lash primer mascara

A lash primer coats and conditions lashes to enhance apparent length and thickness, help mascara adhere better, and extend wear. Many primers also contain conditioning ingredients intended to improve lash health over time.

Apply primer from the lash base to the tip, allow it to set or dry (commonly about 30–60 seconds), then apply mascara on top for best buildup, adhesion, and wear.

Primer sizes commonly range from about .24 fl oz up to .44 fl oz, so most options are small and travel-friendly.

Primers commonly claim to nourish and strengthen lashes, deliver conditioning benefits over time using vitamins and actives, and help lashes look fuller and healthier when followed by mascara.

Some products are sold as two-in-one or dual-sided formats that include both a primer and a mascara in the same tube or a double-ended design, allowing you to apply both steps with one product.

Look for primers labeled ophthalmologist-tested or explicitly marked as suitable for sensitive eyes and contact lens wearers. Other helpful features include formulations that omit parabens and other common irritants.

Wait until the primer has set or dried—commonly about 30 to 60 seconds—before applying mascara on top.