Keratin Treatment Vs Rebonding: Key Differences Explained

Keratin hair treatment and rebonding are both popular hair services for those seeking smooth, straight, and manageable hair. While they may seem similar on the surface (both promise sleeker strands and a break from frizz), their methods and long-term results are actually quite different. So, how do you choose between the two?

Whether you’re considering your first treatment or simply looking to switch things up, it’s worth understanding what sets keratin treatments and rebonding apart. Why do some people swear by one while others avoid it? Let’s break it all down so you can find the best fit for your hair type, lifestyle, and personal style goals.

1. Purpose and effect

The goal of both treatments is to smooth and straighten your hair, but the final effect differs in terms of finish and flexibility.

• Keratin treatment

Keratin hair treatment works by infusing your hair with keratin, a protein naturally found in your hair, nails, and skin. It doesn’t break the natural bonds in your hair but coats it to smooth out frizz and reduce curl. The result? Hair that looks straighter, shinier, and more manageable, but still retains some of its natural wave or volume. It’s ideal for those who want to tame unruly hair without losing all of its bounce.

• Rebonding

On the other hand, rebonding is a more permanent straightening solution. It chemically breaks your hair’s natural bonds and reshapes them into a pin-straight structure before sealing it in place. The finish is ultra-sleek, ultra-straight, and often a bit flat. It’s perfect for people who want a dramatic transformation from curly or wavy hair to a permanently straight look.

2. Chemicals used

What goes into your hair during these treatments matters, especially if you’re mindful about your hair health or sensitive to strong chemical formulas.

• Keratin treatment

Keratin treatments typically use formaldehyde or formaldehyde-releasing solutions (though many salons now offer formaldehyde-free options). These chemicals help seal the keratin onto your hair shaft using heat from a flat iron. The procedure isn’t as harsh as rebonding and tends to be gentler on your locks. That’s one reason why keratin treatments have become a go-to at many keratin hair treatment salons in Singapore.

• Rebonding

Rebonding involves stronger chemicals like ammonium thioglycolate or sodium hydroxide. These work by altering the internal structure of your hair, permanently changing its shape. Because the hair bonds are literally broken and reshaped, the process is more intense and has a higher risk of damaging your hair if not done properly.

3. Duration

When it comes to how long the effects last, your lifestyle and how often you’re willing to return to the salon play a huge role.

• Keratin treatment

The results typically last around three to five months, depending on your hair type and how well you care for it post-treatment. Over time, the keratin wears off, and your natural hair texture returns. That makes it a great choice for those who want temporary smoothness without a long-term commitment.

• Rebonding

Being a more permanent treatment, rebonding can last up to six to 12 months. However, new hair growth at the roots will have your natural texture, which means regular touch-ups are needed to maintain that uniform straight look, usually every three to six months, depending on how fast your hair grows.

4. Hair health

The long-term impact on your hair’s health is something to seriously consider before committing to either treatment.

• Keratin treatment

This is often seen as the healthier option of the two. Since it doesn’t drastically change your hair’s internal structure, there’s less risk of dryness or breakage. In fact, many people find their hair feels softer and shinier post-treatment. That said, excessive heat application during the process and the use of formaldehyde-based products can still cause some damage if done too frequently.

• Rebonding

While delivering dramatic results, rebonding can take a toll on your hair. The chemical restructuring weakens the hair shaft, making it more prone to dryness, split ends, and breakage over time. It’s important to follow a strict aftercare routine and avoid additional chemical treatments like colouring or bleaching soon after.

5. Maintenance 

Your post-treatment routine can make or break the results, and this is where the differences really show.

• Keratin treatment

Keratin-treated hair is relatively low-maintenance. You can enjoy air-dried hair that’s still frizz-free and manageable. Just make sure to use sulphate-free shampoos, avoid washing your hair too often, and limit exposure to saltwater or chlorinated pools. Regular deep conditioning helps maintain the sleekness for longer.

• Rebonding

Rebonded hair demands more attention. You’ll need to be extra cautious with your hair – no tying it up too soon, avoiding heat styling unless necessary, and using specific haircare products to retain moisture and prevent breakage. Rebonded hair tends to be more fragile, so a consistent routine of hair masks and oils becomes essential.

Whether you’re comparing perm and rebonding, trying to smooth frizz, or dreaming of pin-straight hair, it’s all about understanding your hair’s needs and your lifestyle. Some love the subtle smoothing effects of keratin treatments, while others prefer the low-maintenance routine that comes with permanently straight hair, once the initial upkeep is out of the way.

Conclusion

Choosing between keratin treatment and rebonding boils down to how dramatic you want the change to be, how much maintenance you're ready to commit to, and how your hair holds up to chemical treatments. If you’re still unsure which route to go, a consultation with a stylist can help assess your hair type and recommend what suits you best.

Ready for smoother, sleeker locks? Visit No.8 Hair Studio for professional hair services tailored to your style and hair goals. Whether you’re leaning towards keratin or rebonding, our team is here to guide you through every step of your hair transformation journey.