Some trends leave more of a lasting mark than others – here are the ones that are worst for your hair…

Hair dye, hair bands, tight braids, which ones are the worst for your hair?

Doubling up

Too much of a good thing means disaster for your hair. As soon as you combine more than one chemical process (for instance, relaxing + colour or perm + colour) will compromise your hair to a great extent as the protein structure is altered.

If your hair is overprocessed, you need to treat it with both protein and moisture to reinforce and ultimately repair it. If this sounds like you, speak to your hairdresser and they will be able to recommend something to help. But prevention is always better than cure, so rather leave some time between treatments.

B(l)each babe

Bleaching your hair is the one chemical process that can ruin your hair all by itself if applied irresponsibly.

WIN a R 2,000 Woolworths Voucher

Subscribe to our Free Daily All4Women Newsletter to enter

If you over-bleach your hair, it will lose the ability to retain moisture and become coarse and brittle. This is unfortunately the perfect condition for breakage, which has left many a bleached blonde with the need for an impromptu haircut.

To preserve the integrity of your hair during bleaching, ask your hair stylist to use a product like Olaplex or L’Oreal’s Smartbond. For home care, use regular moisturising treatments to maintain the condition of your hair.

Olga Ekaterincheva – @123rf.com

Bone straight

If chemical straightening is too permanent, you can always turn to your trusty flatiron right? Well, bad news, it might be damaging your hair.

Straightening our hair to Morticia levels was practically a second job to my friends and me ten years ago – and we weren’t bothered about heat protection. A year or so later, we all had thin hair from the mid-lengths downward, and the bleached blondes among us ended up with some of the above mentioned impromptu haircuts.

To combat heat damage, save up for a straightener with ceramic plates. And always, ALWAYS use a heat protection product. My favourite is Kerastase Nectar Thermique, R440 (Retailbox) – it smells amazing and a tube lasts forever. Always stick to the recommended heat settings if your straightener is adjustable (colder is not necessarily better, for example) and work with long, even strokes to avoid overlapping the same strands of hair too many times.

DIY fashion colours

Dyeing your hair a funky colour doesn’t necessarily mean your hair is going to end up ruined. But it does get tricky if you need to lighten your hair first. The bleach in pre-lightening kits can react unpredictably and leave you with a whole lot more problems than you bargained for.

Read more: Beauty mistakes make-up artists want you to stop making