Grabbing for a trusty can of dry shampoo, you spritz it in and quickly attempt to shake the white bits.
The result is hair looks somewhat less greasy, but it still feels grim and is in urgent need of a wash later.
This is when it was once, at least.
But there's a new spray that's got the beauty world talking – Living Proof's Advanced Clean Dry Shampoo.
So we decided to place it to the test.
The science-first hair brand already has a bestselling dry shampoo (the classic, regular kind) but then listened to customers who felt these items generally often 'underdeliver' on performance.
Most importantly, their hair didn't feel any cleaner.
While no-one can pretend a dry shampoo compares to thoroughly cleansing hair under a shower, formulations can perform better – and this is proof.
Designed to 'deliver the benefits of a rinse-out shampoo, with no water', it works by depositing absorbent powder into roots, then allowing it to take Thirty seconds before using a brush or fingertips to get massaging in the powder.
As well as absorbing sweat, oil and odour, it controls sebum levels – meaning glands shouldn't secrete quite as much oil throughout the day (before you can get your hair under some flowing water).
Even better, the blend has conditioning ingredients in too, so you aren't playing a dry scalp.
Living Proof's own studies have shown people felt their hair looked and felt freshly shampooed.
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We tested this sceptically when time was important and it would have been ideal to cut washing and blow drying hair in the schedule.
After 30 to 60 seconds, not just did our hair look better, however it actually felt cleaner too.
No longer were we travelling with that itchy, uncomfortable feeling on our scalps, and our hair were built with a full Twenty four hours of wear before having to be washed.
Even on darker hair, the white powder came out with a quick massage.
We're impressed and think you'll be too.