10 Best Keratin Shampoos in Singapore You Should Use (2025 Guide)

The best keratin shampoos help tame frizz, strengthen strands, and smoothen your hair without salon visits.

Which is why frizz isn’t just a bad hair day, it’s a weekly reality in Singapore. Between frequent showers, constant sweating, air-conditioned commutes, and UV exposure, your hair goes through a lot. 

That’s where keratin shampoo earns its keep, this beloved hair care product helps repair damaged cuticles and restore softness even in the toughest weather.

So if you’re looking for the 10 best keratin shampoos available in Singapore, you’ve clicked to the right place. From drugstore staples to salon-grade formulas, we will go over pricing, results, and who they’re best for.

Keratin Shampoo Comparison Table 

Disclaimer: Prices are approximate as of 2025 and may vary across online and retail outlets in Singapore.

1. OGX Brazilian Keratin Smooth

Affordable keratin care with added oils for daily frizz control.

This everyday shampoo blends keratin, coconut oil, avocado oil, and cocoa butter to nourish while taming frizz. Popular with those managing thick, high-volume hair in Singapore’s heat.

• Ideal For: Frizzy, thick, or dry hair

• Texture: Creamy

• Features: Sulphate-free, oil-infused

• Why We Like It: Budget-friendly but effective

• Result: Reduced puffiness and visible smoothness

• Price: $16–$20

2. TRESemmé Keratin Smooth

Budget-friendly option for mild frizz and softness.

This low-sulphate shampoo is infused with marula oil and provides five benefits in one wash: shine, softness, anti-frizz, detangling, and manageability. Great for daily routines.

• Ideal For: Mild frizz, everyday use

• Texture: Light cream

• Features: Multi-benefit formula

• Why We Like It: Perfect for budget-conscious shoppers

• Result: Softer, shinier strands with better control

• Price: $14–$18

3. Shiseido Fuente Forte Shampoo

Salon-quality scalp and keratin strengthening in one.

Formulated with Japanese botanicals, this shampoo soothes the scalp while reinforcing weak roots with light keratin support. Suitable for humid weather and limp strands.

• Ideal For: Fine, limp, or weak hair

• Texture: Clear gel

• Features: Scalp-safe, botanical-based

• Why We Like It: Combines scalp and hair care

• Result: Stronger roots, less fallout

• Price: $36–$42

“Humidity is the number one cause of frizz in Singapore. A good keratin shampoo doesn’t fight it, it manages it from the root.” Senior Hairstylist from REDS KSL Hair salon

4. Goldwell Kerasilk Reconstruct

Premium choice for processed, damaged hair.

Blending silk protein and keratin, this luxurious shampoo restores elasticity and shine within 1–2 weeks. Designed for chemically treated, dry or rebonded hair.

• Ideal For: Rebonded, bleached, overprocessed hair

• Texture: Thick cream

• Features: Salon-grade repair, rich formula

• Why We Like It: Results are noticeable fast

• Result: Stronger, silkier hair with bounce

• Price: $42–$58

5. Olaplex No.4 Bond Maintenance

Strengthens from within using patented technology.

Olaplex’s bond-building formula targets internal hair damage. It’s not a pure keratin shampoo, but works wonders post-colouring and alongside keratin treatments.

• Ideal For: Bleached, brittle, colour-treated hair

• Texture: Dense cream

• Features: Patented bond-builder

• Why We Like It: Scientifically proven performance

• Result: Less breakage, healthier feel

• Price: $48

6. L’Oreal Paris Keratin Smooth

Drugstore staple with instant smoothing effect.

Infused with keratin and argan oil, this shampoo adds gloss and tames flyaways. A wallet-friendly option that still delivers shine and manageability.

• Ideal For: Coarse or unruly hair

• Texture: Cream-gel

• Features: Affordable, quick frizz fix

• Why We Like It: Reliable for humid climates

• Result: Sleek, shiny finish

• Price: $12–$15

7. Alfaparf Milano Keratin Therapy

Maintains and extends keratin treatment results.

A sulphate-free formula that supports professional keratin smoothing effects at home. It gently cleanses without stripping hair.

• Ideal For: Post-keratin treatment care

• Texture: Light lotion

• Features: Sulphate-free, colour safe

• Why We Like It: Prolongs salon effects

• Result: Smoothness that lasts

• Price: $36–$46

8. Davines Love Smoothing Shampoo

Eco-luxury shampoo for frizz-prone texture.

Formulated with Sicilian olive extract, this shampoo softens and tames curls while respecting the scalp’s balance. Lightweight and non-stripping.

• Ideal For: Textured, curly, or coarse hair

• Texture: Lightweight gel

• Features: Natural surfactants, vegan

• Why We Like It: Ethical yet effective

• Result: Tamed volume with softness

• Price: $42–$55

9. Hask Keratin Protein Shampoo

A simple yet reliable keratin boost for budget users.

Free from sulphates and parabens, Hask’s option helps reinforce damaged strands while gently cleansing. A go-to for students and frequent washers.

• Ideal For: Oily-prone or sensitised hair

• Texture: Medium lather

• Features: Clean formula, good scent

• Why We Like It: Great value per wash

• Result: Stronger texture over time

• Price: $12–$16

10. Virtue Recovery Shampoo

High-tech solution for stressed, ageing, or brittle hair.

Using Alpha Keratin 60ku, this premium formula repairs broken strands and thickens at the cuticle. Ideal for users with severe damage.

• Ideal For: Age-related thinning or heat-damaged hair

• Texture: Creamy-gel

• Features: Patented protein tech

• Why We Like It: Long-term rebuilding results

• Result: Fuller, more resilient strands

• Price: $60–$68

How to Choose the Right Keratin Shampoo for Your Hair Type

Not all keratin shampoos are built the same, and neither is your hair. Here’s a quick guide to help you narrow it down:

For Frizzy or Coarse Hair

Look for formulas with smoothing oils (like argan or coconut) and higher keratin concentration. Try: OGX, Goldwell, or L’Oreal Paris Keratin Smooth.

For Bleached or Chemically Damaged Hair

Your hair needs internal bond repair and strengthening proteins. Look for Olaplex, Goldwell, or Virtue.

For Oily or Fine Hair

Avoid heavy, oil-rich formulas that weigh hair down. Choose TRESemmé, Hask, or Shiseido Fuente Forte.

For Curly or Textured Hair

Go for lightweight yet smoothing options like Davines Love Smoothing Shampoo or OGX.

For Post-Keratin Treatment Maintenance

Stick with sulphate-free and gentle cleansers like Alfaparf Milano Keratin Therapy or Keratherapy Moisture Shampoo (if mentioned).

Read more: Best Hair Care Routine in Singapore (2025): Easy & Effective

How to Use Keratin Shampoo Properly (And Avoid Overuse)

Keratin shampoos work best when used correctly, not daily contrary to popular belief. Just like supplements, overuse can do more harm than good, especially in humid climates like Singapore.

How Often Should You Use Keratin Shampoo?

• Use it every 2–3 days for best results

• Avoid daily use if the formula is rich in protein, it may leave your hair stiff or brittle

“Don’t expect miracles in one wash. Keratin works best when used consistently over 2–4 weeks.” Melina Tan, Trichologist 

Signs You're Using Too Much

• Hair feels crunchy, stiff, or loses bounce

• Scalp feels tight, flaky, or over-cleansed

• Hair looks dull despite regular washing

What Not to Mix with Keratin Shampoo

Some combos can reduce its benefits or even damage your hair:

• Clarifying shampoo (they strip out keratin)

• Protein-rich masks used on the same day

• Heat styling tools without heat protectant

Conclusion: Is Keratin Shampoo Worth Adding to Your Hair Routine?

We definitely think so, especially if your hair’s fighting daily frizz, breakage, or just refusing to behave. Keratin shampoos aren’t miracle potions and they shouldn’t be mistaken for keratin treatment, but they do strengthen, smooth, and restore your strands over time.

At Top Secret, we’ve handpicked a keratin shampoo range that actually works, whether you're after an affordable fix or a salon-grade solution. No fluff, no fads, just formulas that suit our local climate, hair textures, and daily routines.

Not sure which to try first? Check the comparison table above, or drop by our site! Your hair will thank you later.

Frequently Asked Questions about Keratin Shampoo

What Does Keratin Shampoo Actually Do?

It reinforces hair with proteins that help smooth, strengthen, and reduce frizz.

Can I Use Keratin Shampoo Every Day?

It’s best to use it every 2-3 days for the best results.

Is Keratin Shampoo Good For Coloured Hair?

Yes. Look for sulphate-free options like Olaplex or Alfaparf to protect colour.

Will It Make My Hair Straight?

No, it smooths texture but doesn’t permanently straighten. It enhances shine and manageability.

Does Keratin Shampoo Replace Salon Keratin Treatment?

No, but it can prolong results and improve at-home maintenance.

Which Keratin Shampoo Is Best For Humid Climates?

Goldwell, TRESemmé, and L’Oreal’s anti-frizz formulas work well in humid weather.