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Head-to-head evidence comparison — which supplement is right for you?
Bimatoprost (lashes) vs Tazarotene: Bimatoprost (lashes) has the stronger overall evidence (8 vs 7.5/10); the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Bimatoprost (lashes) 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
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
Apply a thin layer once daily in the evening to clean, dry skin. Strengths: 0.045% lotion, 0.05% and 0.1% cream/gel, 0.1% foam. Start every other night if irritation appears.
evening
Tazarotene 0.045% lotion
Throughout
8-16 weeks
2-6 months after stopping
Weeks to months
immediate
12 weeks
24 weeks
1-4 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)
Tazarotene 0.045% Lotion for Once-Daily Treatment of Moderate-to-Severe Acne Vulgaris: Results from Two Phase 3 Trials
J Drugs Dermatol (2020) · Rct · n=1614
The two identical phase 3 registration trials for the 0.045% lotion — 1614 subjects aged 9 and older.
New Polymeric Once-Daily Tazarotene 0.045% Lotion Formulation for Moderate-to-Severe Acne: Pooled Phase 3 Pediatric Analysis
J Drugs Dermatol (2020) · Rct · n=684
A pooled paediatric SUBGROUP analysis of the two phase 3 trials, not a separate trial: 136 patients aged 10-13 and 548 aged 14-17.
Efficacy of 0.1% tazarotene cream for the treatment of photodamage: a 12-month multicenter, randomized trial
Arch Dermatol (2002) · Rct · n=563
The long photodamage trial: 24 weeks double-blind, then a 28-week open-label extension — 12 months in total, 563 patients.
Bimatoprost (lashes) has a higher evidence score (8/10 vs 7.5/10) and wins in 2 of 3 categories.
No known interactions between Bimatoprost (lashes) and Tazarotene have been documented in our database. However, always consult a healthcare provider before combining supplements.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.