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FAQ - NB BEAUTY PARIS Keratin Products
What is keratin and why is it beneficial for my hair?

Keratin is a protein naturally present in your hair. Our hydrolyzed keratin products penetrate the hair fiber to repair damaged areas, strengthen hair, and smooth the cuticle. This leaves your hair stronger, smoother, and shinier.
Are NB BEAUTY PARIS products suitable for all hair types?

Yes, our keratin products are formulated for all hair types, but they are particularly effective for hair that is curly, frizzy, unruly, color-treated, highlighted, or damaged by chemical treatments or heat.
Do your products contain formaldehyde or other harmful chemicals?

No, our keratin product line is formulated without formaldehyde, sulfate, paraben, or silicone. We favor natural ingredients such as prickly pear, black seed, olive, and pomegranate extract oils.
Where are your products manufactured?

Our products are manufactured in Europe (Portugal) according to strict quality standards, with sustainably sourced ingredients, guaranteeing premium quality and a reduced ecological footprint.

Questions about the NB1 Keratin Home Smoothing Treatment
How long does the effect of the NB1 Keratin Home Smoothing Treatment last?

The effect of the treatment can last up to 12 weeks, depending on your hair type and maintenance routine.
How to correctly apply the NB1 Keratin Home Smoothing Treatment?
  1. Wash your hair with your usual shampoo
  2. Apply the product evenly to damp hair
  3. Leave to stand for about an hour
  4. Dry your hair with a hairdryer
  5. Run a straightener through to seal the product
  6. Avoid tying your hair for 48 hours after application
Can I color my hair before or after the keratin treatment?

It is recommended to color your hair 2 weeks before or 2 weeks after the keratin treatment for optimal results. Our formula with Color Stop System protects color-treated hair.
Is keratin treatment suitable for pregnant or breastfeeding women?

Although our products are formulated without harmful chemicals, we recommend that pregnant or breastfeeding women consult their doctor before use.

Questions about NB1 Keratin Shampoo and Mask
How often should I use NB1 Sulfate-Free Keratin Shampoo?

The shampoo can be used 2 to 3 times a week, or even daily on hair that is very stressed or exposed to external aggressions.
How to use NB1 Keratin Repair Mask for optimal results?
  1. Apply to clean, towel-dried hair
  2. Spread over lengths and ends
  3. Leave on for 5 to 20 minutes (longer for intense repair)
  4. For an intensive effect, wrap your hair in a warm towel
  5. Rinse thoroughly with lukewarm water
Why is it important to use a sulfate-free shampoo after a keratin treatment?

Sulfates in conventional shampoos can weaken hair fibers and accelerate keratin loss, reducing the lifespan of your treatment. Our sulfate-free shampoo preserves the effects of your straightening treatment for longer.
Can I use other styling products with NB BEAUTY PARIS treatments?

Yes, but we recommend using sulfate- and alcohol-free products to maintain the effects of keratin. Avoid products containing salt (sodium chloride), which can reduce the duration of the effects.

Questions about Results and Interview
What results can I expect from NB BEAUTY PARIS products?
  • Perfectly smooth and disciplined hair
  • Exceptional brilliance
  • Stronger, more resilient hair
  • Protection against external attacks
  • Easy styling every day
  • A significant reduction in frizz
How do I care for my hair after a keratin treatment?
  1. Use exclusively our sulfate-free shampoo and mask duo
  2. Avoid getting your hair wet for the first 48 hours after treatment
  3. Limit the use of heat tools or use a heat protectant
  4. Avoid tight elastics that can mark hair
Can my hair be too damaged for a keratin treatment?

No, our keratin products are particularly effective on damaged hair. Hydrolyzed keratin specifically targets weakened areas to repair them. For extremely damaged hair, we recommend regularly using our repair mask before proceeding with the straightening treatment.
Can I swim in a pool or sea after a keratin treatment?

Chlorine and salt can reduce the duration of the treatment's effects. If you swim, we recommend wearing a swimming cap and rinsing your hair immediately with fresh water after swimming, then applying our repairing mask.

Questions about Ordering and Delivery
What is the delivery time for NB BEAUTY PARIS products?

We deliver within 48 hours in mainland France with Colissimo. For Europe, delivery times are 3 to 5 business days. For the United States and Canada, delivery times are 5 to 7 business days.
What is the order processing process at NB BEAUTY PARIS?

We process orders Monday through Friday. Orders placed before noon will be processed the same day, while those placed after noon will be processed the following business day.