Can you use niacinamide with benzoyl peroxide?
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This pair is easy because only one of the two is an acne drug. Benzoyl peroxide does the treating; niacinamide is a gentle vitamin B3 ingredient that sits alongside it.
What each one does
What niacinamide does
A form of vitamin B3, studied for acne, oily skin and dark spots. Reviews describe it as extremely well tolerated.
Usual over-the-counter strength: 2–5%
What benzoyl peroxide does
An acne ingredient that works by oxidizing. It dries skin and can bleach hair, towels and pillowcases.
Usual over-the-counter strength: 2.5–10%
Do they work well together?
A split-face trial found that pairing benzoyl peroxide with niacinamide was well tolerated. That fits how each one works: benzoyl peroxide lowers the bacteria behind acne and, per the AAD, does the most when it is paired with a treatment aimed at acne's other causes.
Niacinamide has an acne record of its own: DermNet notes a 4% niacinamide gel worked as well as a 1% clindamycin gel in 76 people with moderate acne, and it is well tolerated even by many who can't use retinoids or acid exfoliants. It can be used once or twice a day, and most products hold 5% or less. See our niacinamide guide and benzoyl peroxide guide.
SourcesKaewsanit et al., J Clin Aesthet Dermatol, 2021DermNet: NicotinamideAmerican Academy of Dermatology: Acne diagnosis and treatment (updated June 2024)Cleveland Clinic: Top 6 benefits of niacinamide (Feb. 2026)
How to layer them
The AAD's rule of thumb is to apply any medicine or treatment right after cleansing, then moisturizer and sunscreen. So benzoyl peroxide goes on first, then niacinamide, then your moisturizer.
- Morning: benzoyl peroxide wash or gel, then niacinamide, then moisturizer and SPF 30+.
- Night: cleanser, then niacinamide, then moisturizer.
Start benzoyl peroxide with one application a day, since dryness can occur. Mayo Clinic suggests beginning with a 2.5% water-based benzoyl peroxide, because lower strengths work as well as higher ones with less risk of irritation. Niacinamide can be used daily from the start.
SourcesFDA label (DailyMed): PanOxyl Acne Foaming Wash, benzoyl peroxide 10%American Academy of Dermatology: Should I apply my skin care products in a certain order?Mayo Clinic: Nonprescription acne treatment (2024)
If skin gets dry or oily
Benzoyl peroxide's main drawback is dryness. Its FDA labeling rule says that if bothersome dryness or peeling sets in, cut back to once a day or every other day. A daily moisturizer helps skin tolerate acne treatments, so don't drop it.
If oiliness is part of your picture, niacinamide may help on that front too: a 2024 review reports that 2% to 5% niacinamide can reduce oil, and that it worked better in oily skin than in non-oily skin in acne studies.
SourcesMarques et al., Antioxidants, 2024FDA rule: 21 CFR 333.310, 333.320 and 333.350 (OTC acne drugs)American Academy of Dermatology: Moisturizer if you have acne
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Questions people ask
Can I use niacinamide and benzoyl peroxide at the same time of day?
Yes. A split-face trial found the two well tolerated together. Apply benzoyl peroxide first, then niacinamide; start the benzoyl peroxide once a day, as dryness can occur.
SourcesKaewsanit et al., J Clin Aesthet Dermatol, 2021FDA label (DailyMed): PanOxyl Acne Foaming Wash, benzoyl peroxide 10%
Does niacinamide stop benzoyl peroxide from working?
No clash is known. In a split-face trial the two were well tolerated together, and the AAD says benzoyl peroxide does the most when it is paired with another acne treatment.
SourcesKaewsanit et al., J Clin Aesthet Dermatol, 2021American Academy of Dermatology: Acne diagnosis and treatment (updated June 2024)
What strength of niacinamide should I use?
A low one is fine. Most niacinamide products hold 5% or less, and Cleveland Clinic suggests starting low if your skin is sensitive. A 2024 review found anti-aging formulas mostly use 4% to 5%, with no stinging up to 10% and no irritation up to 5%.
SourcesMarques et al., Antioxidants, 2024Cleveland Clinic: Top 6 benefits of niacinamide (Feb. 2026)
What if the combo dries out my skin?
Ease off the benzoyl peroxide, not the niacinamide.
- The FDA labeling rule says to reduce benzoyl peroxide to once a day or every other day if dryness or peeling bothers you.
- Keep using a daily moisturizer; the AAD says it helps skin tolerate acne treatments.
SourcesFDA rule: 21 CFR 333.310, 333.320 and 333.350 (OTC acne drugs)American Academy of Dermatology: Moisturizer if you have acne
Can niacinamide help with oily skin?
It may. A 2024 review says 2% to 5% niacinamide can reduce oil, and that it worked better in oily skin than in non-oily skin in acne studies.
American Academy of Dermatologyaad.org
- Acne diagnosis and treatment (updated June 2024)
Benzoyl peroxide reduces acne bacteria and is most effective with another treatment; salicylic acid opens clogged pores and exfoliates; at least 6 to 8 weeks to see fewer breakouts; applying more will not clear acne faster.
- Should I apply my skin care products in a certain order?
Cleanse, then apply any medicine or treatment right after cleansing, then moisturizer and/or sunscreen.
- Moisturizer if you have acne
A daily moisturizer helps skin tolerate acne treatments including salicylic acid; apply after washing, leaving some water on the face; choose oil-free or non-comedogenic.
DermNetdermnetnz.org
- Nicotinamide
Well tolerated, often usable by those who cannot tolerate topical retinoids or fruit acids; 4% gel as effective as 1% clindamycin gel in 76 patients with moderate acne; 2% moisturizer for 4 to 6 weeks reduced sebum.
- Benzoyl peroxide
DailyMed, US National Library of Medicinedailymed.nlm.nih.gov
- FDA label (DailyMed): PanOxyl Acne Foaming Wash, benzoyl peroxide 10%
Start with one application daily; dryness can occur.
Electronic Code of Federal Regulationsecfr.gov
- FDA OTC acne monograph, 21 CFR 333.310
Leave-on acne products: start with one application daily; if bothersome dryness or peeling occurs, reduce to once a day or every other day; labels warn irritation and dryness are more likely with another topical acne medication.
Cleveland Clinicclevelandclinic.org
- Top 6 benefits of niacinamide (Feb. 2026)
Most products contain 5% or less; start with a low concentration if you have sensitive skin; can be used once or twice daily.
Mayo Clinicmayoclinic.org
- Nonprescription acne treatment (2024)
Apply one product in the morning and another at night to help prevent irritation; start benzoyl peroxide at a 2.5% water-based strength; lower strengths are as effective as higher ones; salicylic acid comes in 0.5–2% leave-on and wash-off products.
Studies and other sources
- Kaewsanit et al., J Clin Aesthet Dermatol, 2021jcadonline.com
Split-face trial: benzoyl peroxide plus niacinamide well tolerated.
- Marques et al., Antioxidants, 2024mdpi.com
2% to 5% niacinamide can reduce sebum; more effective in oily than non-oily skin at 2% to 4% in acne studies; anti-aging formulas mainly 4% to 5%; no stinging up to 10%, no irritation up to 5%; flushing is an effect of high oral doses of niacin, and niacinamide has no cutaneous vasodilating properties.