Formaldehyde-free hair straightening
Smoother hair with up to 80% volume reduction, still requiring daily use of a hairdryer. Hair may remain slightly wavy.
Suitable for all hair types, especially recommended for wavy or frizzy hair.
Short, shoulder-length, and long hair: Approximately 2h00m
Hair with extra volume or length: Approximately 2h30m
3 to 6 months*
Smoothing cream: Synthetic, Formaldehyde-free.
Glyoxylic acid, carbocysteine
Compatible with all types of chemical treatments, including other relaxers based on guanidine and ammonium thioglycolate. Not compatible with henna.
Not recommended for severely damaged hair, individuals with serious scalp conditions, pregnant or breastfeeding women, boys under 12 years old, and girls who have not yet started their first menstrual cycle.
Up to 80% volume reduction
Formaldehyde-free hair straightening
Make your hair smoother and silkier with our Slett formaldehyde-free hair straightening. It lasts up to 6 months, is environmentally friendly, non-irritating during application, and very safe. In the video, you can see the entire process of the formaldehyde-free progressive blow-dry, including before and after results!
Aftercare for formaldehyde-free hair straightening
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- Do not wash your hair for 3 days after the treatment.
- Do not use hair ties to tie your hair for 3 days after the straightening treatment.
- For longer-lasting straightening results, it is recommended to use a specific range of hair care products designed for straightened hair.
Come and experience our Formaldehyde-free hair straightening in Laranjeiras – Lisbon, Queijas – Oeiras, Charneca da Caparica – South Bank, Entroncamento, or Abrantes!
Other questions about formaldehyde-free hair straightening
It is not the most suitable option. In this case, for truly straight hair, the best choice is laser hair straightening.
Yes, the hair has a permanent straightening effect; however, you still need to use a hairdryer to activate the straightening.
No, formaldehyde-free straightening reduces volume by 80% and provides a straightening effect; however, it does not remove 100% of the volume, giving your hair a more natural look.
The formaldehyde-free progressive straightening can alter hair colour by up to 3 tones, especially on coloured or highlighted hair. However, we can perform colour correction with toning within one week, restoring the hair to a shade similar to the original.
Yes, there is no problem. Unlike other straightening treatments, formaldehyde-free straightening does not damage the hair, so it can be done on highlighted hair, even if the highlights were done recently! You may notice a slight colour change after straightening, which can be easily corrected with toning, as explained earlier.
We do not recommend it. It is advised to have the hair straightening first and then wait a week before colouring or highlighting, as this process can slightly alter the pigmentation.
SLETT FORMALDEHYDE-FREE STRAIGHTENING | PRICE
OFFERS: PRO SHAMPOO + CONDITIONER
Short Hair
89,00€
Medium Hair
99,00€
Long Hair
109,00€
Hair with extra volume / extra length
+20,00€
VAT included at the current legal rate
VAT included at the current legal rate