The Image Shows a Person Applying a Sulfate-Free Shampoo to Their Hand While in The Shower

10 Best Sulfate Free Shampoo For Keratin Treated Hair

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Here’s a little secret: one of the simplest ways to combat frizz and flyaways is by switching to a keratin shampoo.

When I first introduced one into my hair care routine, the transformation was incredible—softer, smoother strands that felt stronger and healthier with every wash.

While they’re not as intensive as keratin treatments at the salon, these shampoos still pack a punch.

According to hairstylist Danielle Keasling, they can “strengthen strands, reduce frizz, and add shine,” making them a fantastic addition to your routine. Plus, they’re much gentler since they don’t contain harsh chemicals like formaldehyde, which is common in many salon treatments.

So, what makes keratin shampoos so effective? They work by replenishing your hair’s natural keratin proteins and repairing damage along the hair shaft caused by heat styling or chemical treatments. The result? Smoother, stronger hair with less frizz and a noticeable boost in overall health.

But with so many options on the market, finding the right one can be tricky.

That’s why I’ve personally tested and researched some of the best keratin shampoos, gathering insights from hair experts along the way. Let’s explore the top picks that’ll help you achieve your smoothest, shiniest hair yet!

1. Keratin Complex Keratin Care Smoothing Shampoo

The Image Shows a Bottle of Keratin Complex Color Care Smoothing Shampoo
Source: Youtube/Screenshot, Many users find it invaluable for keeping their keratin treatments intact for longer

This shampoo is a powerhouse for anyone maintaining a keratin treatment or aiming for smoother hair at home.

Packed with hydrolyzed keratin, wheat, and soy proteins, it works wonders to strengthen and condition while eliminating frizz.

The gentle formula doesn’t strip your hair of its natural oils, leaving it soft and shiny.

With a 13.5 oz bottle priced between $19–$28, it’s an excellent investment for keratin-treated hair.

Why It’s Loved

  • Makes hair feel stronger and healthier.
  • Reduces breakage over time.
  • Trusted by stylists for post-keratin care.

2. OGX Ever Straightening + Brazilian Keratin Therapy Shampoo

If you’re after a sulfate-free shampoo that smells amazing and delivers results, this is a winner.

The blend of keratin proteins, coconut oil, and avocado oil ensures your hair stays hydrated and smooth without losing its natural shine.

This shampoo is a budget-friendly option at around $10 for a 13 oz bottle.

The tropical scent adds a touch of luxury to your routine, while the formula gently cleanses and nourishes.

Some users note that frequent use might feel a little drying, so pairing it with a good conditioner is key.

Why It’s Loved

  • Affordable and effective for daily use.
  • Helps detangle and manage unruly hair.
  • Protects against environmental damage.

3. Monday Repair + Keratin Shampoo


Budget-conscious buyers, rejoice! This shampoo offers premium results at an affordable price, usually between $7–$10.

With coconut oil and shea butter as its main ingredients, it repairs damaged hair while leaving it soft and manageable.

Despite its nourishing formula, it doesn’t weigh hair down, making it a great option for all hair types.

Users often rave about its effectiveness in softening thick, coarse hair, making it feel lighter and shinier after just a few uses.

Why It’s Loved

  • Doesn’t leave hair greasy or weighed down.
  • Smells fresh and clean.
  • Ideal for coarse and thick hair.

4. Nexxus Keraphix Damage Healing Shampoo

@peachyymina_ #gifted_by_NexxusHaircare hair wash routine for damaged hair 🧖🏽‍♀️🫧 @Nexxus Hair Care #nexxuslevel #nexxushair #hairwashday #asmr #haircare #skincare #cute #pinkpilatesprincess #cleangirl #pinkaesthetic ♬ Show Me How – Men I Trust


Designed for severely damaged hair, this shampoo is a blend of keratin proteins and black rice extract.

It penetrates deep into the hair shaft, repairing damage and restoring strength from within.

Though it’s not sulfate-free, the formula is loved for its visible results on over-processed or bleached hair.

A large 33.8 oz bottle comes with a convenient pump and is priced at around $22. Customers with damaged hair report smoother, more manageable locks after consistent use.

Why It’s Loved

  • Comes in a jumbo size with a convenient pump.
  • Helps restore elasticity and prevent breakage.
  • Affordable compared to salon-grade alternatives.

5. Virtue Recovery Shampoo


The Virtue Recovery Shampoo is an all-star when it comes to over-processed and damaged hair.

Using Alpha Keratin 60ku, it rebuilds broken keratin strands, leaving hair noticeably fuller and healthier.

This shampoo also includes baobab oil and hydrolyzed quinoa for extra hydration and shine.

Priced at $78 for an 8 oz bottle, it’s a splurge, but many users claim it’s worth every penny for the dramatic transformation it delivers.

Why It’s Loved

  • Clinically proven to improve hair health.
  • Adds body and volume to lifeless hair.
  • Gentle enough for regular use despite its powerful effects.

6. Hair La Vie Shampoo

 

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Hair La Vie Shampoo is a lifesaver for thinning hair. Packed with saw palmetto extract, marula oil, and hydrolyzed keratin, it helps reduce hair loss while promoting scalp health.

This sulfate-free formula is gentle yet effective, with peppermint oil adding a refreshing tingle to your scalp.

At $25 for a 9 oz bottle, users appreciate its ability to stop hair fall and leave hair looking full and shiny.

Why It’s Loved

  • Reduces shedding and promotes hair growth.
  • Gentle enough for sensitive scalps.
  • Strengthens hair from the roots to the tips.

7. Drybar Liquid Glass Smoothing Shampoo

Two Bottles of Drybar Liquid Glass Smoothing Shampoo and Conditioner Placed Together on A Bathroom Shelf
Source: Youtube/Screenshot, Customers like its shine and frizz control, but it’s hard to dispense

For lightweight smoothing, this shampoo is an excellent choice.

Using a vegan keratin alternative along with neroli oil and murumuru butter, it provides salon-like results without weighing down your hair.

Priced at $29 for an 8.5 oz bottle, this sulfate-free shampoo is perfect for those with fine or color-treated hair.

Customers love its ability to tame frizz and add shine, though the thick texture can make dispensing tricky.

Why It’s Loved

  • Adds a mirror-like shine to dull hair.
  • Safe for color-treated hair.
  • Doesn’t leave a greasy residue.

8. Moroccanoil Moisture Repair Shampoo


Known for its signature fragrance, Moroccanoil Moisture Repair Shampoo combines argan oil, keratin proteins, and fatty acids to repair damaged hair.

It deeply hydrates and nourishes, making it a great choice for dry, color-treated hair.

Though on the pricier side at $14 for an 8.5 oz bottle, its results and luxurious scent make it a popular choice.

Many users note significant improvements in their hair’s texture and shine within weeks of use.

Why It’s Loved

  • Delivers long-lasting hydration.
  • Makes hair visibly shinier and healthier.
  • The fragrance alone is worth the price for many users.

9. It’s a 10 Miracle Shampoo Plus Keratin


This shampoo lives up to its name by delivering ten benefits in one.

Perfect for color-treated or heat-damaged hair, it combines hydrolyzed keratin and wheat protein to restore moisture, shine, and strength.

At $24 for a 10 oz bottle, it’s a mid-range option that delivers salon-quality results.

Many fans appreciate its ability to shield hair from further damage while enhancing its overall health and appearance.

Why It’s Loved

  • Protects against future damage.
  • Adds a silky finish to hair.
  • Pairs well with deep conditioners for extra hydration.

10. Ouai Fine Hair Shampoo

@soy.reyna And THANK YOU @the OUAI! The fine hair shampoo is the only shampoo I will be using. @GLAMZILLA #ouai #finehair #shampoo #thinhairtips #hairshampoo #hairtok ♬ original sound – Reyna


Those with fine hair will love Ouai Fine Hair Shampoo.

Lightweight yet nourishing, it includes biotin to strengthen strands and chia seed oil to lock in moisture.

Priced at $32 for a 10 oz bottle, it’s designed to boost volume and shine without leaving hair feeling heavy.

Its Mercer Street fragrance is a bonus, offering a fresh, luxurious scent that lasts all day.

Why It’s Loved

  • Boosts volume without weighing hair down.
  • Strengthens and repairs fragile hair.
  • Leaves hair smelling incredible with the Mercer Street fragrance.

If you’re wondering about the effectiveness of different hair care products, you might want to check out Is Hawthorne Shampoo Good for a detailed review.

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