MAC Prep + Prime 24-Hour Extend Eye Base
- Up to 24 hours of eyeshadow wear claimed
- 12 ml bottle
- Eyelid primer, not a face foundation
- Matte finish, lightweight and non-sticky
- Vitamin E infused, ophthalmologist and dermatologist tested
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An eyelid primer that holds eyeshadow in place and boosts its color through a long day or night out. It is not a face foundation despite the category, so it only serves the lids.
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ASIN: B01778OZA8Category: Makeup Foundations
Overview
MAC made this eye base to go on the lids before shadow, giving powder a smooth, slightly grippy surface to cling to. It stops creasing and fading and makes shadow colors read brighter.
Crease control on oily lids is the reason to own it, since shadow without a base tends to gather in the fold within hours. It does nothing for the rest of the face, so anyone shopping for foundation is in the wrong place.
Who it's for
Long days, weddings and nights out where shadow has to last suit it, along with lids that get oily. People who rarely wear eyeshadow have little use for a dedicated lid base.
Pros and cons
- Stops shadow creasing and fading
- Intensifies eyeshadow color
- Lightweight, non-sticky feel
- Eyelid use only
- Shade or tint not described
- Ingredients beyond vitamin E not listed
Performance notes
A primer works by filling fine lines on the lid and creating a tacky film that powder pigment grips. That film also blocks lid oils from breaking down the shadow, which is what causes creasing. A thin layer set for a moment before shadow gives the firmest grip, while too much turns slick.
Specifications
| Brand | Prep |
|---|---|
| Dimensions & fit | |
| Item Weight | 0.04 pounds |
| Item Dimensions | 17.7 × 15.7 × 11.8 inches |
| Capacity & performance | |
| Item Volume | 0.4 fl oz |
| Construction & materials | |
| Finish Types | Matte |
| Material Features | Infused With Vitamin E |
| Included components | |
| Package Type Name | Bottle |
| Other details | |
| Skin Tone | All |
| Skin Type | All |
| Coverage | Medium To Full |
| Item Form | Liquid |
| Product Benefits | Extends eye shadow wear by 24 hours Helps eye shadow stay colour-true Prevents eye shadow from fading and creasing Lightweight Ophthalmologist tested Dermatologist tested Non-acnegenic For all skin types |
| Number Of Items | 1 |
| Container Type | Bottle |
| Specialty | Eye Makeup |
Frequently asked questions
How do I remove MAC Prep + Prime Extend Eye Base at night?
The listing gives no removal directions. Take it off with your usual eye makeup remover along with the shadow on top.
Is MAC Prep + Prime Extend Eye Base a foundation?
No. It is an eyelid primer that goes under eyeshadow, not a face foundation.
How long does the eye base hold shadow?
MAC claims up to 24 hours of eyeshadow wear.
Is it safe for sensitive eyes?
It is listed as ophthalmologist tested and dermatologist tested.