- Keratin is a protein found naturally in your hair.
- The treatment coats the hair shaft with a keratin solution and then sealed using high heat.
- Results are semi-permanent, lasting for several months with proper aftercare.
- Keratin treatments are great for most hair types, including damaged, curly, and wavy hair.
- Aftercare is crucial to prolong the effects, including using sulphate-free products and avoiding washing your hair for a few days.
- Choosing an experienced keratin hair treatment salon is essential for a safe and successful outcome.
Are you dreaming of smooth, frizz-free hair that looks effortlessly polished, even in high humidity? If so, you’ve likely heard about the wonders of keratin treatments.
A keratin hair treatment is a popular salon service in Singapore that smooths frizz and reduces blow-drying time by infusing hair with amino acids, but it is not a permanent straightening process. This treatment is known for being one of the safer treatments available because its main ingredient, keratin, is a natural protein that already exists in our hair. This is why it has become such a popular choice for those with unruly or frizzy hair, seeking a more manageable and sleek mane.
What is Keratin Hair Treatment?



Hair is primarily made of a protein called keratin, which forms the main structure of each strand. This fibrous protein creates a protective barrier against environmental damage, making it responsible for hair strength and elasticity. It also comprises long amino acid chains linked by disulphide bonds, which dictate whether the hair is curly, wavy, or straight.
Over time, factors such as exposure to sunlight, pollution, chemical treatments like hair colouring, and heat styling can weaken the keratin coating in the hair shaft, leading to frizz, brittleness, and breakage.
A keratin hair treatment works to restore this protein shield. By replenishing protein levels, the treatment smooths the hair’s surface and repairs damage, realigning the keratin structure to enhance hair strength and appearance. This reinforcement can significantly improve hair texture, manageability, and overall health, providing a smoother, shinier look.
How Does Keratin Treatment Work?
Keratin is mixed with other compounds to effectively bond with your hair’s natural protein structure.
Traditional treatments used formaldehyde or formaldehyde-releasing chemicals like methylene glycol to create the necessary cross-links in the hair fibres. These compounds help the keratin adhere and form a smooth, protective layer, making hair lie flat and appear glossy.
Today, many salons offer formaldehyde-free alternatives that use different compounds to achieve similar results without the associated health concerns. These modern formulas often include aldehyde derivatives and other conditioning agents to soften the hair and enhance its overall appearance. The process involves infusing the hair with a specialised keratin solution, which is typically a smaller, hydrolysed form of keratin that can penetrate the hair shaft more easily.
Here’s a step-by-step breakdown of the keratin treatment process:
- Expert Consultation & Custom Assessment: Your journey starts with our stylist conducting a comprehensive assessment of your hair’s texture and condition. This evaluation allows us to customise the treatment and guarantee the most effective results for your unique needs.
- Pre-Treatment Preparation: We begin with a clarifying shampoo to thoroughly cleanse your hair, eliminating all residue and oils. This essential step ensures optimal keratin absorption, setting the foundation for a smoother, frizz-free finish.
- Precise Keratin Application: The specialised keratin formula is carefully hand-applied to evenly coat each strand. This meticulous process deeply infuses your hair with nourishment, ensuring a uniform, beautifully managed result.
- Sealing, Drying, and Sleek Finish: The treatment is left to set for up to 30 minutes to deeply penetrate the strands. We then lightly rinse your hair, blow-dry the solution in, and straighten it with a flat iron to achieve the final, sleek finish that lasts.
- Essential Post-Treatment Care: To maximise longevity, we provide crucial at-home care advice, including avoiding washing or tying your hair and using recommended sulfate-free products. We also commit to ensuring your satisfaction and will work with you if you’re not completely happy with your results.
Which Hair Type is Suitable for Keratin Treatment?
A keratin treatment can work wonders for many hair types, including:
- Thick, unruly curls: Keratin helps to smooth the hair shaft, making curls more defined and less frizzy.
- Wavy hair prone to frizz: It’s an excellent solution for taming frizz and adding a sleek, polished look to wavy hair.
- Chemically damaged hair: If your hair is brittle and weak from past chemical services or colouring, keratin can help to replenish lost protein and restore strength.
- Fine hair that needs smoothing: While it might not be ideal for those seeking volume, fine hair can benefit from a keratin treatment to add shine and control flyaways.
Which Hair is Not Suitable for Keratin Treatment?
While a keratin treatment is beneficial for many, there are some cases where it’s best to avoid the service.
- Highly Damaged Hair: Hair that has been severely over-processed from excessive bleaching or chemical treatments may not be a good candidate. The hair might be too fragile to withstand the heat from the flat iron and other chemicals in the treatment, potentially leading to further breakage.
- Very Fine or Fragile Hair: If you’re looking for more volume, a keratin treatment might not be right for you, as it can sometimes result in a limp or flat appearance.
- Scalp Issues: If you have an irritated, inflamed, or compromised scalp, it’s best to avoid any chemical treatments, including keratin. To be safe, it’s always a good idea to consult a professional first if you have existing scalp conditions.
- Pregnant or Breastfeeding Clients: Although many modern formulas are formaldehyde-free, it’s a standard precaution to advise breastfeeding and pregnant women to consult a doctor before getting any chemical treatment.
Benefits of Our Keratin Hair Treatment
Choosing a professional keratin treatment salon like NK Hairworks comes with a wide range of benefits that go beyond just aesthetics.
- Frizz-Free, Smooth Hair: The most immediate and noticeable benefit is the dramatic reduction in frizz. The treatment seals the hair cuticle, creating a smooth surface that resists humidity.
- Enhanced Shine and Gloss: By smoothing the hair’s surface, the treatment helps to reflect light more effectively, giving your hair a beautiful, healthy shine.
- Stronger, Healthier Hair: Keratin treatments replenish lost protein, repairing damage from within and making your hair more resilient to breakage.
- Faster and Easier Styling: With the hair cuticle sealed, you’ll find that your hair becomes much easier to manage. Tangles are significantly reduced, and your styling tools will glide through your hair effortlessly.
- Long-Lasting Results: Unlike a simple blowout, a keratin treatment provides semi-permanent results. With proper care, your hair can remain frizz-free for weeks or even months.
How to Choose a Good Keratin Hair Treatment Salon
To find the right keratin treatment salon:
- Look for Specialisation and Experience: A good salon will have a team of hair stylists with extensive experience and certification in performing keratin treatments. Ask about their portfolio and training.
- Check the Salon’s Reputation: Do your research. Look for an establishment with a solid reputation and positive customer reviews. This indicates a track record of excellent service and customer satisfaction.
- Don’t Fall for Extremely Low Prices: While everyone loves a good deal, be cautious of salons offering exceptionally cheap keratin treatments. This could be a sign they are using lower-quality products or cutting corners, which can do more harm than good to your hair.
- Ask Plenty of Questions: A reputable stylist will be happy to answer all your questions about the treatment, products used, and aftercare to ensure you’re fully confident in your decision.
How Long Does a Keratin Treatment Last?
The results of your keratin treatment are typically enjoyed for anywhere from two to four months. Preserving this luxurious finish requires a partnership: you must commit to using our recommended post-treatment care, specifically shampoos and conditioners that are free of sulfates and parabens. While factors like frequent exposure to salt water or chlorine will naturally challenge the treatment’s durability, your hair will return to its natural texture over time. When this occurs, you’ll know it’s the perfect time to schedule a touch-up and renew your sleek look.
Keratin Treatment Aftercare Tips
With proper aftercare, the best keratin treatments can last a long time.
- Wait Before Washing: Avoid washing your hair for at least three days after your treatment. This allows the keratin to fully bond with your hair. When you bathe, use a shower cap to keep your hair completely dry. Washing it too soon can strip away the treatment and shorten its lifespan.
- Use Sulphate-Free Products: Once you’re ready to wash your hair, it’s crucial to use shampoos and conditioners that are sulphate- and sodium chloride-free. These ingredients can strip the keratin from your hair, so look for products specifically for keratin care to keep your hair nourished and the treatment intact.
- Minimise Heat Styling: Try to minimise the use of excessive heat from flat irons and curling wands. Too much heat can break down the keratin bonds, causing the treatment to wear off quickly.
- Avoid Saltwater and Chlorine: Salt and chlorine are notorious for stripping keratin from your hair. If you’re a swimmer, wear a swim cap and rinse your hair immediately after you’re out of the water to preserve your treatment.
- Use a Silk Pillowcase: Cotton pillowcases can cause friction, leading to frizz and breakage. A silk pillowcase, with its smooth surface, helps your hair glide effortlessly, preventing tangles and preserving your smooth results.
- Don’t Tie Your Hair Immediately: For the first few days, avoid tying your hair up with clips or elastic bands. The tension and indentations can stress the newly-formed keratin bonds and affect the smooth, straight results of the treatment.
- Use Keratin-Infused Products: To further maintain your results, consider using hair care products that are infused with keratin. These products will help to replenish the protein, extending the life of your treatment.
Book an Appointment with NK Hairworks

Choosing the right salon is the most important step in your journey to silky, more manageable hair. At NK Hairworks, we pride ourselves on being a trusted destination for keratin treatments for curly hair and all other hair types.
When you visit one of our 10 salons, our team of highly skilled stylists conducts a thorough hair assessment to ensure we recommend the perfect treatment for your specific hair type and needs. We use only premium products and proper application protocols to give you a safe, effective, and beautiful result.
Whether you’re considering a new hair colour, a perm, or a hair scalp treatment to keep your tresses healthy from the roots up, our team is here to help you look and feel your best.


