Vitamin Drop
10% Niacinamide Booster

Klairs

Vitamin Drop

Paula's Choice

10% Niacinamide Booster

A serum built around Vitamin C and Vitamin C, for hydration and barrier repair.

A serum built around Niacinamide and Vitamin C derivative, for hydration and barrier repair.

Serum
Serum
52 ingredients
27 ingredients

Brand price

Not recorded · brand's site

Brand price

USD 53.00 · checked 8 Oct 2026 · brand's site

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At a Glance

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

Key Ingredients

  • Vitamin C derivative (stable)1

    Stable derivatives of ascorbic acid.

    Ascorbyl Glucoside

  • Panthenol (provitamin B5)1

    Provitamin B5 — a humectant and soother.

    Panthenol

  • Polysorbates (Tween emulsifiers)1

    Polysorbate (Tween) emulsifiers.

    Polysorbate 20

  • AHA1

    Alpha hydroxy acids — water-soluble chemical exfoliants.

    Citric Acid

Benefits

Concerns

Ingredients Side-by-side

Show highlights for:

  • Water

    Skin Conditioning

  • Niacinamide

    Smoothing

    0 / —

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

  • Acetyl Glucosamine

    Skin Conditioning

    • Fatty alcohols (Malassezia)
    • Dark Spots
    • Hydrating
    • May Worsen Seborrheic Dermatitis

  • Ascorbyl Glucoside

    Antioxidant

    • Vitamin C
    • Vitamin C derivative (stable)
    • Antioxidant
    • Brightening
    • Dark Spots

  • Butylene Glycol (in both products)

    Humectant

    1 / 0

    • Hydrating

  • Phospholipids

    Skin Conditioning

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

  • Sodium Hyaluronate (in both products)

    Humectant

    0 / 0

    • Hyaluronic acid
    • Hydrating

  • Allantoin

    Skin Conditioning

    0 / 0

    • Reduces Irritation
    • Smoothing

  • Boerhavia Diffusa Root Extract

    Skin Protecting

  • Glycerin (in both products)

    Humectant

    0 / 0

    • Possibly animal-derived
    • Hydrating

Ingredients Explained

These ingredients are found in both products.

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

  • Butylene Glycol

    Fragrance, Humectant, Skin Conditioning, Solvent, Viscosity Controlling

    Butane-1,3-diol (CAS No. 107-88-0/ EC No. 203-529-7) (R)-(-)-butane-1,3-diol” (CAS No. 6290-03-5/ EC No. 228-532-0)

    Learn more about Butylene Glycol →

  • Glycerin

    Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care, Perfuming, Humectant, Skin Protecting, Solvent, Viscosity Controlling

    Glycerin may be plant, synthetic or animal depending on the supplier.

    Learn more about Glycerin →

  • Sodium Hyaluronate

    Humectant, Skin Conditioning

    Sodium Hyaluronate is a hyaluronic acid.

    Learn more about Sodium Hyaluronate →

  • Caprylyl Glycol

    Deodorant, Hair Conditioning, Skin Conditioning, Emollient

    Caprylyl Glycol is the diol that conforms to the formula

    Learn more about Caprylyl Glycol →

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