How Often Should You Replace Your Makeup Brushes and How Do You Know When a Brush Is Ruined?

Makeup brushes are one of those things people buy once and then use until they fall apart. Most people never think about replacing them until something goes visibly wrong. But brushes that are past their best do not just perform poorly they can affect your skin too. Here is a straightforward guide on how long brushes actually last, the signs that tell you a brush is done, and how to make yours last as long as possible.

How Often Should You Actually Replace Makeup Brushes?

There is no single answer because different brushes wear out at different rates depending on how often you use them, how you clean them and what they are made of. But here are the general guidelines most professional makeup artists follow.

Face brushes - foundation, powder, blush, contour
These are your largest brushes and they take the most product and pressure. With regular use and weekly cleaning they typically last one to two years before the bristles start to lose their shape or shed noticeably.

Eye brushes - eyeshadow, blending, liner
Eye brushes are smaller and more precise. The blending brushes get the most use and wear out faster than flat shader brushes. Expect six months to a year of good performance with regular use before blending ability starts to decline.

Lip brushes
Lip brushes last longest because they absorb the least product and take the least pressure. Two to three years is reasonable for a well-maintained lip brush.

The most honest answer is this - do not replace brushes on a schedule. Replace them when they start showing the signs listed below. A well-made brush that is cleaned regularly and stored properly can last well beyond these timelines.

Signs a Brush Is Ruined

These are the specific things to look for rather than going by time alone.

Shedding bristles that do not stop
All brushes shed a few bristles when they are new. If a brush is shedding constantly after the first few uses and leaving bristles in your makeup, the glue holding the ferrule together has weakened. This brush will not improve and should be replaced.

Bristles that no longer return to shape
A good brush springs back to its original shape after every stroke. If the bristles have permanently fanned out, bent sideways or flattened at the tip and do not recover even after washing and reshaping, the brush has lost its structural integrity. A foundation brush in this state cannot give you an even application no matter how skilled you are.

Rough or scratchy bristles
Quality brush bristles feel soft against your skin. If your brush has become rough, scratchy or feels like it is dragging rather than gliding, the bristles have degraded. This is especially common with synthetic brushes that have been cleaned with harsh products. A brush this rough can cause micro-irritation on the skin over time.

Smell that does not wash out
Old product buildup that has penetrated deep into the ferrule creates a smell that no amount of washing removes. If your brush still smells of stale product after a thorough clean, the buildup has gone too deep. This is a hygiene issue more than a performance one and the brush should go.

Visible discolouration that will not wash out
A light staining from pigmented products is normal. Permanent dark discolouration that does not shift with cleaning means the bristles have absorbed too much product and are no longer neutral, which means they will contaminate future colours.

The MARS Artist Arsenal Makeup Brush Set Pack of 6 covers the core brushes most people need daily - if you are replacing a full set rather than individual brushes, this gives you a clean starting point without having to buy each one separately. Browse the full range in the MARS makeup brush collection including the 12-piece professional set and individual brushes if you only need to replace specific ones.

How to Make Your Brushes Last Longer

Replacing brushes is unavoidable eventually but the right care habits push that timeline out significantly.

Clean them regularly
Face brushes used daily should be washed once a week. Eye brushes should be wiped with a brush cleanser between uses and washed properly every week or two. Product buildup is the single biggest cause of bristle degradation and it is entirely preventable.

Use a gentle cleanser
Harsh soaps and alcohol-based cleaners break down the glue in the ferrule and degrade synthetic bristles faster. A mild baby shampoo or a dedicated brush cleanser is enough to remove product without damaging the bristles.

Dry them horizontally or bristles-down
Never stand a wet brush upright with bristles pointing up. Water runs down into the ferrule and weakens the glue over time, which causes shedding. Lay brushes flat or hang them bristles-down to dry.

Store them loosely
Cramming brushes into a tight pencil case bends the bristles permanently. Store them upright in a brush holder or in a case where the bristles are not compressed against anything.

Reshape after washing
While the bristles are still damp, gently press them back into their original shape and let them dry that way. This single habit keeps brushes performing correctly for significantly longer.

When to Replace vs When to Keep Going

The Bottom Line

There is no fixed expiry date on a makeup brush but there are clear signs that tell you when one is done. Shedding that does not stop, bristles that have permanently lost their shape, rough texture against the skin and smells that survive washing are all signs to replace rather than carry on. The best way to delay reaching that point is to clean your brushes regularly, dry them correctly and store them without compressing the bristles. A well-maintained brush set lasts far longer than most people expect.