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 4mL GrandeLASH-MD Lash Enhancing Serum 4mL #2 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
#2
#67
Regrowth Efficacy
Longer, fuller lashes in 6–12 weeks
Conditioning only; no growth evidence
Irritation
Eye-safe; rare mild stinging if migrates
Very gentle; low irritation risk
Cost per Month
$21/month; mid-premium range
Excellent cost per ounce for multi-use oil
Peptide Potency
Multi-peptide + biotin, panthenol, castor
None; castor oil base only
Clean Formula
Prostaglandin-free, fragrance-free, not vegan
Organic, prostaglandin-free, fragrance-free
Ease of Use
Precision brush, once daily, mess-free
Requires separate applicator; less precise
Verdict
Premium peptide serum, proven results, widely trusted
Conditioning oil, not a growth serum

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