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Head-to-head evidence comparison — which supplement is right for you?
Benzoyl Peroxide wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
Topical OTC use. Benzoyl peroxide is used at 2.5-10% in gels, creams, and washes, applied to acne-prone areas once or twice daily; lower strengths (2.5-5%) are usually as effective as 10% with less irritation. There is no oral or systemic dose — it is not ingested. It is often combined with a retinoid (e.g. adapalene) for greater effect. This library does not provide an ingestion protocol.
any
Leave-on gel/cream (2.5-5%) or a fixed combination with a retinoid
Prescription topical. Bimatoprost 0.03% is applied once daily as a thin line to the skin of the UPPER eyelid margin at the lash base (not to the lower lid, and avoid getting it in the eye), using a fresh applicator per eye. Continuous use is needed to maintain results. Use under a clinician, especially if you have glaucoma or take prostaglandin eye drops. There is no oral or systemic use. This library does not provide an ingestion protocol.
evening
Bimatoprost 0.03% solution (Latisse) with single-use applicators, under a clinician
Throughout
4-12 weeks
Throughout
First weeks
Throughout
8-16 weeks
2-6 months after stopping
Weeks to months
Topical benzoyl peroxide for acne.
Cochrane Database Syst Rev (2020) · Systematic review
Pooled 120 RCTs (29,592 participants); BPO more effective than placebo/no treatment for participant-reported improvement (RR 1.27, 95% CI 1.12 to 1.45)
Efficacy of topical treatments for mild-to-moderate acne: A systematic review and meta-analysis of randomized control trials.
J Eur Acad Dermatol Venereol (2025) · Meta analysis
Network meta-analysis of 35 RCTs (33,472 participants) comparing nine topical acne agents
Adapalene-benzoyl peroxide, a fixed-dose combination for the treatment of acne vulgaris: results of a multicenter, randomized double-blind, controlled study.
J Am Acad Dermatol (2007) · Rct · n=517
517 subjects randomized double-blind to adapalene-BPO, adapalene, BPO, or vehicle for 12 weeks
Long-term safety and efficacy of bimatoprost solution 0.03% application to the eyelid margin for the treatment of idiopathic and chemotherapy-induced eyelash hypotrichosis: a randomized controlled trial.
Br J Dermatol (2015) · Rct
1-year double-masked RCT: composite primary endpoint (Global Eyelash Assessment + satisfaction) met for bimatoprost vs vehicle in idiopathic (40.2% vs 6.8%) and post-chemotherapy (37.5% vs 18.2%) hypotrichosis
Bimatoprost for eyelash growth in Japanese subjects: two multicenter controlled studies.
Aesthetic Plast Surg (2014) · Rct · n=209
Two double-masked vehicle-controlled RCTs (n=209: 173 idiopathic, 36 chemotherapy-induced) in Japanese subjects
The efficacy of topical prostaglandin analogs for hair loss: A systematic review and meta-analysis.
Front Med (Lausanne) (2023) · Meta analysis
Meta-analysis of six placebo-controlled RCTs of topical prostaglandin analogs (incl. bimatoprost) for hair growth (lashes, brows, scalp)
Benzoyl Peroxide has a higher evidence score (9/10 vs 8/10) and wins in 2 of 3 categories.
No known interactions between Benzoyl Peroxide and Bimatoprost (lashes) have been documented in our database. However, always consult a healthcare provider before combining supplements.