Prep + Prime Moisture Infusion
1.7 fl. oz. for $41
Last Updated:12.31.2014
Jar Packaging:No
Tested on animals:Yes
Review Overview

This is a very good, lightweight serum that works well under makeup (in other words, you won’t need a separate foundation primer). Best for normal to oily skin, the formula includes a good selection of smoothing and hydrating ingredients along with lots of antioxidants. A drawback keeping this from earning our top rating is that some of the antioxidant plant extracts have irritant potential due to their fragrant components. However, on balance, this serum contains far more beneficial than detrimental ingredients, and the potentially bad ingredients aren’t present in amounts of concern. Because you can find lightweight serums without questionable ingredients, you may want to keep shopping—but if you decide to try this Prep + Prime product, its formula definitely has a lot going for it.

Note: allow enough time for this to absorb and set before applying makeup over it. Doing this will prevent the serum from balling up on skin as you apply foundation.


A lightweight serum that saturates the skin with a concentrated boost of hydration, making it a unique hybrid between skincare and priming. Gently soothes, revives and replenishes the skin while preparing it for foundation.


Water, Methyl Trimethicone, Butylene Glycol, Dimethicone, Biosaccharide Gum - 1, Bis-Peg-18 Methyl Ether Dimethyl Silane, Glycerin, PEG-60 Hydrogenated Castor Oil, Methyl Gluceth-20, Silica, Tocopheryl Acetate, Algae Extract, Sodium Hyaluronate, Yeast Extract, Citrus Reticulata (Tangerine) Peel Extract, Aloe Barbadensis Leaf Extract, Hordeum Vulgare (Barley) Extract, Polygonum Cuspidatum Root Extract, Cucumis Sativus (Cucumber) Fruit Extract, Vitis Vinifera (Grape) Seed Extract, Rosmarinus Officinalis (Rosemary) Extract, Selaginella Tamariscina (Spike Moss) Extract, Humulus Lupulus (Hops) Extract, Padina Pavonica Thallus Extract, Astrocaryum Murumuru Seed Butter, Helianthus Annuus (Sunflower) Seedcake, Cocos Nucifera (Coconut) Oil, Punica Granatum (Pomegranate) Fruit Juice, Caffeine, Trehalose, Propylene Glycol Dicaprate, Dipotassium Glycyrrhizate, Sodium PCA, Phytantriol, Ethylhexyl Palmitate, Acetyl Carnitine Hcl, Caprylyl Glycol, Carbomer, Tromethamine, Polymethylsilsesquioxane, Xanthan Gum, Silica Dimethyl Silylate, Linolenic Acid, Linoleic Acid, Disodium EDTA, Nordihydroguaiaretic Acid, Ethylbisiminomethylguaiacol Manganese Chloride, Phenoxyethanol

Brand Overview

M.A.C. Cosmetics At-A-Glance

What more can one say for this long-standing makeup line whose products have spoken eloquently for themselves for years? In many ways, M.A.C. Cosmetics is a pivotal line not only for makeup artists but also for any in-the-know cosmetics consumer. Although M.A.C. has several singularly outstanding products, they generally excel by virtue of the range of choices offered. The color selection for everything from lipsticks to foundations is exceptional. Most of the makeup brushes are beautiful, full, and soft, as well as properly sized to fit the contours of the face and eyes.

When it comes to skincare you may be tempted to dismiss the small assortment M.A.C. offers and skip right to their makeup with its well-earned positive reputation. But doing so would mean missing a handful of beautifully formulated products that are worth trying. By no means is M.A.C.'s skin-care line one-stop shopping (at least not if you have blemishes, skin discolorations, or require more than a couple options per category), but you'll find more than just the color products impressive here, and the prices aren't unreasonable either!

M.A.C.'s salespeople are often trained makeup artists, too. This is especially true in the freestanding M.A.C. boutiques, where the staff tends to be true makeup artists.

Note: M.A.C. sets itself apart from other beauty brands by staying ahead of the curve by launching a seemingly-constant rotation of impressive limited edition products, usually with fashion-forward themes. Though it's impossible to review every limited edition product, many of M.A.C.'s are as impressive as those in their permanent collection.

Strengths: Some impressive moisturizers; praiseworthy foundations in a mostly gorgeous range of shades; good concealers; several great powder-based products including blush, bronzer, and eyeshadow in various finishes; dizzying array of lipstick shades in mostly sumptuous formulas; several very good mascaras (regular and waterproof); top-notch makeup brushes; many of the Prep + Prime products work as claimed.

Weaknesses:A few products with high levels of potential skin irritants.

For more information about M.A.C. Cosmetics call (800) 588-0070 or visit www.maccosmetics.com.

About the Experts

The new Beautypedia Team proudly and unequivocally maintains the commitment to help you find the best products possible for your skin. We do this by relentlessly pursuing and relying on published scientific research so you will have unbiased information on what works and what doesn't-and the sneaky ways you could be making your skin worse, not better!

The Beautypedia Team reviews all products using the same research, criteria, and objectivity, whether the product being reviewed is from Paula's Choice or another brand.

Member Comments
Summary of Member Comments
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Acne Prone Skin

I have used this before as I have combo acne prone skin. It really helped with those little flakes. However, I stopped using it as many people state primers can clog the pores and cause/worsen the acne. Is this product acne friendly? :)

Reviewed by
Candace W
Beautypedia Team Response

Hey there!  Thanks for your feedback and for asking -- we'd recommend trying out a sample first if you can.  It does contain some oils (sunflower, coconut) which some with acne-prone skin may find to be too heavy.  Anything has the potential to clog pores, it just depends on the individual!  You can't go wrong with trying a sample and patch-testing, though.  Good luck!  :)

mac moisture infusion

I used it before applying my foundation. Within minutes my makeup came down and i did not know how to fix. Until i washed my face and re did my makeup without this moisture infusion. Can anyone help me know how to use it the right way?

Reviewed by
mac prep + prime
Beautypedia Team Response

Hi there!  MAC recommends using this product after cleansing and before moisturizing (if you're using one) by blending it into skin with your fingertips.  Perhaps try giving it some extra time to dry before moving on to your next step?  If not, it may just not work with your particular skin type.  :(

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