Paula's Choice
10% Niacinamide BoosterA serum built around Niacinamide and Hyaluronic acid, for hydration and barrier repair.
A serum built around Niacinamide and Vitamin C derivative, for hydration and barrier repair.
Brand price
USD 18.20 · checked 26 Sept 2026 · brand's site
Brand price
USD 53.00 · checked 8 Oct 2026 · brand's site
At a Glance
They come out differently on Fragrance-free, EU-allergen-free and Pore-clogger-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Hyaluronic acid3
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Hyaluronic Acid, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer
Benefits
Hydrating15
Boosts hydration and relieves dry, tight skin.
Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Butylene Glycol, Collagen Water, Glycereth-26, Glycerin, Hyaluronic Acid, Hydrolyzed Glycosaminoglycans, Hydrolyzed Hyaluronic Acid, Inositol, Propanediol, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Tocopherol, Trehalose
Barrier Repair8
Strengthens and restores the skin's natural barrier.
Caprylyl Glycol, Glycerin, Lecithin, Niacinamide, Octyldodecanol, Resveratrol, Tocopherol, Tripeptide-1
Hydrating7
Boosts hydration and relieves dry, tight skin.
Acetyl Glucosamine, Beta-Glucan, Butylene Glycol, Dipotassium Glycyrrhizate, Glycerin, Panthenol, Sodium Hyaluronate
Barrier Repair7
Strengthens and restores the skin's natural barrier.
Allantoin, Boerhavia Diffusa Root Extract, Caprylyl Glycol, Glycerin, Glycyrrhiza Glabra Root Extract, Niacinamide, Panthenol
Reduces Irritation5
Eases discomfort and supports skin resilience.
Allantoin, Beta-Glucan, Dipotassium Glycyrrhizate, Glycyrrhiza Glabra Root Extract, Panthenol
Redness Reducing3
Soothes visible redness and calms irritation.
Concerns
May Worsen Seborrheic Dermatitis14
May feed the yeast involved in seborrheic dermatitis.
Acetyl Hexapeptide-1, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Hydrogenated Lecithin, Lecithin, Octyldodecanol, Octyldodeceth-16, Palmitoyl Pentapeptide-4, Palmitoyl Tetrapeptide-7, PEG-240/HDI Copolymer Bis-Decyltetradeceth-20 Ether, Polyacrylate Crosspolymer-6, Polyglyceryl-10 Oleate, Polysorbate 20, Potassium Laurate
May Worsen Irritation2
May cause stinging, redness or sensitivity.
May Worsen Seborrheic Dermatitis3
May feed the yeast involved in seborrheic dermatitis.
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
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
Skin Conditioning
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Boerhavia Diffusa Root Extract
Skin Protecting
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 →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 →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 →Ethylhexylglycerin
Deodorant, Skin Conditioning
Ethylhexylglycerin is the organic compound that conforms to the formula
Learn more about Ethylhexylglycerin →Polysorbate 20
Cleansing, Emulsifying
Polysorbate 20 isn't fungal acne safe.
Learn more about Polysorbate 20 →Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →Caprylyl Glycol
Deodorant, Hair Conditioning, Skin Conditioning, Emollient
Caprylyl Glycol is the diol that conforms to the formula
Learn more about Caprylyl Glycol →
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