Paula's Choice
10% Niacinamide BoosterA serum built around Retinoid and Vitamin C, for pollution defence and barrier repair.
A serum built around Niacinamide and Vitamin C derivative, for hydration and barrier repair.
Brand price
USD 21.99 · checked 8 Oct 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, Silicone-free and Pore-clogger-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Benefits
Hydrating6
Boosts hydration and relieves dry, tight skin.
Butylene Glycol, Dimethicone, Glycerin, Polyglycerin-10, Propanediol, Tocopherol
Barrier Repair8
Strengthens and restores the skin's natural barrier.
Allantoin, Caprylyl Glycol, Cetyl Dimethicone, Copper Gluconate, Dimethicone, Glycerin, Tocopherol, Zea Mays Starch
Reduces Irritation3
Eases discomfort and supports skin resilience.
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 Trigger Acne3
Can clog pores or trigger breakouts.
May Worsen Seborrheic Dermatitis5
May feed the yeast involved in seborrheic dermatitis.
Ascorbyl Palmitate, Octadecyl Di-T-Butyl-4-Hydroxyhydrocinnamate, Polyglyceryl-10 Laurate, Polysorbate 20, Sorbitan Oleate
May Worsen Keratosis Pilaris3
May clog follicles or strip skin prone to keratosis pilaris.
May Worsen Irritation6
May cause stinging, redness or sensitivity.
Farnesol, Fragrance, Linalyl Acetate, Tetramethyl Acetyloctahydronaphthalenes, Tocopherol, Trimethylbenzenepropanol
May Worsen Seborrheic Dermatitis3
May feed the yeast involved in seborrheic dermatitis.
Ingredients Side-by-side
Water (in both products)
Skin Conditioning
Skin Conditioning
Skin Conditioning
- Retinoid
- Acne Fighting
- Anti-Aging
- Dark Spots
- Firming
- Oil Control
- Pore Refining
- Smoothing
Water (in both products)
Skin Conditioning
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 →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 →Allantoin
Skin Conditioning, Skin Protecting, Soothing
Urea, (2,5-dioxo-4-imidazolidinyl)-
Learn more about Allantoin →Pentylene Glycol
Skin Conditioning, Solvent
1,2-Dihydroxypentane
Learn more about Pentylene Glycol →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 →Polysorbate 20
Cleansing, Emulsifying
Polysorbate 20 isn't fungal acne safe.
Learn more about Polysorbate 20 →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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