Best Eyelash Primers Under $100 (2026)

Selections were ranked by a composite value score combining verified user ratings, ingredient profile, applicator design, and price under $100

This roundup covers eyelash primers and lash-enhancing serums under $100 that improve lash appearance, prep lashes for mascara, or support growth with active ingredients. Picks were chosen by value score, ingredient transparency, applicator design, and user ratings to highlight effective, evidence-forward options

Top Picks

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    Stacy Lash Lash Shampoo & Growth Serum Kit

    Stacy Lash Lash Shampoo & Growth Serum Kit

    STACY LASH • ★ 4.1/5 • Budget

    Foaming lash cleanser with a brush, plus an eyelash growth serum kit for thicker, longer lashes. Customers note easy use and salon-like cleansing; some report irritation or mixed lash longevity

    • lash cleanser with brush included
    • growth serum with biotin and peptides
    • at-home lash therapy and thickness
    Check current price on Amazon →
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Buying Guide

Know the product category

Differentiate between priming formulas that smooth and darken lashes before mascara and growth serums that contain peptides or plant extracts intended for long-term improvement

Check active ingredients

Look for peptides, biotin, or plant extracts for growth claims and avoid irritants if you have sensitive eyes; formulas listed include peptide and multi-plant extract options

Consider applicator type

Brush-in applicators or precise wands affect ease of application and product distribution — many top picks include brush applicators for controlled use

Review formulation details

Choose oil-free or water-based serums if you wear lash extensions or have oil-sensitive skin; several options on this list are oil-free or vegan-friendly

Use ratings and value score

Combine user ratings and value scoring to balance efficacy and cost — the selection emphasizes high-rated, cost-effective formulas under $100