We fuse the power of Keratin Amino Acids with the Nano power of a Plex.

The Ultimate Keratin Plex Fusion is Terreamer’s luxury straightening treatment that combines two powerful systems in one — Keratin + Plex Nanoplasty. 

The idea is to repair from the inside (Plex / bond repair) and smooth/seal from the outside (Keratin-based smoothing). 

For ultimate straightening it combines the power of two straightening agents Carbocysteine and Glyoxylic Acid

It’s 100% formaldehyde-free and infused with collagen, silk protein, shea butter, amino acids, etc. 

The stated result: exceptionally straight, healthy-looking hair that’s also stronger and more resilient compared to using just one system

Two Treatments in One Session

Enjoy the benefits of both our hero straightening systems in a single appointment. Your hair is left ultra-smooth, shiny, and healthy with reduced blow-drying time and minimal daily styling effort.

Longer-Lasting Results

The Keratin Plex Fusion uses two different straightening ingredients that can make your hair lasts up to 8 months with the right aftercare — our longest-lasting straightening service.

Double Repair Service
Using both keratin amino acids which repair the outside of the cuticle and plex collagen which repairs the internal bonds of the hair gives your hair double repair in a single appointment.

No Downtime

Style your hair immediately — wear it up, down, or clipped with no waiting period.

Same-Day Colour

Colour services can be booked alongside your Fusion treatment for a complete transformation but we do recommend 48 hours or two washes for optimal colour absorption.

Keratin Amino Acids – Strengthen and rebuild the hair’s structure from within, boosting elasticity and shine while sealing the cuticle for a smooth, frizz-free finish.

Amino Acids – Work deep into the cortex to restore strength, repair bonds, and add healthy shine.

Natural Oils & Butters – Provide intense hydration, protect against heat, and keep hair soft, supple, and manageable.

Glyoxyloyl & Organic Acids – Gently restructure the hair’s natural bonds for lasting smoothness and resistance to humidity.

Your journey begins with an in-depth consultation to assess your hair’s health, history, and goals.

We start with the Plex Nanoplasty step to repair and fortify from within, followed by our Signature Keratin step to smooth, seal, and lock in moisture. Heat activation ensures both treatments bond deeply with the cuticle for maximum strength, sleekness, and shine.

The result? Stronger, healthier, and flawlessly smooth hair that stays beautiful for months.

Maintain Your Results Longer

With proper aftercare, your Fusion treatment can last up to 8 months. Includes our 30-day Happy Hair Guarantee.

Use Sulfate-Free Shampoo

Always choose Terre a Mer’s sulfate-free shampoo to protect your treatment and cuticle health.

Wash Sparingly

Limit to 2 washes per week to preserve smoothness.

Avoid Pools & Ocean for the First Week

Chlorine, salt, and minerals can weaken the treatment.

How long does it last?

6–8 months with proper aftercare — our longest-lasting smoothing service.
READ: It depend on your current hair condition, lifestyle and how you maintain it. Some of these can significantly shorten the duration.

Is it formaldehyde-free?

Yes — 100% formaldehyde-free and free from harsh chemicals.

Who is it for?

Perfect for those wanting both the sleek, frizz-free finish of keratin and the deep repair of plex nanoplasty in one session.

Is it safe for coloured or blonde hair?

Yes — temperature is adjusted for lightened hair to protect colour, and we can refresh colour during the same visit.