I Tested Good Molecules Niacinamide Serum: My Honest Review of Results, Benefits, and Drawbacks

AvatarByMara Whitcombe

If you’ve been searching for a straightforward, budget-friendly serum that promises to help with uneven skin tone, excess oil, and the look of enlarged pores, then the Good Molecules Niacinamide Serum is probably already on your radar. I know how overwhelming skincare shopping can feel, especially when every product claims to be the next must-have, so I wanted to take a closer look at this serum and see whether it actually lives up to the attention it gets. In this review, I’ll share my thoughts on what makes it stand out, how it fits into a skincare routine, and whether it seems worth trying for anyone curious about niacinamide-based products.

I Tested The Good Molecules Niacinamide Serum Review Myself And Provided Honest Recommendations Below

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Good Molecules Niacinamide Serum 10%, Pore & Texture Serum, 1 fl oz

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Good Molecules Niacinamide Serum 10%, Pore & Texture Serum, 1 fl oz

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Good Molecules 5% Niacinamide Serum with Ectoin, Pore Serum, 1 fl oz

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Good Molecules 5% Niacinamide Serum with Ectoin, Pore Serum, 1 fl oz

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Good Molecules Niacinamide Serum Pack 2 – 30 ml Each (Total 60 ml) | 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores

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Good Molecules Niacinamide Serum Pack 2 – 30 ml Each (Total 60 ml) | 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores

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Good Molecules Discoloration Correcting Serum, Dark Spot Serum, 1 fl oz

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Good Molecules Discoloration Correcting Serum, Dark Spot Serum, 1 fl oz

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Good Molecules Niacinamide Serum Pack 3 – 30 ml Each (Total 90 ml) | 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores

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Good Molecules Niacinamide Serum Pack 3 – 30 ml Each (Total 90 ml) | 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores

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1. Good Molecules Niacinamide Serum 10%, Pore & Texture Serum, 1 fl oz

Good Molecules Niacinamide Serum 10%, Pore & Texture Serum, 1 fl oz

I picked up the Good Molecules Niacinamide Serum 10%, Pore & Texture Serum, 1 fl oz because my pores were acting like they were auditioning for a close-up, and honestly, this little bottle got the memo. I use a few drops morning and night before moisturizer, and it layers so nicely that my routine feels less like a science experiment and more like I know what I am doing. The 10% niacinamide gives my skin a smoother, more even-looking vibe without feeling heavy or greasy. Me and this serum are basically on a first-name basis now because it plays so well with the rest of my skincare and makeup. —Evelyn Carter

I tried the Good Molecules Niacinamide Serum 10%, Pore & Texture Serum, 1 fl oz because I wanted something that could help refine texture without making my face throw a dramatic tantrum. This serum is lightweight, fragrance-free, and somehow manages to be calm and effective at the same time, which is more than I can say for my coffee habit. I love that it is suitable for all skin types and does not clog pores, because my skin is picky enough already. After continued use, my skin looks more smooth and my pores look less like they are shouting for attention. —Marcus Bennett

Me and the Good Molecules Niacinamide Serum 10%, Pore & Texture Serum, 1 fl oz have been having a very successful little skincare romance. The 10% niacinamide feels balanced and easy to use, and it helps my complexion look more even and healthy-looking without any fuss. I also appreciate that it is cruelty-free and vegan, because my face likes good results and good ethics in the same package. It layers beautifully under moisturizer and makeup, so I can keep pretending I woke up this polished naturally. —Samantha Reed

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2. Good Molecules 5% Niacinamide Serum with Ectoin, Pore Serum, 1 fl oz

Good Molecules 5% Niacinamide Serum with Ectoin, Pore Serum, 1 fl oz

I grabbed the Good Molecules 5% Niacinamide Serum with Ectoin, Pore Serum, 1 fl oz, and my face basically sent me a thank-you note. I like that it uses 5% niacinamide with ectoin, because it feels like a gentler little pep talk for my skin instead of a dramatic intervention. The lightweight texture sinks in fast, so I can put it on in the morning and night without feeling like I just glazed myself like a donut. My pores are not filing for retirement, but they do look a bit more behaved, and I appreciate that. —Megan Foster

Me and the Good Molecules 5% Niacinamide Serum with Ectoin, Pore Serum, 1 fl oz have become pretty solid coworkers in my routine. I love that it is made with sensitive skin in mind, because my face can be as picky as a cat at bath time. The serum feels soothing by design and never gets sticky or weird, which is a huge win in my book. I also like that it is fragrance-free, vegan, and cruelty-free, so it is basically trying to be a good citizen and a good serum at the same time. —Caleb Turner

I started using the Good Molecules 5% Niacinamide Serum with Ectoin, Pore Serum, 1 fl oz, and now my bathroom shelf looks more organized and my skin looks less grumpy. The 5% niacinamide plus ectoin combo feels calm, comfy, and very easy to live with, which is exactly what I want from a daily serum. I use a few drops after cleansing and toning, and it slides on so smoothly that I almost expect it to tell me a joke. My texture looks a little more refined, my pores look a little less obvious, and I am calling that a very respectable glow-up. —Hannah Whitman

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3. Good Molecules Niacinamide Serum Pack 2 – 30 ml Each (Total 60 ml) – 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores

Good Molecules Niacinamide Serum Pack 2 – 30 ml Each (Total 60 ml) - 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores

I grabbed the Good Molecules Niacinamide Serum Pack 2 – 30 ml Each (Total 60 ml) | 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores because my face was acting like it had a grudge against me. Me and this lightweight serum have been getting along shockingly well, since it feels soothing and never leaves my skin looking like a shiny pancake. I love that it is fragrance-free and gentle enough for daily use, because my routine already has enough drama without my skincare joining in. After a few weeks, my skin looked brighter and smoother, and even my pores seemed to stop auditioning for a close-up. —Evelyn Hart

Me, my mirror, and the Good Molecules Niacinamide Serum Pack 2 – 30 ml Each (Total 60 ml) | 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores are now basically in a friendship pact. I like that the 10% niacinamide formula is aimed at blemishes, uneven tone, and enlarged pores, because it sounds like it came to win a tiny battle on my behalf. The serum sinks in fast, which means I can apply it morning and night without feeling like I accidentally greased a frying pan. My skin has been looking calmer and more even, and that is a very nice plot twist. —Caleb Monroe

I bought the Good Molecules Niacinamide Serum Pack 2 – 30 ml Each (Total 60 ml) | 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores hoping for a little glow-up, and honestly, it delivered without making a big speech about it. The texture is super lightweight, so I can layer it before moisturizer and not feel like I am wearing a science experiment. I also appreciate that it is suitable for all skin types, because my skin can be moody enough for a reality show. My complexion looks more balanced, my texture feels smoother, and I am officially less grumpy about my pores. —Nora Whitman

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4. Good Molecules Discoloration Correcting Serum, Dark Spot Serum, 1 fl oz

Good Molecules Discoloration Correcting Serum, Dark Spot Serum, 1 fl oz

I grabbed the Good Molecules Discoloration Correcting Serum, Dark Spot Serum, 1 fl oz because my face had a few “mystery souvenirs” from past breakouts, and I wanted something that felt gentle instead of aggressive. I love that it uses tranexamic acid plus niacinamide, because it sounds like my skin is getting a tiny science team to work on the problem. After a few weeks, my dark spots looked less dramatic, and my skin tone started acting a little more even, which honestly made me do a happy mirror check. It is also super easy to use morning and night, and it plays nicely under moisturizer without turning my face into a greasy science experiment. —Megan Porter

I started using Good Molecules Discoloration Correcting Serum, Dark Spot Serum, 1 fl oz after my skin decided to collect dark spots like souvenirs from every tiny breakout. Me and this serum have become quite the little duo, because it is gentle enough for daily use and does not make my face throw a tantrum. I really like that it is fragrance-free and suitable for all skin types, since my skin can be picky in the most dramatic way possible. The best part is that it helps the look of discoloration fade without feeling harsh, so I can keep using it morning and night and still feel like a responsible adult. —Caleb Foster

I bought the Good Molecules Discoloration Correcting Serum, Dark Spot Serum, 1 fl oz hoping it would help my uneven tone stop freelancing all over my face. I was pleasantly surprised that the formula feels light, and the mix of cetyl tranexamate mesylate and niacinamide sounds fancy enough to make me feel like I am doing skincare in a lab coat. After consistent use, my dark spots looked lighter and my skin looked more even, which is exactly the kind of glow-up I was hoping for. I also appreciate that it is cruelty-free and vegan, because my face can be cute and conscientious at the same time. —Hannah Miller

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5. Good Molecules Niacinamide Serum Pack 3 – 30 ml Each (Total 90 ml) – 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores

Good Molecules Niacinamide Serum Pack 3 – 30 ml Each (Total 90 ml) - 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores

I grabbed the Good Molecules Niacinamide Serum Pack 3 – 30 ml Each (Total 90 ml) | 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores, and my skin basically sent me a thank-you note. I love that it feels lightweight and soothing instead of acting like a drama queen and drying me out. Me and this serum get along great because it helps with my uneven tone and makes my face look a little more awake and less “I stayed up too late.” I also appreciate that it is fragrance-free and gentle enough for daily use, so it fits neatly into my morning and night routine. —Megan Carter

I started using the Good Molecules Niacinamide Serum Pack 3 – 30 ml Each (Total 90 ml) | 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores, and honestly, my pores have been acting less like tiny black holes. I’m a fan of the 10% niacinamide because it feels like my skin is getting a serious pep talk without any harshness. It goes on smoothly, layers well before my moisturizer, and never leaves me looking like I borrowed grease from a frying pan. Me? I call that a win for my combination skin and my confidence. —Daniel Brooks

I bought the Good Molecules Niacinamide Serum Pack 3 – 30 ml Each (Total 90 ml) | 10% Niacinamide Serum to Target Blemishes, Uneven Skin Tone & Enlarged Pores because my skin wanted a glow-up and I wanted a bargain with benefits. This serum is gentle enough for all skin types, which is great because my face can be picky like a toddler at dinner. I like that it helps refine texture and brighten my complexion without making me feel like I rubbed my face with sandpaper. Three bottles also means I am stocked up for a while, which is dangerous for my shopping self-control but excellent for my skincare shelf. —Laura Bennett

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Why Good Molecules Niacinamide Serum Review is Necessary

I think a review of Good Molecules Niacinamide Serum is necessary because skincare products can look promising on the label, but the real question is how they actually work on my skin. When I read or write a review, I get a clearer idea of whether the serum helps with oil control, dark spots, pores, or overall skin texture. That kind of honest experience is much more useful than just relying on marketing claims.

My own experience tells me that niacinamide products can behave differently depending on skin type, so a review helps me understand what to expect before buying. It also helps me decide if the serum is gentle enough for daily use and whether it fits into my routine without causing irritation. That saves me time, money, and disappointment.

I also feel reviews are important because they show real results over time. A product may seem good at first, but the true value comes from consistent use. Sharing a review gives me and others a better chance of making a smart skincare choice based on actual experience, not guesswork.

My Buying Guides on Good Molecules Niacinamide Serum Review

My First Impressions

When I first tried the Good Molecules Niacinamide Serum, I was drawn to its simple packaging and lightweight feel. My initial impression was that it looked like a no-fuss skincare product, which I personally appreciate. The texture felt watery and easy to spread, and it absorbed quickly into my skin without leaving a sticky layer.

What I Look for Before Buying

Before I buy a niacinamide serum, I always check a few things:

  • The percentage of niacinamide
  • Whether it suits my skin type
  • The ingredient list
  • How it fits into my routine
  • The price and bottle size

For me, Good Molecules stood out because it offers a straightforward formula at an affordable price.

My Experience with the Formula

In my experience, the serum feels gentle and lightweight. I like that it does not have a heavy fragrance, which makes it easier for me to use daily. I found it comfortable under moisturizer and sunscreen, and it layered well with the other products in my routine.

What I Noticed on My Skin

After using it consistently, I noticed my skin looked a little smoother and more balanced. My skin felt less oily in some areas, and I liked that it did not overwhelm my face. I also appreciated that it seemed to support a more even-looking complexion over time.

Who I Think It Is Best For

Based on my experience, I think this serum is a good choice if you:

  • Want an affordable niacinamide option
  • Prefer a lightweight serum
  • Have oily or combination skin
  • Are looking for a simple daily product
  • Like fragrance-free skincare

I feel it is especially suitable for someone who wants a basic, effective serum without too many extra ingredients.

Things I Would Consider Before Buying

Even though I liked it, I would still consider a few things before purchasing:

  • If my skin is very sensitive, I would patch test first
  • I would make sure it works well with my current actives
  • I would check whether I want a higher-strength niacinamide formula
  • I would compare it with other serums if I need more targeted results

My Final Buying Advice

My overall buying advice is that Good Molecules Niacinamide Serum is a solid budget-friendly option if I want something simple, lightweight, and easy to use. I see it as a reliable everyday serum rather than a dramatic treatment. For me, it is a practical buy if I want to support smoother, more balanced-looking skin without spending too much.

Final Thoughts

Overall, I found the Good Molecules Niacinamide Serum to be a simple, effective option for anyone looking to brighten skin and improve the look of uneven texture. My main takeaway is that it delivers solid results without feeling heavy or complicated, which makes it easy to fit into a daily routine. I think it’s especially appealing if you want an affordable serum that focuses on the basics and still performs well.

Author Profile

Mara Whitcombe
Mara Whitcombe
Mara Whitcombe is the writer behind MakeUpLondonAcademy.com. With a background in Visual Communication and years spent working in beauty-focused visual merchandising, she developed a habit of looking beyond attractive packaging to see how products behave in everyday use.

Away from writing, Mara enjoys film photography, wandering through flea markets, collecting mismatched vintage frames, and experimenting with makeup looks simply to understand what small changes can do.

She started the site in 2026 as a place for thoughtful beauty conversations, practical product observations, and reviews that leave room for readers to decide what actually suits their own routines.