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Summary
Macstack Mascara Superstack: Stack on infinite layers of volume + length with this never-before-seen endlessly buildable, clump resistant volumizing mascara. Gives you customizable volume from natural to next-level. -- Now in an all-new brown hue inspired by MAC's iconic Lip Pencil in Chestnut.
Benefits
- Mega Brush: Builds up longer or upper eyelashes
- Buildable lash volume, from natural to next-level
- Instant lash length
- 24-hour wear
- Clump-resistant mascara
- Flake-resistant
- Ophthalmologist tested
- Appropriate for contact lens wearer
Research Results
- 95% saw gravity-defying lash volume*
- 95% saw instant eyelash lift and length*
- 95% said mascara builds endlessly*
- *Consumer testing on 111 women after using Superstack Mega Brush for one week
Item 2592858
Press the Mega mascara brush into lashes close to roots and shimmy brush through from roots to tips.
Keep stacking the weightless, clump-resistant mascara formula for limitless volume and length potential.
Water\Aqua\Eau, Silica, Stearic Acid, Glyceryl Stearate, Synthetic Beeswax, Paraffin, Polyisobutene, Kaolin, Acrylates/Ethylhexyl Acrylate Copolymer, Aminomethyl Propanediol, Copernicia Cerifera (Carnauba) Wax\ Copernicia Cerifera Cera \Cire De Carnauba, Vp/Eicosene Copolymer, Isostearic Acid, Tocopheryl Acetate, Panthenol, Pantethine, Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer, Peg-9 Dimethicone, Caprylyl Glycol, Hydroxyethylcellulose, Nylon-6, Pvp, Laureth-21, Simethicone, Phenethyl Alcohol, 1,2-Hexanediol, Disodium Edta, Chloroxylenol, Potassium Sorbate, Phenoxyethanol, [+/- Iron Oxides (CI 77491), Iron Oxides (CI 77492), Iron Oxides (CI 77499), Mica, Yellow 5 Lake (CI 19140), Chromium Oxide Greens (CI 77288), Chromium Hydroxide Green (CI 77289), Carmine (CI 75470), Titanium Dioxide (CI 77891), Bismuth Oxychloride (CI 77163), Yellow 5 (CI 19140), Blue 1 (CI 42090), Blue 1 Lake (CI 42090), Ultramarines (CI 77007), Black 2 (CI 77266)].
This brand is excluded from most Ulta Beauty coupons.
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Best For
Describe Yourself
Most Helpful Positive Review
Easy to Apply, No Spider Lashes, Non Clumping,
Hello my lovely readers! I was recently gifted the new M·A·CStack Micro Brush Mascara by Bzzagent in exchange for a review. The M·A·CStack Micro Brush Mascara retails for about $28, and claims that it's clump resistant, layerable, separates and defines lashes, is nonflaking, and lasts up to 24 hour...
Most Helpful Critical Review
Can see the advantages, but not for me
For me, I don't know if I will be repurchasing this mascara. I have used it twice since receiving it and while the brand is great and I really like the color, this mascara is not a great fit for me. It is a very wet mascara, and stays wet for a while. I have the traditional very straight Asian eyela...
1622 results
This is awesome!
Verified Reviewer
Community Content
Reviewed at

Comments about M·A·CStack Mascara - Stack Black
I received this product for free from Topbox Marketing for testing and review purposes. I love it! MAC never disappoints and this mascara was exactly what I need it. No clumps, separates eyelashes well while giving volume. Makes them look really long. Highly recommend.

No I won't buy again.
It was not what I was expecting after all the hype about it on the Internet. I didn't like it at all, it leaves lots of clumps.
Loving the lift
Verified Reviewer
Community Content
Reviewed at

Comments about M·A·CStack Mascara - Chestnut Stack
I'm really loving how this mascara lifts my eyelashes without them looking clumpy. The formula gives my lashes some volume, but keep some separated and wispy looking. This mascara contains argon oil and plant-based waxes which makes it 91% natural ingredients. There's no smudging and this formula is said to be clump proof. So far, I really love this product. The brush has a contour to it to lift the lashes but at the same time giving them volume. Overall, I love the results and can't wait to purchase again!



Love
Verified Reviewer
Community Content
Reviewed at

Comments about M·A·CStack Mascara - Stack Black
Love this mascara! Absolutely beautiful great quality! I really think this helps me achieve a great length and volume without it looking too clumpy or overdone! Lashes feel nourished and moisturized as well which I never see with most mascaras on the market! Would definitely recommend this product! So glad that I received this product for free from Topbox Marketing for testing and review purposes!

Best Mascara Ever
Verified Reviewer
Community Content
Reviewed at

The MAC Chestnut Mascara is a game-changer for anyone who loves a softer, more natural lash look. Unlike traditional black mascara, the deep chestnut brown shade gives your lashes definition without being too harsh — perfect for daytime looks, no-makeup makeup days, or enhancing lighter hair colors. It's also a subtle way to make your eyes pop without overpowering your makeup. The packaging is classic MAC — sleek, black, and professional. The wand itself has a slightly tapered, fluffy brush that makes it easy to coat every lash from root to tip.
Questions
Q&A
Showing 5 out of 12 Questions
- Q
Which brush is best for lengthening lashes, the micro or superstack?
- Asked by Blonddej
- Official Answer By MACThanks for reaching out! Macstack Mascara Superstack focuses on lifting, separating, and defining lashes, while MAC In Extreme Dimension 3D Volumizing Black Lash Mascara features a large molded brush designed to extend length, add dense volume, and create curls, while conditioning for softness and flexibility.Was this answer helpful to you
- Q
I brought the stack mascara. Is it a liquid solution.
- Asked by Peace
- Official Answer By MACMACStack Mascara is a buildable, lightweight mascara that layers easily without clumping. It’s designed to give customizable volume and length, thanks to its smooth liquid texture and flexible brushWas this answer helpful to you
- Q
Is this cruelty free? Peta ? Leaping bunny certified?
- Asked by Deb
- Official Answer By MACThanks for reaching out. M·A·C does not test on animals. We do not own any animal testing facilities, and we never ask others to test on animals for us. While some governments conduct animal testing to prove safety before they will allow us to sell our products, M·A·C has never tested on animals, and we continue to be a leader in the movement to end animal testing globally. To this end, we are proud to partner with IIVS (Institute for In Vitro Sciences) to expand the use and acceptance of non-animal testing methods. More info here: bit.ly/1RPhyXe.Was this answer helpful to you
- Q
Is this mascara waterproof
- Asked by JP
- Official Answer By MACHello there! There is a waterproof version named MAC MACStack Waterproof Mascara.. It continuously builds with clump-resistant volumizing benefits that stacks on infinite layers of volume and length in a waterproof and smudge-proof formula.Was this answer helpful to you
- Q
What is the weight of this item in ounces?
- Asked by lola
- Official Answer By MACHey there, and thanks for reaching out! Chestnut Macstack Mascara Superstack contains 12 ML or 0.405768 ounces. Enjoy!Was this answer helpful to you