Paula's Choice
Niacinamide 20% TreatmentRejuran
Pore Tightening AmpouleA serum built around Niacinamide and Vitamin C derivative, for barrier repair and hydration.
A serum built around Niacinamide and Hyaluronic acid, for hydration and barrier repair.
Brand price
USD 59.00 · checked 8 Oct 2026 · brand's site
Brand price
USD 42.00 · checked 28 Sept 2026 · brand's site
At a Glance
They come out differently on Fragrance-free; that row is shaded. Tap any answer to see why.
Key Ingredients
Hyaluronic acid2
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Benefits
Hydrating6
Boosts hydration and relieves dry, tight skin.
Acetyl Glucosamine, Butylene Glycol, Camellia Sinensis Leaf Extract, Glycerin, Panthenol, Propanediol
Barrier Repair9
Strengthens and restores the skin's natural barrier.
Allantoin, Boerhavia Diffusa Root Extract, Camellia Japonica Flower Extract, Camellia Sinensis Leaf Extract, Glycerin, Glycyrrhiza Glabra Root Extract, Lecithin, Niacinamide, Panthenol
Reduces Irritation4
Eases discomfort and supports skin resilience.
Allantoin, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root Extract, Panthenol
Redness Reducing3
Soothes visible redness and calms irritation.
Hydrating7
Boosts hydration and relieves dry, tight skin.
Butylene Glycol, Glycereth-26, Glycerin, Hyaluronic Acid, Panthenol, PEG-8, Sodium Hyaluronate
Barrier Repair7
Strengthens and restores the skin's natural barrier.
Allantoin, Glycerin, Glycyrrhiza Glabra Root Extract, Niacinamide, Panthenol, Vaccinium Angustifolium Fruit Extract, Yeast Extract
Reduces Irritation5
Eases discomfort and supports skin resilience.
Allantoin, Glycyrrhiza Glabra Root Extract, Panthenol, Salix Alba Bark Extract, Vaccinium Angustifolium Fruit Extract
Redness Reducing5
Soothes visible redness and calms irritation.
Allantoin, Glycyrrhiza Glabra Root Extract, Niacinamide, Salix Alba Bark Extract, Vaccinium Angustifolium Fruit Extract
Concerns
May Worsen Seborrheic Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
May Worsen Seborrheic Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Polysorbate 20
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
Skin Conditioning
- Fatty alcohols (Malassezia)
- Dark Spots
- Hydrating
- May Worsen Seborrheic Dermatitis
Glycyrrhiza Glabra Root Extract (in both products)
Emollient
- Brightening
- Redness Reducing
- Reduces Irritation
Skin Conditioning
Skin Conditioning
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
Skin Conditioning
Skin Conditioning
Skin Conditioning
Vaccinium Angustifolium Fruit Extract
Skin Protecting
Glycyrrhiza Glabra Root Extract (in both products)
Emollient
- Brightening
- Redness Reducing
- Reduces Irritation
Calendula Officinalis Flower Extract
Skin Conditioning
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.
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 →Glycyrrhiza Glabra Root Extract
Bleaching, Perfuming, Skin Conditioning, Emollient, Smoothing, Soothing
Glycyrrhiza Glabra Root Extract is an extract of the roots of the Licorice, Glycyrrhiza glabra L., Leguminosae
Learn more about Glycyrrhiza Glabra Root 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 →Xanthan Gum
Binding, Emulsion Stabilising, Gel Forming, Skin Conditioning, Cleansing, Emulsifying, Viscosity Controlling
Xanthan gum
Learn more about Xanthan Gum →Ethylhexylglycerin
Deodorant, Skin Conditioning
Ethylhexylglycerin is the organic compound that conforms to the formula
Learn more about Ethylhexylglycerin →
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