21% Red Succinic Acid Cleansing Booster Serum
Seoul 1988 Boosting Serum: Collagen Complex 7 + Red Ginseng

Medicube

21% Red Succinic Acid Cleansing Booster Serum

K-Secret

Seoul 1988 Boosting Serum: Collagen Complex 7 + Red Ginseng

A serum built around AHA and Lactic acid, for hydration and barrier repair.

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

Serum
Serum
36 ingredients
41 ingredients

Brand price

USD 20.00 · checked 26 Sept 2026 · brand's site

Brand price

USD 22.00 · checked 8 Oct 2026 · brand's site

No retailer listed yet
No retailer listed yet
Brand from South Korea
Brand country not recorded

At a Glance

They come out differently on Fragrance-free, Alcohol-free and Pore-clogger-free; those rows are shaded. Tap any answer to see why.

Key Ingredients

  • Panthenol (provitamin B5)1

    Provitamin B5 — a humectant and soother.

    Panthenol

  • AHA2

    Alpha hydroxy acids — water-soluble chemical exfoliants.

    Glycolic Acid, Lactic Acid

  • BHA1

    Beta hydroxy acid — oil-soluble, so it works inside the pore.

    Salicylic Acid

  • Glycolic acid1

    The smallest AHA, and so the most penetrating.

    Glycolic Acid

  • Ceramide1

    Skin-identical lipids that hold the barrier together.

    Ceramide NP

  • Face oil1

    An oil formulated to be used on the face.

    Squalane

  • Vitamin E1

    Tocopherols — fat-soluble antioxidants.

    Tocopherol

  • 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

  • Lactic Acid

    Humectant

    • AHA
    • Lactic acid
    • Brightening
    • Exfoliating
    • Hydrating
    • Smoothing

  • Alcohol

    Fragrance

    0 / —

    • Denatured alcohol
    • May Worsen Dryness
    • May Worsen Eczema
    • May Worsen Irritation
    • May Worsen Rosacea

  • Glycerin (in both products)

    Humectant

    0 / 0

    • Possibly animal-derived
    • Hydrating

  • Dipropylene Glycol

    Perfuming

    0-1 / —

  • Glycereth-26 (in both products)

    Humectant

    0 / 0

  • Methylpropanediol (in both products)

    Solvent

    0-1 / —

  • Sorbeth-30 Tetraoleate

    Emulsifying

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

  • Tromethamine (in both products)

    Buffering

    0 / —

  • Butylene Glycol (in both products)

    Humectant

    1 / 0

    • Hydrating

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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