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Sunday Riley

B3 Nice 10% Niacinamide Serum.

Sunday Riley B3 Nice 10% Niacinamide Serum
Serums

About this product

A lightweight, water-based serum containing 10% niacinamide, trans-resveratrol, and squalane, designed to help balance oil, reduce visible pores, and even skin tone.

Best for

Oily skinAcne-prone skin
Serums

The Guru Index verdict

75%

Approved

✓Approved · 75%
2Reviewers
1Approved
1Mixed
0Skip

What the gurus are saying

The experts who tested it praise how quickly it absorbs and its effectiveness at calming redness and controlling excess oil without weighing skin down, making it a strong pick for oily or tolerant complexions. However, the 10% niacinamide concentration is quite high, so those with sensitive skin or rosacea may find it irritating and may want to ease off to a few nights a week rather than daily use. The gurus suggest applying it early in the routine, before moisturizer, so it can absorb fully.
Synthesized from 2 expert reviews

Key actives & flags

NiacinamideFragrance-freeAlcohol-free

Full ingredients

Water/​Eau/​Aqua, Niacinamide, Glycerin, Phenyl Trimethicone, Dimethyl Isosorbide, Octyldodecanol, Resveratrol, Diglucosyl Gallic Acid, Asiaticoside, Madecassoside, Epigallocatechin Gallatyl Glucoside, Boswellia Serrata Resin Extract, Curcuma Longa (Turmeric) Root Extract, Ocimum Basilicum (Basil) Flower/​Leaf Extract, Ocimum Sanctum Leaf Extract, Aloe Barbadensis Flower Extract, Solanum Melongena Fruit Extract, Coccinia Indica Fruit Extract, Betaine, Corallina Officinalis Extract, Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Benzotriazolyl Dodecyl P-Cresol, PEG-8, Tetrahydrodiferuloylmethane, Tetrahydrodemethoxydiferuloylmethane, Tetrahydrobisdemethoxydiferuloylmethane, Fruit Extract, Argania Spinosa Kernel Oil, Citrus Aurantium Dulcis (Orange) Peel Extract, Citrus Grandis (Grapefruit) Peel Extract, Citrus Tangerina (Tangerine) Peel Oil, Calendula Officinalis Flower Extract, Citrus Limon (Lemon) Peel Oil, Sodium Phytate, Hydroxyethyl Acrylate/​Sodium Acryloyldimethyl Taurate Copolymer, Polysorbate 60, Sorbitan Isostearate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

Where to buy

Every take, in full

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Approved only Skip only Mixed only Hide sponsored
Dr. Aleksandra Brown
Dr. Aleksandra Brown
105k subs · 4k devotees
~Mixed
"Sunday Riley B3 Nice 10% Niacinamide Serum is really nice. I finished the whole bottle myself, though it can be spicy if you have really sensitive skin. I couldn't tolerate it more than like three nights a week."
All 2 takes from Dr. Aleksandra Brown
Adult Acne in Your 40s? A Dermatologist Explains Perimenopause Breakouts
"This is a really lightweight, water-based serum designed to target excess oil, visible pores, and uneven skin tone. It helps balance your complexion without stripping or irritating. It's pretty good for daily use, but due to really high concentration, not everyone's going to be able to tolerate it. I did use this, I did finish the whole bottle, but I had to minimize my use to about three nights a week, and I did not really tolerate it with my tretinoin on top. So, this for me was not ideal. My skin is however very sensitive and I do have rosacea, but if you're somebody with oily tolerant skin, this is a really good one to add into your routine. The key ingredients are 10% niacinamide, trans-resveratrol, and squalane."
Best Anti-Aging Ingredients Ranked by a Dermatologist
"Sunday Riley B3 Nice 10% Niacinamide Serum is really nice. I finished the whole bottle myself, though it can be spicy if you have really sensitive skin. I couldn't tolerate it more than like three nights a week."
Caroline Hirons
Caroline Hirons
251k subs · 9k devotees
✓Approved
"What I like about this one is it's a water-based serum, so it goes into the skin quickly and if you have oily skin absolutely not a problem. It doesn't kind of weigh your skin down so you can keep adding on the other stuff. It's basically imperceptible, it disappears, and great for the summer. I have very fair skin so I always get diffuse redness, and it's my go-to. It really helps with my diffuse redness, that's surface redness. I recommend it for all age groups and all skin types. It was originally formulated for my daughter who has oily acne prone skin, but we're finding that a lot of our clients are reaching for it for redness, pore size, and because they've heard of niacinamide and want to try it. I'd put it at the beginning of the routine simply because it's a water-based serum. If you put it on after your moisturizer it's just not going to get in as easily."
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