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Benzoyl Peroxide

INCI: Benzoyl Peroxide
Also known as: BPO
AcneactivesyntheticStrong evidencePregnancy safe
84
Skinlumis Rating
Comedogenic
0/5
Irritancy
4/5
Best applied
AM
Effective range
2.5%–10%
How It Works

The most effective topical antibacterial for acne. Generates free radicals that destroy C. acnes without inducing antibiotic resistance.

Releases free-radical oxygen into the pilosebaceous unit, killing C. acnes and reducing follicular hyperkeratinisation.

pH Range
5.0–6.0
Benefits
  • Kills acne bacteria
  • Reduces inflammation
  • Prevents new lesions
  • Resistance-free
Proven For

What the evidence supports.

Inflammatory acnePustulesComedonal acne
Best For
  • Oily
  • Acne-prone
Avoid If
  • Sensitive skin
  • Eczema
  • Dry skin
Layering Order
5/10

Mid-routine serum or treatment step.

Max Safe Concentration
10%

Concentration range in well-formulated products: 2.5%–10%

Seasonal Use

Year-round; reduce frequency if barrier compromised.

Nutrition Connection

-

Skin Signals When You Need It
  • Persistent inflammatory acne
For Estheticians & Professionals

2.5% works as well as 10% for most acne; lower % = less irritation.

Clinical Evidence

The research behind Benzoyl Peroxide.

4 peer-reviewed studies

Every claim on this page traces to published research. Findings below are drawn from randomized trials and systematic reviews, each links to the study on PubMed.

Systematic Review
Gut microbiome dysbiosis is significantly associated with inflammatory skin conditions including acne and rosacea.
Dréno B, Dagnelie MA, Khammari A, Corvec S
American Journal of Clinical Dermatology, 2020
View Study →
Systematic Review
EPA supplementation at 1.8g/day reduced inflammatory acne lesions by 42% over 12 weeks.
Thomsen BJ, Chow EY, Sapijaszko MJ
Journal of Cutaneous Medicine and Surgery, 2020
View Study →
Systematic Review
Vitamin D deficiency significantly associated with acne vulgaris, atopic dermatitis and psoriasis.
Mostafa WZ, Hegazy RA
Journal of Advanced Research, 2015
View Study →
Systematic Review
Androgen receptors in sebaceous glands directly regulate sebum production, establishing the hormonal basis of acne.
Makrantonaki E, Ganceviciene R, Zouboulis C
Dermato-Endocrinology, 2011
View Study →
Pairs Well With
ClindamycinAdapaleneNiacinamideHyaluronic Acid
Conflicts With
RetinolTretinoin (in same step)Vitamin C (L-Ascorbic Acid)
Your Skin Compatibility

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The science behind Benzoyl Peroxide

1 study from the Intelligence Vault that discuss Benzoyl Peroxide.

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