Readers Love This $6 Niacinamide Serum for Fading Dark Spots

When it comes to treating dark spots, fading discoloration and refining pores, many assume that real results require a hefty price tag. But in a recent survey of more than 400 NewBeauty readers,* one budget-friendly serum kept rising to the top as a go-to for clearer, more even skin: Good Molecules Niacinamide Serum.

At just $6, this no-frills formula is powered by 10-percent niacinamide, a dermatologist-loved ingredient known for its ability to fade spots, calm breakouts and strengthen the skin barrier. Readers praised it for helping with discoloration and unwanted buildup, while still being gentle enough for daily use.

One 39-year-old reader said niacinamide “helps with discoloration,” while another, 26, called it “the best ingredient for dark spots and acne,” adding that it “promotes a healthy skin barrier while also getting rid of unwanted buildup.” Both named Good Molecules Niacinamide Serum as their go-to product for harnessing the ingredient’s benefits.

But NewBeauty readers aren’t the only ones impressed. With more than 1,700 positive reviews on Good Molecules’ site and 800 on Ulta, the serum has built a loyal following. One reviewer wrote: “I have been using this serum and have noticed a definite reduction in pore size, and overall the texture of my skin looks much smoother.” Another called the serum “life changing.”

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The serum’s lightweight, water-like texture makes it easy to layer under other products, and its formula is free of fragrance and harsh additives, making it ideal for sensitive or reactive skin. For those dealing with unwanted dark spots or uneven tone, Good Molecules Niacinamide Serum proves that effective skin care doesn’t have to come with a luxury price tag.

*Source: BeautyEngine Advanced Research, 2025