We’ve heard all sorts of theories and advice about how we should groom ourselves and the supposed results of each technique. But not everything they tell us is true – here are four of the biggest grooming myths out there.

‘I have oily skin and should stay away from moisturiser’

Having oily skin is not a reason to stop using moisturiser. Moisturisers work to hydrate the skin and don’t necessarily make it oilier. It is, however, important to use a moisturiser that has been specifically formulated for your skin type.

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‘Shaving against the grain gives me a cleaner shave’

You should always shave in the direction of your beard’s natural growth, not the other way around. If you shave against the grain, you’re likely to irritate your skin, getting razor bumps and burns and making your skin more prone to ingrown hairs.

“It’s important to know which direction your beard grows in and to shave in that direction. It does, however, become a bit tricky when shaving on the neck, because, unlike your facial hair, the hair on your neck grows in multiple directions. Always shave the neck area with a bit more precaution and concentration,” Adrienne Cohen, founder of South African cosmetic brand Fino, suggests.

‘I need to wash my face a few times a day because I have acne’

If you have acne, you shouldn’t wash your face more than two times a day – once in the morning and once in the evening – otherwise you risk aggravating the existing condition. If you wash your face too often, you end up over-washing your face, which strips it of its natural oils. This will cause the skin to produce more oil, which could could spell disaster.

READ MORE: How to take care of your hair – even after a cut

“Over-washing strips skin of the necessary oils and nutrients that it needs to fight off acne-causing bacteria. When we strip our skin of its natural oils, excess oil is produced in an effort to recover and repair itself,” Director of Brand Development and Aesthetician at InstaNatural, Heather Wilson told Bustle.

‘Shaving my beard makes it grow quicker and thicker’

Many of us have at some point in our lives heard that if you want your beard to grow thicker and quicker, you should shave it all off often. There hasn’t been any scientific proof to substantiate this – it’s just plain false. It’s true that your stubble might look a bit darker when it grows back, which might give off the illusion of a thicker beard, but it’s not the case.