Immediately boosts the volume, definition, and length of lashes before mascara application, while also nourishing and strengthening for healthier, thicker lashes over time.
Reviews
4.9
265 ratings
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The results are astounding; I never thought a mascara would increase the length of my lashes. Where has this been all the time I have been wearing makeup! I love the look with the UnderSense Primer under my Senegence Mascara.
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Helen · August 22, 2026
I saw the reviews for this lash primer and decided to try it. I have been using it for a couple months now and I really notice a difference when I use it before applying my mascara versus not using it. It really provides better length prior to mascara application and it also allows my mascara to go on much smoother. This is a new staple in my makeup drawer!
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Lauren · August 4, 2026
I love this primer! It definitely makes a huge difference in the volume of my lashes.