Good Molecules Brand Logo

Good Molecules

Niacinamide Serum

1.00 fl. oz. for $ 6.00
Expert Rating

Expert Reviews

Community Reviews



Brand Overview

Niacinamide Serum is one of Good Molecule’s better products, though it could be so much more with just a few tweaks.

Housed in a frosted glass bottle with a dropper dispenser, this water-light serum sinks into skin immediately. Its lightweight texture means it works well over or under other skin care products, and more to love: it’s fragrance free.

As advertised, this contains a high amount of niacinamide (10% - it’s the second ingredient in), which has years of research proving its multiple benefits to skin, including reducing pore size, improving skin texture, and brightening skin tone.

One note: even though this product’s packaging isn’t opaque, niacinamide is stable in the presence of light, so you won’t need to store it in the dark.

What is problematic, though, is that there’s just not much else here to speak of in terms of skin-beneficial ingredients. While there are some good skin conditioning ingredients, it’s just not a robust formula, and skin needs much more than a single superstar ingredient to look and feel its best.

That said, if you already have a robust skin care routine, this inexpensive booster might be one you want to add if you don’t already have a niacinamide product.

  • Contains a high amount of skin-brightening, pore minimizing niacinamide.
  • Has a lightweight texture that works well with other skin care products.
  • Fragrance free.
  • One-note formula would be more impressive with additional beneficial ingredients.
Jar Packaging: No
Tested on animals: No

Minimize the look of pores and uneven tone and texture with this 10% niacinamide serum.

Water/Aqua/Eau, Niacinamide, Dipropylene Glycol, Glycerin, Betaine, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenoxyethanol, Chlorphenesin, Ethylhexylglycerin, Caprylyl Glycol, Xanthan Gum, Sorbitan Isostearate, Polysorbate 60, Diphenyl Dimethicone, Disodium EDTA, Triethylhexanoin, Polyglyceryl-10 Oleate, Hydrogenated Lecithin.

Good Molecules is the house skin care brand of online retailer Beautylish. Beautylish got its start in 2010 in San Francisco and features articles on makeup and skin care topics, community reviews and feedback, and of course sells beauty products from a variety of brands.

Good Molecules launched in 2019 because the team behind Beautylish wanted to create a skin care company that focused on effective ingredients with a bargain price, not unlike the line’s most direct competitor, The Ordinary, which Beautylish also sells.

To that end, Good Molecules focuses on a small core of booster and treatment-like products, some being notably better than others. Just like The Ordinary, some of the formulas are one-note (focusing on a single ingredient or a pair of ingredients, instead of offering a more well-rounded option). This isn’t what research has shown is best for skin any more than eating only one healthy food would be a wise dietary choice; however, at these prices, some of these one-note products can make a nice addition to a great skin care routine.

Another concern is that almost all of the packaging is in bottles that need to be stored out of light to protect their ingredients. And we’re not thrilled that one or two products include citrus ingredients known to be irritating and the drying type of alcohol. Unlike many of the options from The Ordinary, however, the textures of the Good Molecules products are generally quite nice and layer well.

Still, the line’s philosophy is solid and there are some worthy entries, as long as you keep your expectations realistic (a single ingredient isn’t the solution to any skin concern). For more information about Good Molecules, visit


About the Experts

The Beautypedia team consists of skin care and makeup experts personally trained by the original Cosmetics Cop and best-selling beauty author, Paula Begoun. We’re fascinated by skin care and makeup products and thrilled when they meet or exceed our expectations, but we’re also disappointed when they fail to perform as claimed, are wildly overpriced, or contain ingredients scientific research has proven can hurt skin.

Our mission has always been to help you find the best products for your skin, no matter your budget or preferences. Beautypedia’s thorough and insightful reviews cut through the hype and provide reliable recommendations for all ages, skin types, and skin tones.

This post may contain affiliate links. Please read our terms of use here.