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B-Bomb 10% Niacinamide Serum

Oily SkinSerum

B-Bomb 10% Niacinamide Serum — Reddit Reviews

by Geek & Gorgeous

90nextscore6 verdicts

Updated October 29, 2026

10% niacinamide serum calms oil production; high-strength formula can worsen texture.

What the community says

Backed by 65 studies

A high-strength niacinamide serum that Reddit users reach for when excess oil is the problem, with several calling it a routine staple. It fits oily skin better than dry or texture-prone skin, where users report dryness and orange-peel texture.

From Reddit

Backed by 4 threads from r/SkincareAddiction, r/koreanskincare and 1 more.

Read the threads ↓

What people love

  • 10% niacinamide for oil control
  • Routine staple in Reddit skincare routines

Watch out for

  • Can cause dryness with daily use
  • High concentration worsened oiliness and orange-peel texture for some
  • Did not shrink pores; one user saw more clogging

Product details

Skin Type

Product Traits

Key Ingredients

Skin type data limited

Where to buy

What the science says

  • Acne

    Some evidence

    Niacinamide: 6 studies tested it directly. See all 17 studies

    Both ingredients for acne

    Niacinamide Some evidence

    • Most studies found niacinamide helped acne
    • It often worked about as well as clindamycin when put on the skin
    • Some studies found it reduced red, sore spots and other pimples
    • Some research found the results were uncertain or showed no clear difference

    Studied at 4–10%this product: 10%

    Zinc Not proven yet

    Few or mixed studies. This claim isn't established.

    4 studies tested it directly. See all 16 studies

    • The results were split, so there is no clear answer yet on whether zinc helps acne
    • When used with clindamycin, zinc worked about as well as clindamycin alone for pimples, blackheads and whiteheads
    • When added to erythromycin, zinc did not clear acne better than erythromycin alone
    • One study found 5% zinc sulphate put on the skin helped acne, but it worked less well than tea lotion
  • Hyperpigmentation

    Some evidence

    Niacinamide: 4 studies tested it directly. See all 17 studies

    What the studies found
    • All 4 studies that tested it directly found it helped fade dark spots or patches
    • It reduced facial dark spots better than a moisturizer without niacinamide
    • Women with chloasma saw darker patches improve more when nicotinamide was added to salicylic acid
    • Studies also found facial skin looked lighter as dark spots faded

    Studied at 2–10%this product: 10%

  • Anti-Aging

    Some evidence

    Niacinamide: 2 studies tested it directly. See all 8 studies

    What the studies found
    • Both studies that tested it directly found it helped with signs of aging
    • It improved how firm and elastic the skin looked
    • It reduced wrinkles, uneven tone, redness, and yellowing
    • It helped skin hold more water and lowered water loss through the skin

    Studied at 2–5%this product: 10%

  • Skin Barrier

    Not proven yet

    Few or mixed studies. This claim isn't established.

    Niacinamide: 1 study tested it directly. See all 17 studies

    What the studies found
    • The one study that tested it directly found it helped the skin barrier
    • It lowered water loss through the skin
    • It increased the thickness of the outer layer of skin

    Studied at 4–5%this product: 10%

Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.

Real Reddit threads — 12 mentions across 4 threads

Geek & Gorgeous B-Bomb 10% Niacinamide Serum on Reddit, in one place — 4 threads from r/SkincareAddiction, r/koreanskincare and 1 more, summarized.

“I started with the nø serum but in march I started using the geek and gorgeous bbomb serum instead bcs of its higher concentration.”

Cautionary

“But it did nothing for my pores, right now they seem larger and dirtier and more clogged than EVER”

Cautionary

“The G&G B-Bomb is a great product, but for many people, myself included, high concentrations of Niacinamide actually cause more oiliness and orange peel texture.”

Cautionary
r/koreanskincareCombo oily skin products
5

“• Geek & Gorgeous B-Bomb”

Mentioned

“SERUMS:”

Mentioned

“Here are the products:”

Mentioned

“B-Bomb is the BEST niacinamide serum I know”

Positive

“so highly recommended”

Positive

“Geek and gorgeous can cover you on all of that basically.”

Mentioned

“https://geekandgorgeous.com/products/b-bomb”

Mentioned

“Thankfully those are easy to replace!”

Mentioned

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