Niacinamide serum.

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Serums

Guru Score

70%

Mixed

Early verdict · Few reviews so far

What the gurus are saying

Dr. Aanchal MD rates it highly; Dr. Daniel Sugai passed. Dr. Daniel Sugai: "I'm seeing this all the time. Many of my patients are getting contact dermatitis from niacinamide serums at higher doses. Definitely an irritant."

Synthesized from 2 expert reviews · most recent take October 2026

Type

Serums

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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 Yay takes Nay takes Mixed takes Hide sponsored

Dr. Aanchal MD

3.50M subs

~Yay

"Niacinamide is a beautiful ingredient that hydrates the skin, gives an even tone, nourishes, and takes care of free radicals. It's overrated? No, I love niacinamide. My go-to is 10 to 20 percent. Twenty can get a bit irritating, but ten is fantastic. It's a good starter ingredient because very rarely do people not tolerate it."

Dr. Daniel Sugai

722k subs

~Nay

"I'm seeing this all the time. Many of my patients are getting contact dermatitis from niacinamide serums at higher doses. Definitely an irritant. And when we cause more inflammation, we're just getting melanin being spilled all over the place. When we have inflammation causing fireworks in our skin it's going to leave dark spots that may even be permanent depending on how bad the contact dermatitis was. So niacinamide serums we're going to have to cut."

Frequently asked.

Is Niacinamide serum worth it?

The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 70%.

What is Niacinamide serum's Guru Score?

Niacinamide serum holds a Guru Score of 70%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.