Journal

Our expert guide to scalp science, hair health and ingredient education.

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Hair Types 101

Different hair types require different care, so knowing yours is integral to treating it right

by Katie Olsen

50 Results

Photo of the inside of an avocado cut into half frozen in ice melting on table surface
Is Mineral Oil Bad For Your Hair?

There are so many different types of oils used in scalp and hair products. Find out what mineral oils are, and why we don't use them.

Photo of a man and women with dark curly afro hair leaning their heads against each other
Hair Porosity 101

Porosity can seem a bit obscure or complicated at first, but we’re going to demystify it and explain why it matters.

Picture of Harklinikken Hair Conditioner globdule texture
The Benefits of Shea Butter on Hair

Known for its nourishing, softening and soothing properties, shea butter is a natural treasure. Find out how we use it. 

Women with short black hair smiling and looking away from camera whilst leaning back
Hair Types 101

Different hair types require different care, so knowing yours is integral to treating it right. 

Models with long blonde and brunette hair tied together whilst facing away from eachother
Does Exercise Cause Hair Loss?

What is the connection between hair loss and working out? Find out more about the truths and myths.

How To: Hair Masks
How To: Hair Masks

Learn how these deep conditioning treatments should work, what ingredients to avoid, and the best methods for application.

The Benefits of Avocado Oil for Scalp and Hair
The Benefits of Avocado Oil for Scalp and Hair

Rich in emollient properties, avocado oil can do wonders for your strands.

New Year Scalp and Hair Care Resolutions From Lars Skjøth
New Year Scalp and Hair Care Resolutions From Lars Skjøth

Hårklinikken founder Lars Skjøth has six simple DOs and DON’Ts for you to make 2024 the year you elevate your routine to achieve optimal scalp health.

Dandruff or Dry Scalp: How to Tell The Difference
Dandruff or Dry Scalp: How to Tell The Difference

Having an itchy and flaky scalp can be infuriating and embarrassing, but it’s also difficult to know if it’s dandruff or a case of dry scalp. Make sure you're not treating the wrong condition.

Are Parabens Bad For You?
Are Parabens Bad For You?

What parabens actually are, what they’re used for, and why we never use them. 

How To: Hot Styling Tools
How To: Hot Styling Tools

Tips and tricks for heat styling that reduce the potential for damage. 

The Benefits of Aloe Vera Leaf Extract For Hair and Scalp
The Benefits of Aloe Vera Leaf Extract For Hair and Scalp

When combined in with specific ingredients, aloe vera can work wonders for your scalp and strands.