10 Best Shampoos and Conditioners for Keratin Treated Hair in 2026
Our latest in-depth review for the best shampoo for Keratin Treated Hair, along with tips, ratings, advice and how-to’s. Must read before you...
Updated for 2026 — This article has been reviewed and updated with the latest recommendations. Spending $300-500 on a keratin treatment and then washing it out with the wrong shampoo is like waxing your car and then driving it through a sandstorm. Keratin treatments smooth hair by bonding protein to the hair shaft, and sulfates in regular shampoos strip that protein right off.
Updated for 2026 — This article has been reviewed and updated with the latest recommendations.
Spending $300-500 on a keratin treatment and then washing it out with the wrong shampoo is like waxing your car and then driving it through a sandstorm. Keratin treatments smooth hair by bonding protein to the hair shaft, and sulfates in regular shampoos strip that protein right off. The right shampoo extends your treatment from eight weeks to four months or longer.
Here are ten of the best shampoos and conditioners for keratin treated hair in 2026.
Top Picks at a Glance
| Product | Best For | Key Feature | Price |
|---|---|---|---|
| Moroccan Oil Moisture Repair Shampoo | Best Overall | Argan Oil + Keratin | $26 |
| OGX Coconut Milk Shampoo | Best Budget | Sulfate-Free Coconut | $8 |
| Pureology Hydrate Shampoo | Best for Color-Treated | Zero Sulfate | $36 |
| Living Proof No Frizz Shampoo | Best Anti-Frizz | OFPMA Technology | $30 |
| Keratin Complex Smoothing Shampoo | Best Treatment Match | Keratin Protein | $28 |
1.
Moroccan Oil Moisture Repair Shampoo
Moroccan Oil's Moisture Repair Shampoo is the one most salons recommend after a keratin treatment, and for good reason. The sulfate-free formula is gentle enough to preserve the keratin bond while the argan oil and reconstructive keratin in the formula actually add protein back to the hair with each wash.
The shampoo lathers modestly (sulfate-free formulas do not foam like traditional shampoos) and rinses clean without leaving residue.
The scent is the signature Moroccan Oil fragrance that most salon clients recognize. At $26 for 8.5 ounces, it is mid-range for a salon product. Pair it with the matching conditioner for best results.
2. OGX Coconut Milk Shampoo
Not everyone wants to spend $26 on shampoo, and OGX's Coconut Milk formula proves you do not have to. It is sulfate-free, moisturizing, and widely available at any drugstore for about $8.
The coconut milk, coconut oil, and egg white protein blend adds moisture and strength without weighing hair down.
It will not deposit additional keratin like the Moroccan Oil formula, but it will not strip what is already there either. For budget-conscious users, this is the best balance of price and keratin-safe performance available.
3. Pureology Hydrate Shampoo
Pureology has been the gold standard for sulfate-free color care for years, and their Hydrate Shampoo is equally effective for keratin-treated hair.
The zero-sulfate formula uses gentle cleansing agents derived from coconut and corn. Jojoba, green tea, and sage provide natural conditioning.
The concentrated formula means you use less per wash, which makes the $36 price more palatable. One bottle lasts about 70 washes for medium-length hair. If your hair is both color-treated and keratin-treated, this is the safest bet to protect both investments.
4.
Living Proof No Frizz Shampoo
Living Proof's patented OFPMA molecule creates a weightless shield around each hair strand that repels humidity. For keratin-treated hair, this means double protection against frizz: the keratin smooths from within while the OFPMA deflects moisture from without. The result lasts through humid days that would normally cause treated hair to start reverting.
The shampoo is sulfate-free with a lightweight feel that does not flatten fine hair.
At $30, it is positioned between drugstore and luxury. The anti-humidity technology is what sets it apart from other sulfate-free options.
5. Keratin Complex Smoothing Therapy Shampoo
Made by one of the leading keratin treatment brands, this shampoo is specifically designed to work with their treatment system. The formula deposits keratin protein with each wash, effectively topping up your treatment over time.
It also contains color-care technology to prevent fading.
At $28, it is formulated to extend the life of any keratin treatment, not just Keratin Complex brand treatments. If maximizing the longevity of your treatment is the priority, this is the most purpose-built option available.
6-10. More Keratin-Safe Options
6. Olaplex No. 4 Bond Maintenance Shampoo - $30
Repairs broken bonds in hair while cleansing gently. The patented bis-aminopropyl diglycol dimaleate works at a molecular level to strengthen hair. Great for keratin-treated hair that has also been bleached or heat-damaged.
7.
Shea Moisture Coconut & Hibiscus Shampoo - $12
A natural, sulfate-free option with coconut oil and silk protein. The nourishing formula works well for thick or curly hair that has been keratin-treated. Excellent value at the price.
8. Briogeo Don't Despair Repair Shampoo - $36
A biotin, B-vitamin, and rosehip oil formula that strengthens damaged hair.
The gentle cleansing agents preserve keratin bonds while addressing breakage and dryness.
9. It's a 10 Miracle Shampoo Plus Keratin - $22
A keratin-infused, sulfate-free shampoo that adds shine and manageability. The lightweight formula works for all hair types and does not weigh fine hair down.
10.
Matrix Biolage Smoothproof Shampoo - $20
Camellia flower extract smooths and controls frizz in a sulfate-free formula. A solid mid-range option that is widely available at salons and beauty supply stores.
How to Wash Keratin Treated Hair
Wait 72 hours after treatment. Do not wash, wet, or tie up your hair for three days after a keratin treatment.
This allows the bonds to fully set.
Wash less frequently. Two to three times per week is ideal. Overwashing, even with sulfate-free shampoo, gradually wears down the treatment.
Use lukewarm water. Hot water opens the cuticle and releases the keratin protein faster. Cool or lukewarm water preserves the treatment longer.
Final Thoughts
Moroccan Oil Moisture Repair at $26 is the best overall choice for most keratin-treated hair. OGX Coconut Milk at $8 works perfectly fine for budget-conscious buyers. The single most important thing is avoiding sulfates. Check the ingredient list for sodium lauryl sulfate and sodium laureth sulfate. If either appears, put the bottle back.
The methodology, in full.
Every Product Rankers roundup follows the same five-step process. We publish our testing plan before we begin and update it publicly when methods change.
