Top Rated & Best Selling Eyebrow Serums

Highest-Volume Bestsellers
These consistently rank near the top:

1. Kate Blanc Cosmetics Organic Castor Oil (and similar pure cold-pressed castor oil products) — Often 20,000+ units/month. Around $10 for 2 oz. 4.5 stars with 100,000+ reviews. Hexane-free, multi-use for lashes, brows, hair, and skin. Very popular budget natural option; users report thicker-looking brows with consistent application.

2. The Ordinary Multi-Peptide Lash and Brow Serum — Frequently 20,000–30,000+ units/month. Typically $12–15 for 0.16 fl oz. 4.2 stars (thousands of reviews). Peptide complexes (including biotinoyl tripeptide-1 and others), caffeine, and plant extracts. Lightweight, dual-use for lashes and brows; visible density improvements often noted after 4–12 weeks. Strong value pick and frequent high-ranking/Amazon’s Choice-style performer.

3. Grande Cosmetics GrandeLASH-MD / GrandeBROW — High sales volume (tens of thousands monthly across related listings). Around $30–38. 4.2 stars with 50,000+ reviews on flagship versions. Peptide- and vitamin-infused formulas for fuller-looking lashes and brows. Widely available and frequently appears in top search/sales rankings.

4. VieBeauti Eyebrow Growth Serum — Strong “bought in past month” numbers (often 3,000–4,000+). Around $25 for 3 mL. 4.2–4.3 stars with thousands to tens of thousands of reviews. Botanical-focused (e.g., Swertia Japonica extract, peptides). Frequently surfaces in top Amazon search results for growth serums; many before/after claims for sparse or over-tweezed brows.

Other notable high-volume or frequently purchased options include various organic castor oil kits with applicators (e.g., Pure Body Naturals, Live Fraiche) and BABE ORIGINAL Lash Serum (also used for brows).

Editor- and Professional-Favored Options
These rank highly in testing by outlets like Cosmopolitan and have solid Amazon presence:

RevitaLash RevitaBrow Advanced (Amazon link) — Award-winning (Allure Best of Beauty multiple consecutive years). Physician-developed conditioner with BioPeptin Complex. Premium pricing (~$100+); strong conditioning and nourishing claims with high user satisfaction in studies.
RapidBrow Eyebrow Enhancing Serum — Often called best overall in editorial tests. Around $30–35. Peptides, keratin, biotin, hyaluronic acid, plus a prostaglandin analog. Users and testers report thicker, healthier-looking brows; good for sparse areas.
Vegamour GRO Brow Serum — Plant-based standout. Peptide and botanical formula (e.g., mung bean, red clover, curcumin extracts). Hormone-free/prostaglandin-free emphasis; well-liked for sensitive skin and gradual filling of sparse spots.
Obagi Nu-Cil Eyebrow Boosting Serum — Premium/splurge pick (~$100–145). Biotin, hyaluronic acid, and a prostaglandin analog. Strong results reported in tests for fuller, longer-looking brows, sometimes faster than average.

Quick Buying Notes

Budget/natural → Castor oil products or The Ordinary.
Proven volume + value → The Ordinary or Grande.
Targeted growth claims → VieBeauti, RapidBrow, or Obagi.
Clean/plant-based → Vegamour.
Results typically take 4–12 weeks of consistent (usually twice-daily) use and vary by individual. Many effective formulas contain peptides or (in some cases) prostaglandin analogs—the latter can cause irritation, darkening of skin/iris, or other side effects in sensitive users.

These reflect a mix of real sales velocity on Amazon and independent testing rather than pure marketing claims.