The Trend Verdict
Spec-by-spec

Head to head

Contenders from Lash & Brow Serums, every metric lined up. The winning value in each row is outlined.

GrandeLASH-MD Lash Enhancing Serum 1mL GrandeLASH-MD Lash Enhancing Serum 1mL #1 in Lash & Brow Serums
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UpNature Organic Castor Oil 16 oz – Multi-Use Conditioning Oil UpNature Organic Castor Oil 16 oz – Multi-Use Conditioning Oil #67 in Lash & Brow Serums
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Price
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Rating
★★★★★
★★★★★
Category rank
#1
#67
Regrowth Efficacy
Fuller lashes in 6–8 weeks
Conditioning only; no growth evidence
Irritation
Ophthalmologist tested, rare irritation reports
Very gentle; low irritation risk
Cost per Month
$36/month (~$1.20/day)
Excellent cost per ounce for multi-use oil
Peptide Potency
Multi-peptide + biotin, panthenol, castor oil
None; castor oil base only
Clean Formula
Prostaglandin-free, fragrance-free, cruelty-free
Organic, prostaglandin-free, fragrance-free
Ease of Use
Once-daily brush application, straightforward
Requires separate applicator; less precise
Verdict
Solid mid-premium peptide serum with proven lash growth
Conditioning oil, not a growth serum

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