Keratin treatments can sound like the dream fix to people with problem hair, but it turns out, they’re not all created equal. We spoke to an expert to get to the root of this beauty buzzword and help you know what to look for and what to leave.

Renee Vallender is the founder of The Straightening Salon, created from her own search for a fuss-free hair solution. As a first-time mum with little time to spare and a head of frizzy “Hagrid hair,” she discovered the power of permanent straightening – and never looked back. Thirteen years on, what started as a personal fix has grown into a business dedicated to helping other women feel confident, save time and enjoy smooth, easy-to-manage hair every day.

Keratin treatments have been a hot topic in haircare for over a decade. But like many beauty buzzwords, there are many generalisations (and misinformation) about what keratin is, what these “treatments” do, whether they really work and if they’re safe for your hair in the long run. 

Not all treatments labelled as “keratin” deliver the same results, and unfortunately, some popular options carry hidden risks. 

What is Keratin?

Keratin is a naturally occurring fibrous protein found in your hair, skin, and nails. It’s what gives your hair strength, elasticity and structure. Heat styling, colouring, or environmental stress damages your hair, depleting its keratin levels and making strands weaker, drier, and more prone to breakage.

Traditional “Keratin Treatments” 

Many traditional “keratin treatments” around the world still contain extremely volatile ingredients such as formaldehyde. Fortunately, Australian regulations require that salon-use products be formaldehyde-free. Any reputable salon sourcing from authorised distributors should be using formulas that meet these national safety standards. 

That said, formaldehyde-free doesn’t always mean gentle. Some treatments rely on highly alkaline, chemical-based formulations that can still compromise the hair’s internal structure. While they may deliver temporary smoothness or straightness, they can often leave the hair brittle, dry and overly processed over time. 

Adding to the complexity, salons use the term “keratin treatment” so broadly that results can vary dramatically. Chemical-based treatments can create a permanent change to the hair’s structure, delivering a straighter finish. Other keratin treatments smooth and soften the hair without altering its natural texture. 

As a result, one “keratin treatment” may leave hair nearly straight, while another may simply reduce frizz and boost manageability. We often hear clients say they’ve “had a keratin treatment before and it did nothing” for their hair, but in reality, there are so many variables at play. These include the formula used, the application process, the stylist’s technique and the starting condition of the hair, all of which influence the outcome. 

What we do differently

At The Straightening Salon, we take a completely non-toxic, tailored approach to hair smoothing and straightening. Our treatments are custom-blended to suit your hair type and desired results, using a combination of relaxing proteins, amino acids, tannins, plex systems and omega oils, all designed to work with your hair, not against it.

Some of our formulas include keratin protein to help replenish compromised strands, especially if your hair has been damaged by heat or colour. But keratin alone isn’t what smooths or straightens the hair. It’s the supporting ingredients, how they’re applied and the technique that truly makes the difference. 

Our treatments don’t just mask damage with artificial shine. They help rebuild the hair’s strength and health, leaving it shinier, healthier and easier to manage – all without the harsh chemicals found in many traditional smoothing formulas. 

Are keratin treatments right for everyone? 

If you want to save time and achieve healthy, manageable hair, then yes, a treatment is a great idea. We work with all hair types with a personalised approach.

Whether you’re looking for a semi-permanent smoothing solution to tame frizz or a permanent straightening treatment for a sleeker look, we’ll guide you toward the best option for your hair type, goals and lifestyle. 

Our clients often tell us how much time they save getting ready in the morning. They need less heat tools, fewer styling products, and their hair simply behaves better day to day, boosting confidence and reducing stress.

But beyond convenience, our focus is on building lasting hair health, and we know our treatments deliver exactly that. 

The bottom line 

Not all keratin treatments are created equal. And not every treatment that uses the word “keratin” is necessarily good for your hair. Results can vary dramatically depending on the formula, technique and stylist behind it. 

That’s why it’s worth doing your research and choosing a salon that prioritises both visible results and long-term hair health. 

At The Straightening Salon, our mission is to help women feel confident and save time with healthy, manageable hair, so naturally, we’ve built our entire philosophy around delivering smooth, frizz-free results without compromising hair health.

Have you ever had a keratin treatment? What was your experience like? Leave us a comment!