Medicube
Deep Vitamin C Capsule SerumArencia
Vitamin C Booster ShotA serum built around Niacinamide and PHA, for barrier repair and hydration.
A serum built around Vitamin C derivative and Vitamin C, for barrier repair and smoothing.
Brand price
USD 24.00 · checked 26 Sept 2026 · brand's site
Brand price
USD 14.90 · checked 26 Sept 2026 · brand's site
At a Glance
They come out differently on Fragrance-free, Silicone-free, Oil-free and Cruelty-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Vitamin C derivative (stable)5
Stable derivatives of ascorbic acid.
3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Ascorbyl Tetraisopalmitate, Magnesium Ascorbyl Phosphate, Sodium Ascorbyl Phosphate
Vitamin C derivative (stable)3
Stable derivatives of ascorbic acid.
3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Sodium Ascorbyl Phosphate
Benefits
Hydrating11
Boosts hydration and relieves dry, tight skin.
Caprylic/Capric Triglyceride, Gluconolactone, Glycereth-26, Glycerin, Helianthus Annuus Seed Oil, Hydrolyzed Hyaluronic Acid, Panthenol, Propanediol, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Tocopherol
Barrier Repair14
Strengthens and restores the skin's natural barrier.
Allantoin, Ascorbyl Tetraisopalmitate, Caprylic/Capric Triglyceride, Cholesterol, Coriandrum Sativum Fruit Oil, Glycerin, Glycine Max Oil, Helianthus Annuus Seed Oil, Isononyl Isononanoate, Litsea Cubeba Fruit Oil, Niacinamide, Olea Europaea Fruit Oil, Panthenol, Tocopherol
Hydrating5
Boosts hydration and relieves dry, tight skin.
Butylene Glycol, Caprylic/Capric Triglyceride, Glycerin, Panthenol, Tocopherol
Barrier Repair10
Strengthens and restores the skin's natural barrier.
Allantoin, Caprylic/Capric Triglyceride, Cetearyl Olivate, Cetyl Ethylhexanoate, Diisostearyl Malate, Glycerin, Niacinamide, Panthenol, Sodium Polyacrylate, Tocopherol
Concerns
May Worsen Seborrheic Dermatitis14
May feed the yeast involved in seborrheic dermatitis.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ascorbyl Tetraisopalmitate, C12-14 Alketh-12, Castor Oil/Ipdi Copolymer, Dextrin Palmitate, Dibutyl Lauroyl Glutamide, Glycine Max Oil, Helianthus Annuus Seed Oil, Hydrogenated Lecithin, Hydrogenated Phosphatidylcholine, Octyldodeceth-16, Olea Europaea Fruit Oil, Polyglyceryl-10 Laurate, Sodium Acetylated Hyaluronate
May Worsen Keratosis Pilaris2
May clog follicles or strip skin prone to keratosis pilaris.
May Worsen Oily Skin3
May increase shine or excess oil.
Glycine Max Oil, Helianthus Annuus Seed Oil, Olea Europaea Fruit Oil
May Worsen Seborrheic Dermatitis6
May feed the yeast involved in seborrheic dermatitis.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Cetearyl Olivate, Cetyl Ethylhexanoate, Diisostearyl Malate, Polyglyceryl-3 Methylglucose Distearate, Sorbitan Olivate
Ingredients Side-by-side
Skin Conditioning
Niacinamide (in both products)
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Water (in both products)
Skin Conditioning
1,2-Hexanediol (in both products)
Skin Conditioning
Emollient
Water (in both products)
Skin Conditioning
3-O-Ethyl Ascorbic Acid (in both products)
Skin Conditioning
- Vitamin C
- Vitamin C derivative (stable)
- Antioxidant
- Brightening
- Dark Spots
1,2-Hexanediol (in both products)
Skin Conditioning
Niacinamide (in both products)
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Emollient
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Emollient
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Niacinamide
Smoothing
Niacinamide is niacinamide.
Learn more about Niacinamide →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 →Water
Antiplaque, Skin Conditioning, Solvent
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
Learn more about Water →1,2-Hexanediol
Skin Conditioning, Solvent
We don't have a description for 1,2-Hexanediol yet.
Learn more about 1,2-Hexanediol →Caprylic/Capric Triglyceride
Fragrance, Perfuming, Occlusive, Solvent
Caprylic/Capric Triglyceride is the mixed triester of glycerin and caprylic and capric acids.
Learn more about Caprylic/Capric Triglyceride →Arginine
Antistatic, Fragrance, Hair Conditioning, Skin Conditioning
L-Arginine
Learn more about Arginine →Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion Stabilising, Film Forming, Viscosity Controlling
Acrylates/C10-30 Alkyl Acrylate Crosspolymer isn't fungal acne safe.
Learn more about Acrylates/C10-30 Alkyl Acrylate Crosspolymer →Ethylhexylglycerin
Deodorant, Skin Conditioning
Ethylhexylglycerin is the organic compound that conforms to the formula
Learn more about Ethylhexylglycerin →Allantoin
Skin Conditioning, Skin Protecting, Soothing
Urea, (2,5-dioxo-4-imidazolidinyl)-
Learn more about Allantoin →Xanthan Gum
Binding, Emulsion Stabilising, Gel Forming, Skin Conditioning, Cleansing, Emulsifying, Viscosity Controlling
Xanthan gum
Learn more about Xanthan Gum →
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