You're brushing your hair and notice lots of little strands in the sink. Your ends seem thinner than they used to. Your hair feels rough, tangles constantly and no amount of conditioner seems to fix it.
It could be hair breakage.
Hair is strong, but it isn't indestructible. Everything from your straighteners to your summer holiday can gradually weaken the structure of each strand.
Once that damage accumulates, hair becomes less resilient and more likely to snap.
So, what's actually happening, and what can you do about it?
First, there's an important difference.
Shedding is when the entire hair naturally falls from the follicle as part of its growth cycle. You'll generally see a full-length strand, sometimes with a small bulb at the root end.
Breakage happens somewhere along the hair shaft. Instead of falling naturally from the root, weakened hair physically snaps.
That can leave you with shorter pieces, wispy ends, uneven lengths and seemingly endless flyaways.
If your hair is breaking, there's usually something compromising the strength of the strand.
Here are five of the biggest culprits.
Straighteners, curling tongs and hairdryers all use heat to temporarily change how your hair looks.
But repeatedly exposing your hair to high temperatures can damage the cuticle, which is the protective outer layer of each strand.
Excessive heat can also affect the proteins that give hair its strength.
Over time, you may notice your hair becoming:
- Drier
- Rougher
- Less elastic
- More prone to split ends
- Easier to snap
You don't necessarily have to give up heat completely. Reduce the temperature where possible, use heat protection and avoid repeatedly passing straighteners or curling tongs over the same sections.
If you diffuse your waves, do it on a lower setting, instead of automatically turning it up to the hottest.
Your hair goes through more than you might realise.
UV exposure, chlorine, salt water and cold weather can all affect its condition.
UV radiation can damage proteins within the hair and contribute to changes in colour, dryness and reduced strength.
Chlorinated pool water and repeated exposure to seawater can also leave hair feeling dry and rough, particularly when combined with lots of sunshine.
Cold weather brings different challenges. Lower humidity, wind and the constant transition between cold outdoor air and heated indoor environments can leave hair feeling drier and more vulnerable to tangling and friction.
This doesn't mean you should avoid swimming or sunshine.
Instead, give your hair a little extra attention during periods when it's being exposed to more environmental stress. Rinse after swimming, protect it from prolonged sun exposure and increase conditioning when it genuinely feels dry.
Sometimes it's the everyday things that do the most damage. Your day-to-day routine could actually be working against you.
Hair strands experience friction whenever they rub against something else. If the hair is already weakened, repeated friction can contribute to breakage.
Common causes include:
- Aggressively towel drying
- Brushing through stubborn knots
- Wearing very tight ponytails or buns
- Using hair ties that pull on the same area repeatedly
- Sleeping with wet hair
- Constantly touching or manipulating your hair
Even the way you dry your hair matters.
Rather than rubbing your waves vigorously with a traditional bath towel, gently squeeze out excess water and use a microfibre towel or wrap.
When detangling, work from the ends upwards instead of dragging a brush through knots from root to tip.
Small changes reduce the amount of unnecessary stress you're putting your hair through.
If you regularly colour or bleach your hair, you may already recognise the signs of chemical damage.
Bleaching works by penetrating the hair so it can remove natural pigment. In the process, the hair's structure can be affected too.
Repeated bleaching or overlapping bleach onto previously lightened sections can leave strands more porous, dry and fragile.
Chemical colouring processes can also contribute to damage, particularly when they're performed frequently or on hair that's already compromised.
That's why heavily processed hair can sometimes feel completely different from healthy new growth.
You might notice that your roots feel strong and smooth while your older, colour-treated ends are rough, tangled and snapping.
Those older lengths have simply accumulated more damage.
This one is particularly relevant if you've already got a fairly established haircare routine.
Healthy hair needs moisture and structural strength.
If your hair becomes very dry, it can lose flexibility and become brittle, making strands more likely to snap under tension.
But constantly adding moisture isn't necessarily the solution either.
Hair that's overloaded with rich conditioning treatments can become excessively soft, limp and stretchy. If your waves feel almost mushy when wet and don't spring back properly, your routine may have become too moisture-heavy.
Protein can provide additional structural support for weakened hair, while conditioning keeps it flexible and manageable.
You don’t need to pick a side; you need to find the right balance.
Hair breakage rarely appears completely out of nowhere. There are usually other clues that your strands are becoming compromised.
Look out for:
- Rough or straw-like texture: damaged strands can start feeling coarse, unusually dry or rough.
- Hair snapping easily: you may notice more breakage when brushing, detangling or tying your hair up.
- Dullness and frizz: a roughened hair surface reflects less light and struggles to retain moisture.
- Dry, split ends: the ends are the oldest and most exposed section of your hair, so damage often shows here first.
- More tangles: damaged strands have a rougher surface and are more likely to catch against each other.
One of these signs alone doesn't necessarily tell you exactly what has caused the damage. But if you're recognising several of them, it's probably time to look at both your routine and what your hair is regularly exposed to.
This is where it's important to be realistic.
Hair outside the scalp is not living tissue, so a damaged strand can't biologically heal itself in the same way your skin can.
What you can do is use targeted haircare to improve the condition, strength, moisture and manageability of damaged strands while protecting them against further breakage.
And that's where the difference between simply making damaged hair feel softer and taking a more complete approach becomes important.
If your hair is showing several of the signs above, throwing another conditioner at it might not address everything that's going on.
That's why we've created the Merwave Repair & Restore Kit around three different stages of damaged-hair care.
Repair: The Plex Treatment targets weakened hair bonds, helping strengthen damaged hair and reduce breakage.
Restore: The Deep Conditioning Mask replenishes lost moisture to help dry, rough and straw-like hair feel softer, smoother and more manageable.
Seal: The lightweight Hair Oil smooths vulnerable lengths and ends, helping lock in moisture while reducing dryness, tangling and further breakage.
Rather than asking one product to do everything, you've got three treatments addressing different aspects of damaged hair in one routine.
Most importantly, think about why your hair became damaged in the first place.
Repair treatments can support compromised strands, but prevention matters too. Turn the straighteners down. Protect your hair when you're swimming. Be gentler when you're detangling. Give bleached hair extra care. And learn when your waves need moisture versus structural support.
The less damage you're creating, the less breakage you'll have to deal with later.
