mascara serum

Apply primer first, then wait for it to dry (commonly ~30–60 seconds) before applying your mascara. Some serums and primers are sold as companion products for a specific mascara; reviewers often note when a primer or serum is compatible with mascara use.

The results include traditional lash-enhancing serums, brush-on serums/primers, dedicated mascara bases and primers, and 2-in-1 formulas that combine a serum with a primer.

Reviewer reports commonly note visible lash growth or thickening within about 1–3 weeks. Product descriptions and manufacturer directions describe multi-week regimens, with fuller improvement often requiring continued use for around three months.

Descriptions advertise benefits such as lengthening, thickening, volumizing, conditioning, improved mascara payoff (priming), curl or lift hold, instant length/lift effects, and in some cases waterproof or moisture-resistant performance and tinting/white-primer effects to amplify mascara.