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 2mL GrandeLASH-MD Lash Enhancing Serum 2mL #3 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
#3
#67
Regrowth Efficacy
Fuller, longer lashes in 8–12 weeks
Conditioning only; no growth evidence
Irritation
Ophthalmologist tested; rare irritation reports
Very gentle; low irritation risk
Cost per Month
$22.67/month (mid-premium tier)
Excellent cost per ounce for multi-use oil
Peptide Potency
Multi-peptide + biotin, pantothenic acid, amino acids
None; castor oil base only
Clean Formula
Prostaglandin-free, fragrance-free, cruelty-free
Organic, prostaglandin-free, fragrance-free
Ease of Use
Precision brush, once-daily application
Requires separate applicator; less precise
Verdict
Premium peptide serum with clinical backing and proven community trust
Conditioning oil, not a growth serum

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