Smoothening vs Straightening: Which is Better?
The complete comparison for Indian hair understanding the difference, cost, results, and which treatment actually suits your hair type.
Walk into any salon in Gurugram and ask about “hair straightening,” and you’ll likely be offered both smoothening and straightening as options often used interchangeably. But here’s the truth: they’re completely different treatments with different processes, results, costs, and maintenance requirements.
If you’ve ever felt confused about which one to choose, you’re not alone. At Eikon Luxury Salon, this is the #1 question we answer during consultations. This guide breaks down everything you need to know to make the right choice for your hair.
The Quick Comparison
Smoothening
Semi-Permanent Treatment
- Reduces frizz by 60–80%
- Retains natural movement
- Lasts 3–6 months
- Less damaging
- Natural-looking results
- ₹3,500 – ₹8,000
VS
Straightening
Permanent Treatment
- 100% pin-straight hair
- No natural volume
- Lasts 6–12 months
- More chemical-intensive
- Dramatic transformation
- ₹5,000 – ₹12,000
What is Hair Smoothening?
Hair smoothening is a semi-permanent treatment designed to reduce frizz, add shine, and make hair more manageable while still retaining your hair’s natural texture and movement. Think of it as taming your hair rather than completely transforming it.
The Process
The smoothening process typically takes 2-3 hours and involves these steps:
- Hair washing: Your hair is thoroughly cleansed to remove all buildup and oil.
- Product application: A smoothening cream (often keratin-based or formaldehyde-free formula) is applied section by section throughout your hair.
- Processing time: The product is left on for 20-40 minutes depending on your hair type and the product used.
- Rinsing and blow-drying: Hair is rinsed, towel-dried, and blow-dried completely straight using a paddle brush.
- Heat sealing: A flat iron at controlled temperature seals the smoothening formula into each strand.
Eikon's Approach
At Eikon, we use formaldehyde-free smoothening treatments from trusted professional brands. We customize the processing time based on your hair's porosity, texture, and damage level — ensuring optimal results without unnecessary stress on your hair.
Results You Can Expect
Frizz Reduction
Reduces frizz by 60-80%. Hair becomes noticeably smoother and easier to manage, especially during humid monsoon months.
Natural Movement
Your hair retains its natural body and movement — just a sleeker, shinier, more polished version of your natural texture.
Duration
Lasts 3-6 months depending on hair care routine, product quality, and how fast your hair grows.
Best For
- Frizzy, unmanageable hair that takes forever to style
- Wavy or mildly curly hair (Type 2A-2C)
- First-time treatment seekers who want manageable results
- Anyone who wants natural-looking, low-maintenance hair
- Monsoon warriors battling humidity-induced frizz
What is Hair Straightening?
Hair straightening (also called rebonding in India) is a permanent chemical treatment that completely transforms curly or wavy hair into pin-straight, sleek hair. Unlike smoothening, straightening breaks and reforms the hair’s natural bonds to create a completely straight structure.
The Process
Straightening is significantly more involved and takes 4-6 hours:
- Hair washing and sectioning: Hair is washed and divided into very fine sections for precise application.
- Relaxer application: A chemical relaxer is applied to break down the hair’s natural protein bonds (disulfide bonds).
- Processing: The relaxer is left on for 30-60 minutes depending on hair type.
- Thorough rinsing: All chemical product is completely washed out.
- Neutralizer application: A neutralizing cream is applied to reform the bonds in a straight position.
- Blow-drying and flat ironing: Hair is meticulously blow-dried and flat-ironed at high heat to set the straight structure.
- Final treatment: A conditioning treatment is often applied to restore moisture.
Results You Can Expect
Pin-Straight Hair
100% straight hair — no wave, no curl, no texture. Completely smooth from root to tip with a glossy finish.
Permanent Change
The straightened hair remains straight permanently until it grows out. New growth will be your natural texture.
Longevity
Lasts 6-12 months on the lengths, but new growth appears curly/wavy requiring root touch-ups every 3-4 months.
Best For
- Very curly or extremely wavy hair (Type 3A-3C)
- Anyone who wants poker-straight hair and doesn’t mind the commitment
- People tired of daily heat styling to achieve straightness
- Those comfortable with regular root touch-ups
- Anyone who prefers minimal daily styling
Important Consideration
Straightening removes natural volume from your roots, creating a flat, sleek look. If you prefer volume and body in your hair, smoothening is a better choice.
Side-by-Side Detailed Comparison
| Feature | Smoothening | Straightening |
|---|---|---|
| Straightness Level | 60-80% straight, retains movement | 100% pin-straight, no texture |
| Duration | 3-6 months | 6-12 months (permanent on lengths) |
| Chemical Intensity | Moderate (keratin-based) | High (relaxer + neutralizer) |
| Damage Level | Low to moderate | Moderate to high |
| Maintenance | Low maintenance, minimal touch-ups | Root touch-ups every 3-4 months |
| Cost (Gurugram) | ₹3,500 - ₹8,000 | ₹5,000 - ₹12,000 |
| Processing Time | 2-3 hours | 4-6 hours |
| Natural Look | Yes, very natural | No, visibly straight |
| Root Volume | Retained | Flattened |
| Reversibility | Grows out gradually | Permanent on treated hair |
Keratin Treatment: The Third Option
If you’re researching hair treatments, you’ve probably also heard of “keratin treatment” — and yes, it’s different from both smoothening and straightening. Let’s clarify:
Why it’s popular: Keratin treatment sits between smoothening and straightening in terms of results — offering significant frizz control while repairing damage. It’s especially popular among people with color-treated or chemically damaged hair.
What Makes Keratin Treatment Different
Keratin treatment is a protein-infusion process that rebuilds damaged hair from within while also smoothing the cuticle. Brazilian Keratin Treatment (BKT) is the most popular variant. Unlike regular smoothening, keratin treatments focus heavily on repairing and strengthening damaged hair.Benefits Over Smoothening
- Repairs damaged, chemically treated hair
- Adds strength and elasticity
- Results improve with each treatment
- Works well on color-treated hair
- Can be customized for different smoothness levels
Drawbacks
- More expensive: ₹6,000 – ₹15,000
- Some formulas contain formaldehyde
- Requires specific aftercare products
- Not suitable for very oily scalps
Which Treatment for Which Hair Type?
For Wavy Hair (Type 2A-2C)
Recommendation: Smoothening If your hair is naturally wavy with mild to moderate frizz, smoothening is ideal. Straightening would be overkill and would completely remove your hair’s natural movement and body. Smoothening will calm the frizz, add shine, and make styling infinitely easier — while still letting you enjoy soft waves when you want them.For Curly Hair (Type 3A-3C)
Recommendation: Either can work — consultation essential The choice depends on what you want. If you love your curls but want them more manageable and less frizzy, smoothening (or keratin treatment) maintains your curl pattern while making it healthier and shinier. If you want completely straight hair and are ready for the maintenance commitment, straightening delivers dramatic results.
Expert Insight
For Frizzy Straight Hair
Recommendation: Smoothening or Keratin Treatment
If your hair is already straight but perpetually frizzy, dry, or fly-away, smoothening is perfect. You don’t need straightening — your hair is already straight. What you need is frizz control, shine, and manageability, which smoothening delivers beautifully. At Eikon, we’ve found that many clients with curly hair initially want straightening but change their minds after seeing smoothening results on similar hair types. We always recommend a thorough consultation first.
Get Expert Hair Treatment Advice at Eikon Sector 23
Still unsure which treatment is right for your hair? Book a free consultation with our expert stylists. We'll assess your hair type, discuss your goals, and recommend the best treatment — honestly, without overselling.
Free Consultation
Premium Products
15+ Years Experience
Honest Advice
The Bottom Line
Choosing between smoothening and straightening isn’t about which is “better” — it’s about which suits your hair type, lifestyle, and aesthetic goals. Smoothening offers natural-looking frizz control with minimal maintenance. Straightening delivers dramatic, poker-straight transformation with more upkeep.
At Eikon Luxury Salon in Sector 23, Gurugram, we’ve guided hundreds of clients through this exact decision. Our consultations are free, judgment-free, and focused on what’s genuinely best for your hair — not what’s most profitable for us.
Ready to transform your hair? Contact Eikon today and let’s find your perfect treatment.
