Sunday Riley B3 Nice 10% Niacinamide Serum: a Guru Score of 65%

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.

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~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 3 takes from Dr. Aleksandra Brown

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"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."

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"It's really lightweight water-based serum. It's designed to target excess oil. So this is the one that I specifically liked using in the morning or if I noticed more breakouts, I would use it more often. But I could not use it every single day. It claims to help improve size in the appearance of the pores or help uneven the skin tone. I did notice some of that though I don't think you can really change the size of your pores. It does balance the complexion without stripping or irritating. So it could be okay for somebody with a little bit more oily skin, but though I'm oily, I was more sensitive. And I could not use this every morning. It probably had something to do with the fact that I was using my retinoid, too. So retinoid makes your skin more prone to sensitivity from other ingredients. The key is to just when you notice that it's tingling, irritating, back off, skip a night or two, and then get back to it. I did like this niacinamide, but I don't know that I would recommend it to everyone. I also thought it was kind of pricey."

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"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."

No BS Beauty

89k subs

~Nay

"The Sunday Riley one definitely has a scent to me that smells like toilet bowl cleaner and I don't know why that's just what it smells like"

Nipun Kapur

408k subs

~Yay

"I have been loving the Sunday Riley B3 Nice niacinamide serum. It has niacinamide 10 and also resveratrol which is a fabulous antioxidant which also has great anti-aging benefits. If you're looking at something which is more of a hybrid formula with great ingredients to boost up your anti-aging efforts, I do recommend the one from Sunday Riley. This product is definitely not under 500 but it is very very effective. I love it and from an anti-aging perspective this is my first recommendation for you."

All 3 takes from Nipun Kapur

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"The new niacinamide serum that I'm testing is by Sunday Riley, the B3 Nice 10% Niacinamide Serum. I got this recently to test out. The product is liquidy, not as thick as the La Roche Posay one, but it's kind of thick. I'll give it about a minute to dry out on my skin so that all the products are well absorbed."

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"For the daytime I'm using this one, this is the B3 Nice, this is the Sunday Riley 10% niacinamide serum, and it is really really gentle. I absolutely love it, it is completely water-based, and it goes in really really well."

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"I have been loving the Sunday Riley B3 Nice niacinamide serum. It has niacinamide 10 and also resveratrol which is a fabulous antioxidant which also has great anti-aging benefits. If you're looking at something which is more of a hybrid formula with great ingredients to boost up your anti-aging efforts, I do recommend the one from Sunday Riley. This product is definitely not under 500 but it is very very effective. I love it and from an anti-aging perspective this is my first recommendation for you."

Caroline Hirons

251k subs

~Yay

"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."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Niacinamide

Niacinamide has evidence behind it for redness, uneven tone and supporting the skin barrier, and it is usually well tolerated even by skin that reacts to most things.

Source: DermNet

Frequently asked.

What is Sunday Riley B3 Nice 10% Niacinamide Serum?

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

Is Sunday Riley B3 Nice 10% Niacinamide Serum worth it?

The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 65%.

What is Sunday Riley B3 Nice 10% Niacinamide Serum's Guru Score?

Sunday Riley B3 Nice 10% Niacinamide Serum holds a Guru Score of 65%. That is our read on how warmly the experts talk about it, based on the verdicts of 4 expert reviewers we have collected.