Niacinamide 20% Treatment
The Real Cica Niacinamide AC Calming Serum

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

A serum built around Niacinamide and Centella asiatica, for hydration and soothing irritation.

Serum
Serum
25 ingredients
39 ingredients

Brand price

USD 59.00 · checked 8 Oct 2026 · brand's site

Brand price

USD 20.80 · checked 26 Sept 2026 · brand's site

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

At a Glance

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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

  • Niacinamide1

    Vitamin B3 — supports the barrier and evens tone.

    Niacinamide

  • Vitamin C1

    Vitamin C in any form: an antioxidant and brightener.

    Ascorbyl Glucoside

Benefits

Concerns

  • May Trigger Acne1

    Can clog pores or trigger breakouts.

    Tocopherol

  • May Worsen Seborrheic Dermatitis1

    May feed the yeast involved in seborrheic dermatitis.

    Sodium Acetylated Hyaluronate

  • May Worsen Keratosis Pilaris1

    May clog follicles or strip skin prone to keratosis pilaris.

    Tocopherol

  • May Worsen Irritation1

    May cause stinging, redness or sensitivity.

    Tocopherol

Ingredients Side-by-side

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Ingredients Explained

These ingredients are found in both products.

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

  • Water

    Antiplaque, Skin Conditioning, Solvent

    Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water

    Learn more about Water →
  • Niacinamide

    Smoothing

    Niacinamide is niacinamide.

    Learn more about Niacinamide →
  • 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 →
  • Portulaca Oleracea Extract

    Skin Conditioning

    Portulaca Oleracea Extract is an extract of the whole plant of the Purselane, Portulaca oleracea L., Portulacaceae

    Learn more about Portulaca Oleracea Extract →
  • Camellia Sinensis Leaf Extract

    Antimicrobial, Antioxidant, Astringent, Fragrance, Humectant, Oral Care, Skin Conditioning, Emollient, Skin Protecting, Tonic, UV Absorber

    Camellia Sinensis Leaf Extract is an extract of the leaves of the Tea, Camellia sinensis, Theaceae

    Learn more about Camellia Sinensis Leaf Extract →
  • Allantoin

    Skin Conditioning, Skin Protecting, Soothing

    Urea, (2,5-dioxo-4-imidazolidinyl)-

    Learn more about Allantoin →
  • Panthenol

    Antistatic, Hair Conditioning, Skin Conditioning

    Panthenol is panthenol (provitamin B5).

    Learn more about Panthenol →
  • Ethylhexylglycerin

    Deodorant, Skin Conditioning

    Ethylhexylglycerin is the organic compound that conforms to the formula

    Learn more about Ethylhexylglycerin →

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