MAC Stacked To The Max Lash Duo — MACStack Mascara + Legit Lift Primer .41 fl oz each, 24‑Hour Wear & Buildable Volume

The M.A.C Stacked To The Max M.A.CStack Lash Duo pairs a buildable, 24‑hour mascara with a conditioning Legit Lift primer to maximize lift, separation and long wear.

This two‑piece set from M·A·C contains a high‑performance MACStack mascara and the Legit Lift lash primer, each in a .41 fl oz tube. The duo is designed to lengthen, lift and define lashes while resisting clumps, flakes and smudging throughout the day. The primer conditions with castor seed oil, vitamin E and pro‑vitamin B5 derivatives, and it’s formulated to work under any mascara to boost hold and visible lift.

How does the MACStack mascara perform through a long day?

MACStack mascara is formulated for extended wear—engineered to stay put up to 24 hours while minimizing clumping and flaking. The brush and formula work together to coat each lash for buildable volume and definition without heavy residue.

• 24‑hour wear performance for events or long shifts
• Clump‑resistant formula for separated lashes
• Flake‑ and smudge‑resistant finish for cleaner under‑eye area
• Buildable coverage from natural to dramatic

What benefits does the Legit Lift primer add before mascara?

Legit Lift primer prepares and conditions lashes while creating lift and extra hold for whatever mascara you apply on top. The lightweight primer adheres to lashes to amplify curl and help the mascara maintain shape and separation all day.

• Maximizes visible lift and curl retention
• Formulated to minimize smudging and flaking under mascara
• Compatible with all mascaras, so it can be layered with favorite formulas
• Conditioning ingredients help support lash health

What ingredients help condition lashes in this duo?

The Legit Lift primer contains conditioning agents chosen to nourish the lash surface while supporting product performance. Ingredients like castor seed oil, vitamin E and pro‑vitamin B5 derivatives work together to smooth and hydrate lashes without weighing them down.

• Castor seed oil to moisturize and help lashes look smoother
• Vitamin E for antioxidant support and softer lash texture
• Pro‑vitamin B5 derivatives to help improve appearance and manageability of lashes
• Lightweight base designed to accept mascara without clumping

How should I use the primer and mascara together for best results?

For optimal lift and longevity, apply one even coat of Legit Lift primer to clean, dry lashes, combing from root to tip. Allow the primer to set for a few seconds, then apply MACStack mascara in sweeping strokes—start at the base and wiggle through to the ends for separation and volume.

• Apply a thin layer of primer to both upper and lower lashes
• Let primer dry slightly before layering mascara
• Use multiple mascara passes for more volume, avoiding heavy clumps
• Touch up sparse areas with vertical wiggling motions for lift

Who this is for: This M·A·C duo suits anyone seeking long‑wearing, lifted lashes with added conditioning—ideal for people who want smudge‑resistant performance for long days or events, or those who layer a primer under their favorite mascara to improve curl retention and lash feel. It’s formulated to work with all mascara types and is particularly useful for users who want buildable volume without flaking or clumping.