But don't panic - these no-nos are easy enough to remedy!
Mistake #1: washing your face = the same as removing your make-up
Wrong! Remove your make-up before you cleanse, in order to maximise the effectiveness of your cleanser. A quick swipe of a make-up remover wipe will remove the bulk of product, meaning when you cleanse your skin will benefit more. Makes sense, no?
Instead: use a gentle make-up remover before you cleanse, sweeping it over your skin and eyes in order to give your cleanser a clearer canvas to work with.
Mistake #2: use face-wash products morning and evening
It's up to you how often you want to cleanse and tone but experts across the board are in agreement that over-using products will damage your skin. Excessive use will strip your skin of the natural oils that keep it healthy.
Instead: stick to evenings for your full routine, and use a serum and moisturiser in the morning.
Mistake #3: scrubbing your skin will get rid of blemishes
No, no, no! If you've got a spot, resist rubbing it with a flannel. This runs the risk of bursting the zit (hello, potential scarring), as well as getting any associated bacteria onto your wash cloth - meaning you run the risk of wiping them all over your face. Not great.
Instead: leave spots well alone. This will maximise their chance of fully healing - as well as minimising your chance of spreading a breakout!
Mistake #4: using extremes of temperature in a bid to open and close your pores
The rumour goes that hot water will open your pores - allowing you to remove any dirt that's got trapped - whilst a splash of icy-cold water will close them again. Fine - but don't go crazy when controlling the temperatures. Extremes of hot and cold can cause more harm than good, with conditions such as rosacea and eczema.
Instead: focus on using good quality products and getting into a regular routine. This will benefit your skin far more than an old wives' tale!
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Mistake #5: being impatient when you don't see results
It's easy to get frustrated with a new purchase when it doesn't transform your skin straightaway. However, impatience doesn't work in this situation - much like anything in life, you need to give it a proper go before deciding it's not for you. (Unless, of course, it's bringing you out in an allergic reation. In that case, OFC chuck out!)
Instead: stick with the product for at least a fortnight before chucking it out.