MAC M·A·CStack Waterproof Mascara — Black Stack (.41 fl oz) | Buildable Volume & Smudge‑Proof Wear

M·A·CStack Waterproof Mascara in Black Stack is a buildable, clump-resistant formula that layers for customizable volume and length while staying waterproof and smudge-proof.

Designed to add dramatic impact without flaking, this M·A·C mascara offers a balance of high-volume payoff and smooth application. Its texture allows repeated layering so you can dial in anything from natural definition to bold, full lashes. The waterproof, tear-resistant finish helps the look last through humidity, sweat, and light water exposure, making it a dependable choice for long days and special events.

How does this mascara build volume without clumping?

The formula is engineered to remain flexible as layers are added, preventing the stiff, chunky buildup that many volumizing mascaras create. A precision wand deposits product evenly across lashes so each coat adheres smoothly.

• Thin-but-pigmented formula that stacks cleanly
• Brush design separates lashes while coating each strand
• Clump-resistant binders maintain a soft finish
• Applies multiple coats without feeling heavy

Will it stay put in water, sweat, or tears?

This mascara is formulated to be waterproof and smudge-proof, offering resistance to light moisture and perspiration. While it handles everyday exposure well, gentle makeup removers designed for waterproof products remove it more effectively than regular cleansers.

• Waterproof and tear-resistant finish for lasting wear
• Smudge-proof performance during humidity or activity
• Removes with oil-based or waterproof removers

How does the wand shape affect application and lash separation?

The applicator is designed to reach root to tip, coating lashes evenly to enhance length and lift. Its bristle arrangement separates strands to reduce clumping while building thickness where needed.

• Precision bristles for even product distribution
• Tapers to reach inner and lower lashes cleanly
• Helps lift and fan lashes for a wider-eyed effect

What results can I expect after layering coats?

You can customize intensity: one or two coats for natural definition, several coats for visibly fuller, dramatic lashes. The formula keeps lashes flexible, so layered looks retain movement rather than appearing rigid.

• Buildable coverage from subtle to dramatic
• Length and volume increase progressively
• No crunchy or spidery finish when layered correctly

Who is this for: M·A·CStack Waterproof Mascara in Black Stack suits anyone seeking a versatile, long-wear mascara that can be layered for subtle daytime definition or bold evening volume. It’s a good match for people with normal to oily skin types who want a reliable, water-resistant finish for active days, special occasions, or humid climates. If you prefer formulas that remove cleanly with a waterproof remover and value lash separation plus buildable thickness, this product delivers.

Ingredients

Isododecane, Water\Aqua\Eau, Nylon-12, Dimethicone Silylate, Sorbitan Olivate, Trisiloxane, Sorbitan Tristearate, Kaolin, Silica Silylate, Polyisobutene, Copernicia Cerifera (Carnauba) Wax\ Copernicia Cerifera Cera \Cire De Carnauba, Trihydroxystearin, Diisopropyl Adipate, Cholesterol, Pantethine, Methicone, Caprylyl Glycol, Panthenol, Trimethylsiloxysilicate, Hexylene Glycol, Propylene Carbonate, Silica, Nylon-6, Microcrystalline Wax\Cera Microcristallina\Cire Microcristalline, Hectorite, Quaternium-90 Bentonite, Citric Acid, Phenoxyethanol, Magnesium Salicylate, Potassium Sorbate, Iron Oxides (Ci 77499), Mica, Titanium Dioxide (Ci 77891) ILN50368