Spec-by-spec
Head to head
Contenders from Lash & Brow Serums, every metric lined up. The winning value in each row is outlined.
Price
Check price on Amazon →
Check price on Amazon →
Rating
★★★★★
★★★★★
Category rank
#3
#82
Regrowth Efficacy
Fuller, longer lashes in 8–12 weeks
Claimed longer/fuller in weeks; limited proof
Irritation
Ophthalmologist tested; rare irritation reports
Prostaglandin-free, no major irritation reports
Cost per Month
$22.67/month (mid-premium tier)
$40/month; premium for emerging brand
Peptide Potency
Multi-peptide + biotin, pantothenic acid, amino acids
15-plant extract blend + peptide + biotin
Clean Formula
Prostaglandin-free, fragrance-free, cruelty-free
Vegan, cruelty-free, prostaglandin-free
Ease of Use
Precision brush, once-daily application
Brush applicator, once-daily application
Verdict
Premium peptide serum with clinical backing and proven community trust
Niche peptide serum with unproven claims and low market traction
Affiliate link — we may earn a commission