Isntree Hyper Niacinamide 20 Serum vs The Inkey List 10% Azelaic Acid Serum for Redness Relief

Isntree

The Inkey List

A serum built around Niacinamide and Alpha arbutin, for hydration and brightening.

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

Serum

30 ingredients

17 ingredients

Brand price

Not recorded · brand's site

Brand price

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

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At a Glance

Every check both products could be assessed on comes out the same. Tap any answer to see why.

Face oil1
An oil formulated to be used on the face.
Oenothera Biennis Flower Extract
Alpha arbutin1
A gentler glycosylated relative of hydroquinone.
Arbutin
Zinc salt (sebum/soothing)1
Zinc salts, used for sebum control and soothing.
Zinc PCA
Hyaluronic acid3
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Hyaluronic Acid, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer

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

Hydrating12
Boosts hydration and relieves dry, tight skin.
Butylene Glycol, Dipotassium Glycyrrhizate, Glycerin, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Propanediol, Pueraria Lobata Root Extract, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Sodium PCA, Zinc PCA
Barrier Repair2
Strengthens and restores the skin's natural barrier.
Glycerin, Niacinamide
Reduces Irritation2
Eases discomfort and supports skin resilience.
Dipotassium Glycyrrhizate, Zinc PCA
Redness Reducing1
Soothes visible redness and calms irritation.
Niacinamide

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

May Worsen Seborrheic Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Acetylated Hyaluronate
May Worsen Oily Skin1
May increase shine or excess oil.
Oenothera Biennis Flower Extract

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

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
Dipropylene Glycol
Perfuming
0-1 / —
Methylpropanediol
Solvent
0-1 / —
Propanediol (in both products)
Viscosity Controlling
0-1 / —
- Hydrating
Arbutin
Antioxidant
- Alpha arbutin
- Brightening
- Dark Spots
Glycerin (in both products)
Humectant
0 / 0
- Possibly animal-derived
- Hydrating
Zinc PCA
Humectant
- Zinc salt (sebum/soothing)
- Acne Fighting
- Oil Control
- Reduces Irritation
Sodium PCA
Humectant
0 / 0
- Hydrating
Portulaca Oleracea Extract
Skin Conditioning

Aqua
Solvent
0 / —
Azelaic Acid
Buffering
- Azelaic acid
- Acne Fighting
- Dark Spots
- Even Tone
- Redness Reducing
Propanediol (in both products)
Viscosity Controlling
0-1 / —
- Hydrating
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion Stabilising
Phenoxyethanol
Preservative
0 / —
Acacia Senegal Gum
Fragrance
Xanthan Gum
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

These ingredients are found in both products.

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

Propanediol
Solvent, Viscosity Controlling
Propanediol is the organic compound that conforms to the formula
Learn more about Propanediol →
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 →