Dr.Althea
Gentle Vitamin C SerumArencia
Vitamin C Booster ShotA serum built around Niacinamide and Vitamin C derivative, for barrier repair and hydration.
A serum built around Vitamin C derivative and Vitamin C, for barrier repair and smoothing.
Brand price
USD 23.90 · 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 Pore-clogger-free and Cruelty-free; those rows are shaded. Tap any answer to see why.

Key Ingredients

Vitamin C derivative (stable)3
Stable derivatives of ascorbic acid.
3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Sodium Ascorbyl Phosphate

Benefits

Hydrating3
Boosts hydration and relieves dry, tight skin.
Barrier Repair4
Strengthens and restores the skin's natural barrier.
Allantoin, Caprylic/Capric Triglyceride, Caprylyl Glycol, Niacinamide
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 Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Castor Oil/Ipdi Copolymer
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

Water (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
1,2-Hexanediol (in both products)
Skin Conditioning
Perfuming
Film Forming
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Acrylates/C10-30 Alkyl Acrylate Crosspolymer (in both products)
Emulsion Stabilising
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
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.
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 →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 →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 →Xanthan Gum
Binding, Emulsion Stabilising, Gel Forming, Skin Conditioning, Cleansing, Emulsifying, Viscosity Controlling
Xanthan gum
Learn more about Xanthan Gum →3-O-Ethyl Ascorbic Acid
Skin Conditioning
3-O-Ethyl Ascorbic Acid is a vitamin C derivative.
Learn more about 3-O-Ethyl Ascorbic Acid →Adenosine
Skin Conditioning
6-Amino-9-beta-D-ribofuranosyl-9H-purine
Learn more about Adenosine →Allantoin
Skin Conditioning, Skin Protecting, Soothing
Urea, (2,5-dioxo-4-imidazolidinyl)-
Learn more about Allantoin →Ethylhexylglycerin
Deodorant, Skin Conditioning
Ethylhexylglycerin is the organic compound that conforms to the formula
Learn more about Ethylhexylglycerin →
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