# Keratin Myths vs Facts: 9 Questions Our Customers Ask Most

**By 365 SUN Editorial** · 2026-11-02

Every week our inbox fills with the same honest questions from moms, busy professionals and first-time users. Here are the **keratin myths and facts** you asked about most.

## 1\. Does keratin damage hair?

**Myth.** A quality formula applied at the right iron temperature seals the cuticle and reduces breakage. Damage usually comes from overheating or too many passes.

## 2\. Is all keratin full of formaldehyde?

**Myth.** Formulas like [Amazonliss Tanino](https://bondoxhair.com/products/amazonliss-tanino-2-03-fl-oz) use tannins instead of formaldehyde-releasing ingredients.

## 3\. Will my hair be completely flat?

**Depends.** Keratin smooths frizz; it doesn't have to remove volume. Fewer passes keep natural movement.

## 4\. Can I do it at home?

**Fact.** The [Amazonliss Keratin Set](https://bondoxhair.com/products/amazonliss-keratin-treatment-set-hair-straightening-2-03-fl-oz-60-ml) was designed for at-home use with clear steps.

## 5\. Can I color my hair afterward?

**Fact.** Wait about two weeks, or color before the treatment.

## 6\. Do I need special shampoo?

**Fact.** Sulfate-free care such as the [Amazonliss Anti-Frizz Shampoo & Conditioner](https://bondoxhair.com/products/amazonliss-anti-frizz-shampoo-and-conditioner-set-8-45-fl-oz) extends results.

## 7\. How long does it last?

Typically 2–4 months, depending on washing frequency and aftercare.

## 8\. Is it safe for blonde or bleached hair?

Yes, with a lower iron temperature. Follow with a nourishing mask like [Blonde Bondox Expert](https://bondoxhair.com/products/blonde-bondox-expert-8-8-oz-250-grams).

## 9\. Can I skip the mask between treatments?

**Myth.** A weekly [Brazilian Bondox mask](https://bondoxhair.com/products/brazilian-bondox-expert-hair-mask-8-8-oz-250-g) keeps the fiber hydrated, so your next treatment works better.

Still have a question? Send it our way. Your question might be in our next Mirror Talk post. VIP subscribers get early access to our holiday offers this month.

**Tags:** Amazonliss, at-home keratin, hair straightening FAQ, keratin myths, keratin treatment

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> Source: [Nutree Cosmetics ](https://bondoxhair.com/blogs/news/keratin-myths-vs-facts-9-questions-our-customers-ask-most)