You’ve just invested in a luxurious keratin treatment. Your hair looks sleek, feels smooth, and for once, has zero frizz. But how do you keep it that way?

Without proper care, the benefits of a keratin treatment can fade fast. Harsh shampoos, frequent washing, or heat overuse can strip the protein right out of your strands.

At Haste Hair in Boston, we’ve helped hundreds of clients maintain their keratin-treated hair with targeted aftercare strategies. Whether you’re navigating New England humidity or wondering when to wash, we’ve got answers.

In this guide, you’ll learn what to do (and avoid) after a keratin treatment, including product tips, deep conditioning hacks, and when to rebook.

With the proper care, your results can last up to 3 months or longer. Let’s make that smooth, shiny finish last.

What Is Keratin-Treated Hair?

Keratin-treated hair has undergone a smoothing process that infuses the hair shaft with keratin, a natural protein. The result? Reduced frizz, improved shine, and more manageable hair.

👉 Want a deeper dive? Read our complete guide on keratin treatments here.

1. How to Wash Keratin-Treated Hair (and When)

Timing your first wash is crucial. Most treatments require waiting 72 hours before shampooing to allow the keratin to bond fully.

Tips:

• Wait 3 days before your first post-treatment wash.
• Use sulfate-free shampoo and conditioner only.
• Sleep on a silk pillowcase to reduce friction.

Bonus: For added protection, try a nourishing deep conditioning treatment once a week to lock in moisture.

2. Products to Avoid After a Keratin Treatment

Some ingredients can undo your smooth results. Say no to:

• Sodium chloride (common in sea salt sprays)
• Alcohol-based styling products
• Clarifying shampoos (unless used weeks later to remove buildup)

Looking for heat styling options? Use a Kerastase heat protectant before blow-drying or flat-ironing.

3. How Often to Wash

Washing too often can shorten your treatment’s lifespan.

Tips:

• Aim for 2–3 times a week max.
• Use dry shampoo to refresh in between.
• Rinse with cool water to help seal the cuticle.

4. Blow-Drying, Curling & Styling Tips

While keratin-treated hair is already smooth, styling can still enhance your look if done right.

Tips:

• Always use a heat protectant from Kerastase.
• Blow-dry on medium heat instead of high.
• Use a wide-tooth comb to prevent snags.

5. Maintenance Treatments to Consider

To prolong your results, schedule a salon touch-up every 10–12 weeks.

Add-on options:

• Deep conditioning boosters
• Hair repair treatments customized for you
• Root touch-ups or glossing between visits

Ready for your next treatment? Book your follow-up today with one of our Boston stylists.

Caring for Keratin-Treated Hair in Boston’s Climate

Boston’s unpredictable weather, from icy winters to humid summers, can challenge your hair goals. We recommend using climate-responsive products and booking a touch-up before significant seasonal changes.

Looking for local advice? Visit Haste Hair in Medford, MA for a free consultation.

Final Tip: Don’t Forget Follow-Up Care

Your treatment doesn’t end at the salon door. The first few days are crucial, but long-term results come from weekly care and product choices.

🌟 For personalized advice, visit Haste Hair in Boston or book your next keratin treatment now. Let’s keep that shine going strong!

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