Short answer: Compartments help because they group similar items, and research on vision shows grouped items are easier to find than a jumble. More compartments are not automatically better: closed zip pockets hide things. Look for a few open, visible sections sized to your products, with liquids kept separate from everything else.
By the Belle Vault Editorial Team · Sources checked September 29, 2026
Most makeup bags are sold on compartment count. Six pockets. Twelve slots. A zip pocket inside a zip pocket.
Then you get it home, fill it, and discover that the concealer lives in pocket four, except when it migrates to pocket two, and the small zip pocket on the lid is where lipsticks go to be forgotten.
Compartments are supposed to fix the search. Whether they do depends less on how many there are and more on whether you can see into them. There is research on why.
Why grouping works
Study one. A 2011 Princeton study in the Journal of Neuroscience recorded activity in the visual cortex while people looked at several objects at once. Objects in view compete for the brain's processing. When they are visually grouped, part of that competition is settled early, before focused attention is needed, and attention has less work left to do [1].
Study two. An MIT team measured visual clutter in images and compared it to how quickly people found things in them. Published in the Journal of Vision in 2007, their clutter measures tracked search difficulty: more crowded, irregular scenes took longer to search [2].
Neither study involved makeup. Both point the same way. A bag where items are sorted into visible groups asks less of your eyes than a bag where everything overlaps.
Ungrouped
every item competes
Grouped
three sets to scan
Illustration of the grouping principle described by McMains & Kastner, 2011 [1]; clutter and search findings from Rosenholtz et al., 2007 [2].
How much time is at stake? One consumer survey commissioned by the tracker company Pixie, of more than 1,700 U.S. adults in 2016, put time spent looking for misplaced items at 2.5 days a year [3]. That was about keys and remotes, not makeup, and it is a single industry survey rather than a study. We include it only to show that searching is a real, measurable cost.
The counterintuitive part: more compartments can make it worse
If grouping helps, it is tempting to conclude that more compartments help more. The research does not say that. What it says is that grouped items you can see are easier to process.
A closed zip pocket is a group you cannot see. Once it is closed, its contents drop out of the scan entirely, which is exactly how lipsticks get forgotten. Twelve small pockets, each holding one or two things, is not grouping; it is hiding things twelve ways.
Compartment types do different jobs, and it helps to know which is which before you count them.
| Type | Visible when open | Holds upright | Contains leaks |
|---|---|---|---|
| Open slot or sleeve | Yes | Yes | No |
| Elastic loop | Yes | Yes, for slim items | No |
| Removable divider | Yes | Yes, adjustable | Partly |
| Mesh pocket | Partly | No | No |
| Zip pocket | No | No | Yes |
Belle Vault editorial assessment of common designs. Visibility matters most for items used daily; containment matters most for liquids.
Read the table and the useful pattern appears. The only type that contains a leak, the zip pocket, is also the only type you cannot see into. So the one place a closed pocket earns its keep is around liquids. Everywhere else, open and visible does more for you.
A four-zone layout that works in most bags
Upright, in the section that closes or seals. Foundation, serum, remover.
Powders, blush, bronzer. Flat items, stacked no more than two deep.
Slim items in loops or slots so each one shows.
Brushes, tweezers, sharpener. Kept apart so bristles are not crushed.
Belle Vault editorial layout. Put the zone you reach for first where the lid opens first.
Four is not a magic number. It is roughly how most routines divide, and it is few enough that each group stays visible. If a bag forces you into eight or ten separate zones, some of them will end up behind a zipper.
What to do with this
- Count visible sections, not total pockets. Grouping helps when you can see the groups. Closed pockets remove items from view.
- Save closed compartments for liquids. That is the one job where containment beats visibility.
- Sort into about four groups, one layer deep. Liquids, face, eyes and lips, tools. Stacking undoes the benefit.
For how the opening style affects all this, see what "opens flat" really means. Our Travel Makeup Bag page shows its compartment layout in photos, if you want a reference point.
Keep reading
Frequently asked questions
Is a makeup bag with compartments better than one big pouch?
Usually, if the compartments are open and visible. Vision research shows items sorted into visible groups are easier for the brain to process than a jumble. A single pouch stacks everything, so most items are hidden. Compartments you cannot see into, like closed zip pockets, lose much of that benefit.
How many compartments should a makeup bag have?
There is no research-backed number. What matters is that each group stays visible. Most routines divide into about four groups: liquids, face products, eyes and lips, and tools. A bag that splits things into eight or ten small sections tends to push some of them behind zippers.
Should liquids have their own compartment?
Yes. Liquids are the one category where a closed or sealed section is worth losing visibility, because it contains leaks. Keep them upright and separate from powders and brushes, so a loose cap damages one zone instead of the whole bag.
Are removable dividers worth it?
They are useful when your products change size, for example taller bottles for a longer trip. A divider keeps items grouped and upright while staying visible when the bag is open. Fixed slots work well if your routine rarely changes.
Why do I keep losing things in my makeup bag?
Most often because items are stacked or hidden. When products overlap, each one competes for attention and search takes longer, a pattern clutter research has measured. Sorting into a few visible groups, one layer deep, and keeping closed pockets for liquids only, usually fixes it.
Do mesh pockets count as visible?
Partly. You can usually tell what is inside a mesh pocket, but not always which item is which, and mesh does not hold things upright or contain leaks. Mesh works well for flat items like sheet masks or cotton pads.
How we sourced this
We used two peer-reviewed studies on visual attention and clutter to explain why grouping helps; neither tested makeup bags, and we say where we apply their findings. The time-spent-searching figure is a single industry survey, labeled as such. The compartment comparison is our own assessment of common designs.
- McMains, S., & Kastner, S. (2011). Interactions of top-down and bottom-up mechanisms in human visual cortex. Journal of Neuroscience, 31(2), 587–597. jneurosci.org
- Rosenholtz, R., Li, Y., & Nakano, L. (2007). Measuring visual clutter. Journal of Vision, 7(2):17. jov.arvojournals.org
- Pixie (2017). Lost and Found Survey, conducted October 2016 with Survey Sampling International, 1,700+ U.S. respondents. Industry source, not peer-reviewed. prnewswire.com
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