 · brand's site

No retailer listed yet
No retailer listed yet
Brand from South Korea
Brand from South Korea

At a Glance

They come out differently on Vegan and Cruelty-free; those rows are shaded. Tap any answer to see why.

Key Ingredients

  • Vitamin E1

    Tocopherols — fat-soluble antioxidants.

    Tocopherol

  • Zinc salt (sebum/soothing)1

    Zinc salts, used for sebum control and soothing.

    Zinc PCA

  • Niacinamide1

    Vitamin B3 — supports the barrier and evens tone.

    Niacinamide

  • Ceramide1

    Skin-identical lipids that hold the barrier together.

    Ceramide NP

  • Face oil1

    An oil formulated to be used on the face.

    Squalane

  • Colloidal oatmeal1

    Finely milled oat — an FDA-recognised skin protectant.

    Avena Sativa Kernel Extract

  • Hyaluronic acid1

    Hyaluronic acid and its salts; a humectant that binds water to the skin.

    Sodium Hyaluronate

Benefits

Concerns

Ingredients Side-by-side

Show highlights for:

  • Water (in both products)

    Skin Conditioning

  • Pentylene Glycol (in both products)

    Skin Conditioning

    0-1 / —

  • Niacinamide (in both products)

    Smoothing

    0 / —

    • Niacinamide
    • Acne Fighting
    • Barrier Repair
    • Brightening
    • Dark Spots
    • Even Tone
    • Oil Control
    • Pore Refining
    • Redness Reducing

  • Butylene Glycol (in both products)

    Humectant

    1 / 0

    • Hydrating

  • 1,2-Hexanediol (in both products)

    Skin Conditioning

  • Glycerin (in both products)

    Humectant

    0 / 0

    • Possibly animal-derived
    • Hydrating

  • Polyglyceryl-10 Laurate

    Emulsifying

    • Fatty esters (glyceryl stearate, PEG-100 stearate)
    • May Worsen Seborrheic Dermatitis

  • Trehalose

    Humectant

    0-1 / —

    • Hydrating

  • Xanthan Gum (in both products)

    Cleansing

    0-1 / —

  • Ethylhexylglycerin (in both products)

    Skin Conditioning

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

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