Are you washing your hair wrong? An expert reveals her secret to achieving shiny hair – and almost everyone makes one key mistake

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A hair specialist has revealed the “right way” to use conditioner and how often you should wash your hair.

Dr Crystal Aguh, associate professor of dermatology and member of Olaplex’s scientific advisory board, shed light on the mistakes Australians tend to make in the shower and the two “must-have” products customers can’t get enough of.

While most only condition the ends of the hair, Dr. Aguh recommends applying the product from roots to tips.

“This allows the strands to stay hydrated and helps minimize damage caused by daily wear and tear,” she told FEMAIL.

The pro added that a quick 30-second lather is all that’s needed when shampooing your hair, and additional cleansing can actually do more harm than good.

The number of times you should wash your hair will also be determined by the ‘curl type’.

‘A quick lather of 15 to 30 seconds is all that is needed for proper washing and cleaning. Double shampooing can be helpful if there is a lot of product buildup,” Dr. Aguh said.

She recommends Olaplex No. 4 ($54) and No. 5 ($54), which have only skyrocketed in popularity since their original launch.

Dr Crystal Aguh has shed light on the mistakes Australians tend to make when it comes to washing their hair.

Dr Crystal Aguh has shed light on the mistakes Australians tend to make when it comes to washing their hair.

While most only condition the ends of the hair, Dr. Aguh recommends applying the product from roots to ends.

While most only condition the ends of the hair, Dr. Aguh recommends applying the product from the roots to the tips. “This allows the hair to stay hydrated and helps minimize damage caused by daily use,” he told FEMAIL.

How often should you wash your hair?

Dr. Aguh revealed that the frequency of washing varies and is greatly influenced by hair type.

For example, if you have straight, fine hair that gets greasy very easily, then your ideal washing frequency might be between one and two days.

But if you have thicker, wavy hair, the ideal washing frequency may be every two to three days.

For those with very curly hair, washing once a week is ideal, although once every two weeks can also work well. This gives curly hair a chance to be moisturized and conditioned regularly.

How long should you lather your hair when shampooing?

According to Dr. Aguh, you only need to lather your hair with shampoo for a maximum of 30 seconds.

“The chemistry of shampoo and conditioning is relatively simple,” she said.

‘When you apply shampoo to your hair, it leaves a negative charge while conditioner is positively charged. Exposing more negative charges by shampooing your hair twice can allow conditioners to work better, but only up to a point.

‘This is because excessive use of shampoo can also damage hair. It is important to achieve an ideal balance.’

She added that if the hair doesn’t feel dirty after two days, then shampooing followed by conditioner is “more than enough.”

Dr. Aguh revealed that washing frequency varies and is greatly influenced by hair type.

Dr. Aguh revealed that the frequency of washing varies and is greatly influenced by hair type.

She recommended Olaplex No.4 shampoo and No.5 conditioner, both of which have received thousands of glowing reviews online from satisfied customers.

She recommended Olaplex No.4 Shampoo and No.5 Conditioner, both of which have received thousands of glowing reviews online from satisfied customers.

Dr. Aguh recommends Olaplex to all of her patients because it “checks all the boxes” in terms of ingredients and results.

The range is designed to strengthen hair, combat dullness and lock in moisture as quickly as possible.

And thousands of excited customers continue to rave about the range, with the brand racking up numerous five-star reviews.

Dr. Crystal Aguh, associate professor of dermatology and member of Olaplex's scientific advisory board, has shared the mistakes we all make when it comes to washing our hair.

Dr. Crystal Aguh, Associate Professor of Dermatology and member of the Olaplex Scientific Advisory Board, has shared the mistakes we all make when it comes to washing our hair.

“The conditioner is AMAZING and leaves my hair soft and silky. My hair has grown SO MUCH since I’ve been using it,” one person wrote.

Another person wrote: “I love the conditioner! He makes my unruly hair easy to manage and detangle.”

‘My hair has never been so soft and healthy. I dye my hair a lot, so I need a shampoo and conditioner that will keep my hair looking silky and healthy. This does just that. I tell all my friends to get it. It’s definitely worth it.’

A third added: ‘My hairdresser introduced me to Olaplex. I have been using the bonding treatment and maintenance shampoo and conditioner for 18 months. My hair is much healthier! I love it!’

To find out more about the Olaplex range, click here.

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