What are My Hair Theory Extensions?


100% Remy Human Hair Clip in extensions, which are available in three convenient lengths, so you can Choose your colour, Choose your Length, and have ready to wear extensions as soon as you receive them.

How heavy are the extensions?


All MHT Hair extensions are perfect for adding volume and length, and were created to ensure they are comfortable and able to be worn all day long.
Choose the length which suits your hair, or the style you're wanting to achieve.

MHT extensions are available in the following lengths and weights:

10inch (25cm, 70grams)
14inch (35cm, 80grams)
18inch (45cm 100grams)

Still having trouble? send us an email hello@myhairtheory and we will help you.

Will I need to go to a hairdresser?


We have created three different lengths to minimise the need to have your extensions 'cut in'. However, If you would like to have your hair extensions professionally cut in, and coloured to perfectly match your hair, we recommend seeing a reputable hairdresser.

How do I know which colour I am?


Use our Home Colour Kit. Choose up to three colours, for $15, to try on in the comfort of your own home. When you find your perfect match, your $15 is then redeemable on your hair extension purchase.

Can I wear my hair up with Clip in extensions?


Yes, you can style MHT extensions anyway you like. Allow enough hair underneath the extensions to cover the strip of hair and to conceal the use of MHT when worn in an up-do.

Is the hair real?


MHT Extensions are 100% Remy Human Hair.

Where do I buy My Hair Theory Extensions?


You can purchase My Hair Theory Extensions here.

What is included in the My Hair Theory Extensions kit?


You will receive your MHT 100% Remy Human Hair Clip in Extensions which will include a dust bag, tail comb and instructions.

How do I care for my MHT Hair Extensions?


Wash and care for your MHT Hair extensions, as you would your own hair.
- Brush them. Gently, and never when wet.
- Wash them. With warm water, with shampoo and conditioner. Let them dry flat.
- Treat them. Like your own hair. Quality hair products and masks will go a long way. Try to keep heat styling to a minimum.

Can I dye the extensions?


Our 100% Remy Human Hair extensions can be dyed to match your hair colour. They can be dyed darker, but not lighter. Do not bleach MHT extensions.

Can I use heat to style my hair extensions?


Hair can be heat styled, but as with your own hair, to help with longevity, minimal heat styling is recommended.

How much is shipping within Australia?


Shipping is free for orders over $100 Australia wide.
International shipping is $14.99
For orders under $100, shipping is $7.95

Do you ship internationally?


We ship worldwide.

How long will it take for my extensions to arrive?


Australia - Expect your package to arrive within 7-10 business days.

International - Expect your package to arrive within 10-14 business days.



We do not offer refunds for change of mind purchases. We will gladly exchange for an alternate item or store credit within 10 days of delivery. The products must not be open or worn.

What if I order the wrong colour/wrong length?


In order to avoid receiving the wrong colour - We’ve created our Home Colour Kit to help you decide which colour would suit you best.
When your MHT Hair Extensions kit arrives, please check the colour against your hair, prior to opening and removing the hair from its plastic casing. If the colour is incorrect, please contact us at hello@myhairtheory.com.au to arrange an exchange. The product must not be open or worn.