Terre a Mer treatments have been successfully performed on thousands of clients — from afro-textured curls to fine, blonde hair. Our formulas are designed to work across a wide range of hair types.

If our treatment isn’t suitable for your hair, we’ll let you know during your consultation — honesty and hair health always come first.

We also offer our 30-Day Happy Hair Guarantee for added peace of mind. If you’re not satisfied with your results, we’re here to make it right.

👉 Click here to learn more about the Terre a Mer 30-Day Happy Hair Guarantee.

✅ Straightens all curl types

✅ Repairs even severely damaged hair

✅ Delivers intense, mirror-like shine

✅ Eliminates frizz completely

✅ Certified safe – 100% formaldehyde-free

✅ Results last 4 to 6 months

Wake up to perfect hair every morning — in under 5 minutes.

👉 See real before & after transformations here

There’s absolutely no downtime after your treatment — walk out with flawless hair and get straight back to your day. Whether you’re heading to work, the gym, the pool, or a night out, your hair is ready

Yes! Our unique combination of treatment and technique not only straightens your hair — it actively repairs damage, leaving it healthier and stronger.

The Terre a Mer Keratin Treatment uses a low pH amino acid formula that coats and seals each strand, creating a smooth, straight, and healthy finish.

Unlike chemical or permanent straightening, which alters the internal structure of the hair and can cause long-term damage, our treatment is non-permanent and gentle on your hair.

✨ Results last 4 to 6 months, with no harsh chemicals or structural damage.

👉 Learn more on our Keratin Hair Straightening page

Our treatment is designed to repair — not damage — your hair.

Through a carefully developed combination of advanced techniques and a keratin-rich formula, we restore even the most severely damaged hair.

Your hair is made primarily of keratin. Think of our treatment as applying “liquid hair” — a concentrated blend of keratin sulphur amino acids that penetrate the hair shaft, rebuild broken areas, fill porosity gaps, and seal the cuticle for smoother, fuller, and healthier hair.

The result? Stronger, shinier, and more resilient hair with every treatment.

At Terre a Mer, we specialise exclusively in keratin straightening, advanced hair repair, and deep hydration treatments — all designed to restore and protect your hair’s health.

Our team is expertly trained using our own proprietary products and techniques, ensuring consistently exceptional results. With thousands of treatments performed, our founder is one of Australia’s most experienced keratin specialists — so you’re truly in expert hands.

👉 Learn more about Terre a Mer here

Pricing depends on your hair’s length, thickness, condition, and overall volume — because every head of hair is unique.

Keratin Straightening / Plex Nanoplasty treatments
Starting from $500 for short hair

Express Smoothing / Hair BTX:
Starting at: $350 for short hair

Hydration Hair Spa Treatment
Starting from $250 for short hair

Book a free consultation with one of our specialists for a tailored quote.

With industry-leading formulations and expert application, you can trust you’re getting the best in semi-permanent hair smoothing/straightening and repair.

👉 Book your treatment here

Generally, you will get anywhere 4 to 6 months out of a single treatment. But it depends on previous damage, the thickness of hair and maintenance following the treatment. The best estimate is when you have your consultation with one of our experts.

Book a consultation now.

Our formulated treatment does NOT contain ANY formaldehyde in any form. It also doesn’t contain any other nasties. Our formula has been tested in 2 different Australia independent labs for your peace of mind.

The keratin treatment will only affect artificial colour due to its low pH natural formula. Any colour change can be corrected on the same day. Any lightening must be done strictly prior to the treatment as it can affect the keratin treatment.

The Terre a Mer keratin treatment contains no nasty for a typical child or adult, but no tests have been done on a pregnant woman, and we cannot provide a guarantee for its safety with unborn babies. We would recommend exercising caution asking your physician and choosing yourself as it is a personal one.

For starters, each brand has its unique formula, which drastically affects the outcome. Terre a Mer uses the latest science for a keratin treatment to help create healthy hair by repairing almost all hair damage types. Our formula also specialises in keratin straightening so that it can straighten coarse hair without harsh chemicals.

We also have our techniques that only our experts know to use. Everyone has different hair and want to achieve different results, and so we adjust the technique to reach your hair goals.

Terre a Mer uses its very own scientifically formulated professional keratin treatment.

The treatment is called ‘Intensive rejuvenation keratin treatment’ and was design to be the very best in the industry.

Intensive rejuvenation provides the highest level of hair repair, keratin hair straightening, frizz elimination and best shine on the hair industry.

We do not buy from any distributor but make our very own treatment so that we can guarantee the results for all our clients to get the results they expect.

The only treatment that comes with a happy hair guarantee :) 

We always recommend doing bleaching BEFORE the keratin treatment and colour/toning AFTER the keratin treatment.

Bleaching or any lifting strips the pigment from deep in the hair to remove the pigment/colour. High level peroxide is almost always use and that will change the hair so we always recommend bleaching before the keratin treatment.

A colour and toner should be done post/after the keratin treatment as that will sit on top of the keratin and can counter act and tone or colour changes.

It is essential to use the right shampoo and conditioner following one of our keratin treatments as you want to maintain your investment. We only recommend the Terre aftercare, which has been specifically formulated to maintain the treatment and balance it. They are sodium chloride, sodium hydroxide free and contains hydration and protein to balance your hair. Take the best aftercare from our online store. Free Shipping.

Using the shampoo, conditioner, and other aftercare from Terre a Mer is essential. We also highly recommend getting a Terre a Mer Prescriptives Hydration Treatment once every four weeks.

The hydration treatments help treat your scalp by adding additional hydration to your hair and managing scalp health.

Any bleaching causing your hair to go lighter such as foils must be done before Terre a Mers keratin treatment. This rule is fundamental to follow as not to cause damage to the treatment.

You can colour your hair (depositing colour) on the same day but we do recommend 24 to 48 hours for best results as your hair will absorb the colour more effectively.

You can use what ever you want but its not guaranteed that it won't affect your treatment. Why? Every other shampoo, conditioner or treatment has their own formulations which can reduce the life or damage your treatment. Use at your own risk.

We recommend Terre a Mers aftercare range which has been designed to make your hair healthy and ensure your treatment lasts.

Avoid products containing sodium chloride (salt) and sodium hydroxide. Before swimming in the ocean or pool, use our great lipid protector called Intensive Rescue Therapy to coat your hair before you get into the water to give it some protection.

Click here to purchase intensive rescue therapy.

We recommend get the treatment every four months or three times a year. For individuals on a budget doing every 6 months is also a viable option. This ensures you get your healthiest hair and helps build on the previous treatment which maximises your investment.

Join our VIP Members Program can help with extra value if you want peace of mind.

VIP Members program coming soon!

Besides healthier and or straighter hair, some clients with a sensitive scalp may find some temporary oiliness flake for the first week after the treatment. This can be temporary and normal. Your pH on your scalp is rebalancing, but you can help it by using one hydration mask on your scalp and hair.

If this happens to you and you want help managing it use our Terre a Mer Prescriptive hydration treatment which uses essential oils to rebalance your scalp issue of dandruff or excess oil.

Book your hydration treatment here

This can happen occasionally. Keratin is made from naturally extracting the amino acids from New Zealand sheep's wool, combined with high heat; the sulphur content can sometimes take a few washes to minimize and disappear. Do not worry, this is normal and will disappear.

5 Things to Know Before Your Terre a Mer Keratin Treatment

1. Healthier, Shinier, Frizz-Free Hair

Expect smoother, softer, shinier hair — and straighter too, if that’s your goal. Frizz is dramatically reduced from the very first wash.

2. It’s Not Permanent

Our keratin treatment naturally fades over time — typically lasting between 4 to 8 months, depending on your hair’s condition and care routine.

3. Aftercare Matters

This treatment is an investment. To maintain results, it’s essential to use the correct aftercare. Activities like swimming in the ocean or pool may require pre-protection products to prevent fading.

4. Bleaching Comes First

Planning to lighten your hair? Bleach before, not after, your keratin treatment. Bleaching afterward can strip out the keratin and shorten your results.

5. You’ll Feel Amazing

Confidence levels soar with Terre a Mer. Your hair will get compliments, and yes — you might catch yourself touching it all day. The results are that good.

5 Things to Know After Your Keratin Treatment

1. Use Terre a Mer Aftercare

To maintain and extend your results, it’s essential to use the Terre a Mer aftercare range. Our Deep Fortifying and Pure Hydration lines are specially formulated to preserve your treatment. For optimal results, we recommend our Complete Care Range to nourish, hydrate, and protect your hair daily.

2. Results Improve with Each Treatment

Keratin builds on itself. With each consecutive treatment, your hair becomes healthier, stronger, shinier, and softer — often restoring it to a condition better than before chemical or bleach damage.

3. Swimming? Use Terre a Mer Protect

Before swimming in the ocean or pool, apply Terre a Mer Protect — a professionally formulated leave-in treatment that shields hair from salt and chlorine damage and helps preserve your keratin treatment.
Purchase from our online store

4. Save Time Styling

Our keratin is heat-activated, which means your daily styling routine becomes faster and easier. A quick blow-dry or pass with a flat iron can have your hair looking perfect in minutes.

5. Hydrate with Our In-Salon Hair Spa Treatments

Regular Hydrating Hair Spa Treatments using our Plex Hydration technology help lock in moisture, support healthy hair growth, and maintain balance for long-term hair health and shine.

A common question that is asked when all our clients get their consultation. If you answer any of these, then the Terre a Mer Signature Keratin Treatment can be perfect for your hair.

1. Do you want to repair your hair damage? The Terre a Mer signature Keratin treatment is one of the only hair treatments that repairs hair damage using actual hair protein. Our belief is in replacing hair with a protein your hair is actually made of... keratin!

2. Do you want to straighten your hair? There are many ways to straighten your hair, and they each have a different impact on the damage they cause to achieve the result. The keratin treatment allows your hair to go straight for up to 6 months without damaging your hair. It improves health while straightening.

3. Is having lustrous (shiny) hair vital to you? Our treatment makes your hair shine brilliantly. It is achieved by coating your hair in a keratin coating which reflects shine.

4. Is having Frizz-Free hair needed? If you live in a humid environment and your hair absorbs moisture, you need a reliable solution. The keratin treatment achieves this by sealing keratin around your hair cuticle so humidity can no longer penetrate. This achieves a frizz-free hair lifestyle.

5. Do you want to spend only 5 minutes or less on your hair every morning? Our treatment makes your hair so easy to manage but still look fantastic. With only 5 minutes and a small amount of heat, you can be out the door in minutes.