MAC

MAC Stack Mascara.

Eye Makeup

About this product

MAC Stack Mascara is an eye makeup product from MAC, with a waterproof version also available, designed to enhance the lashes when applied in coats.

Full ingredients

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)

Guru Score

82%

Yay

Early verdict · Few reviews so far

What the gurus are saying

Straight-up lift after just one or two quick coats is what this mascara is winning fans for, and the difference shows right away. The gurus who tried it are plainly smitten, with the waterproof version named as a go-to and the formula described as really wowing them. Only two have weighed in so far, so there's not much to go on yet.

Synthesized from 2 expert reviews · most recent take February 2025

What they liked

Lifts lashes straight up
Easy to see the difference
Wowing reviewer, mascara obsession

What they flagged

Nothing. None of the experts who reviewed it raised a problem.

Type

Eye MakeupStick & roll-on

Key actives

Vitamin E

Formula notes

Fragrance-freeNo drying alcohol

Where to buy

Sephora → Ulta → Amazon → Google →

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Scan it in the shopFree iPhone app. Scores in the aisle.

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored

Mixed Makeup

1.46M subs

✓Yay

"It kind of creates a little shelf for them, which I love. This is the MAC Stack Mascara, and I've kind of been obsessed with it. [...] It makes the lashes so long and dark. This is a brand new bottle, by the way, for anybody who tries to check me. [...] I always get so many mascaras sent to me, so I'm like, let's try out different ones, and this one has been really wowing me. [...] It makes the lashes pop immediately. I [...] think it makes the lashes even longer. I'm obsessed."

Robert Welsh

1.11M subs

✓Yay

"I'm going to do my go-to, the MAC Stack Waterproof, and I'm just doing like one, two quick coats so it'll be easy to see the difference. The lashes are sticking so straight up, really nice lift."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Sunscreen filters

Sun protection is the best evidenced way to slow visible ageing, and the filters are what does the work. Mineral and chemical filters both protect when a product is applied thickly enough and often enough, which is where most people fall short rather than on the choice of filter.

Source: DermNet

Humectants and emollients

Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.

Source: DermNet

Vitamin E

Vitamin E is an antioxidant, and it is often in a formula to keep the other ingredients stable rather than as the active itself. It pairs well with vitamin C, though on its own the evidence for visible change is limited.

Source: NIH, National Library of Medicine

Frequently asked.

What is MAC Stack Mascara?

MAC Stack Mascara is an eye makeup product from MAC, with a waterproof version also available, designed to enhance the lashes when applied in coats.

Is MAC Stack Mascara worth it?

Yes. All 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 82%.

What is MAC Stack Mascara's Guru Score?

MAC Stack Mascara holds a Guru Score of 82%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.