La Roche-Posay Vitamin C12 Serum vs The Inkey List 10% Azelaic Acid Serum for Redness Relief

La Roche-Posay

Vitamin C12 Serum

The Inkey List

10% Azelaic Acid Serum for Redness Relief

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

A serum built around Azelaic acid, for pollution defence and hydration.

Serum

29 ingredients

17 ingredients

Brand price

USD 44.99 · checked 25 Sept 2026 · brand's site

Brand price

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

No retailer listed yet

Brand from France

Brand country not recorded

At a Glance

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

Key Ingredients

Vitamin E1
Tocopherols — fat-soluble antioxidants.
Tocopherol
Vitamin C (L-ascorbic acid)1
L-ascorbic acid, the unesterified form of vitamin C.
Ascorbic Acid
BHA1
Beta hydroxy acid — oil-soluble, so it works inside the pore.
Salicylic Acid
Salicylic acid1
The BHA used in acne treatment.
Salicylic Acid

Polysorbates (Tween emulsifiers)1
Polysorbate (Tween) emulsifiers.
Polysorbate 60
Azelaic acid1
Works on acne, redness and pigmentation at once.
Azelaic Acid

Benefits

Hydrating6
Boosts hydration and relieves dry, tight skin.
Dimethicone, Glycerin, Hydrolyzed Hyaluronic Acid, Propylene Glycol, Sodium Hyaluronate, Tocopherol
Barrier Repair8
Strengthens and restores the skin's natural barrier.
C13-14 Isoparaffin, Caprylyl Glycol, Cyclohexasiloxane, Dimethicone, Glycerin, Pentaerythrityl Tetraethylhexanoate, Propylene Glycol, Tocopherol
Anti-Aging2
Softens lines and helps skin look youthful.
Adenosine, Ascorbic Acid
Firming1
Supports elasticity and bounce.
Adenosine

Hydrating2
Boosts hydration and relieves dry, tight skin.
Glycerin, Propanediol
Barrier Repair2
Strengthens and restores the skin's natural barrier.
Allantoin, Glycerin
Reduces Irritation1
Eases discomfort and supports skin resilience.
Allantoin
Redness Reducing2
Soothes visible redness and calms irritation.
Allantoin, Azelaic Acid

Concerns

May Trigger Acne1
Can clog pores or trigger breakouts.
Tocopherol
May Worsen Seborrheic Dermatitis3
May feed the yeast involved in seborrheic dermatitis.
Acetyl Dipeptide-1 Cetyl Ester, Laureth-7, PEG-20 Methyl Glucose Sesquistearate
May Worsen Keratosis Pilaris1
May clog follicles or strip skin prone to keratosis pilaris.
Tocopherol
May Worsen Irritation3
May cause stinging, redness or sensitivity.
Alcohol Denat., Parfum, Tocopherol

May Trigger Acne1
Can clog pores or trigger breakouts.
Sorbitan Isostearate
May Worsen Seborrheic Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
Polysorbate 60, Sorbitan Isostearate
May Worsen Keratosis Pilaris1
May clog follicles or strip skin prone to keratosis pilaris.
Sorbitan Isostearate

Ingredients Side-by-side

Show highlights for:

Aqua (in both products)
Solvent
0 / —
Ascorbic Acid
Antioxidant
- Vitamin C
- Vitamin C (L-ascorbic acid)
- Anti-Aging
- Anti-Pollution
- Antioxidant
- Brightening
- Dark Spots
- Even Tone
Cyclohexasiloxane
Emollient
0-1 / —
- Silicones
Glycerin (in both products)
Humectant
0 / 0
- Possibly animal-derived
- Hydrating
Alcohol Denat.
Fragrance
0 / —
- Denatured alcohol
- May Worsen Dryness
- May Worsen Eczema
- May Worsen Irritation
- May Worsen Rosacea
Potassium Hydroxide
Buffering
0-1 / —
Polymethylsilsesquioxane
Opacifying
0-1 / —
- Silicones
Polysilicone-11
Film Forming
- Silicones
Dimethicone
Emollient
1 / 0
- Silicones
- Barrier Repair
- Hydrating
- Smoothing
Propylene Glycol
Humectant
0 / 0

Aqua (in both products)
Solvent
0 / —
Azelaic Acid
Buffering
- Azelaic acid
- Acne Fighting
- Dark Spots
- Even Tone
- Redness Reducing
Propanediol
Viscosity Controlling
0-1 / —
- Hydrating
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion Stabilising
Phenoxyethanol
Preservative
0 / —
Acacia Senegal Gum
Fragrance
Xanthan Gum (in both products)
Cleansing
0-1 / —
Allantoin
Skin Conditioning
0 / 0
- Reduces Irritation
- Smoothing
Glycerin (in both products)
Humectant
0 / 0
- Possibly animal-derived
- Hydrating
Ethylhexylglycerin
Skin Conditioning

Ingredients Explained

These ingredients are found in both products.

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

Aqua
Solvent
Water
Learn more about Aqua →
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 →
Xanthan Gum
Binding, Emulsion Stabilising, Gel Forming, Skin Conditioning, Cleansing, Emulsifying, Viscosity Controlling
Xanthan gum
Learn more about Xanthan Gum →