the first

* It is recommended to repeat the treatment 8 to 10 days after the first application

  • Free of insecticide or pesticide
  • Kills the eggs (nits) and not only the lice
  • Does not contain any neurotoxic chemicals
  • Safe for hair
  • Simple and easy to use
  • Suitable for all ages including pregnancy and breastfeeding
  • Effective for all hair types
  • Nyda is available in all pharmacies


NYDA vs Permethrin

Unsurpassed efficacy
clinically documented study

Randomized controlled trial, comparative trial conducted without the observer's knowledge

Heukelbach, J., D. Pilger, F. A. Oliveira, A. Khakban, L. Ariza et H. Felmeier. « A highly ef cacious pediculicide based on dimeticone: Randomized observer blinded comparative trial », BMC Infectious Diseases, vol. 8, 2008, p. 115.

Ovicidal effect of NYDA® vs Permethrin
(lethal effect on nits)

In vitro comparative study (following exposure of nits to both solutions)

Strycharz, J. et coll. « Ovicidal Response of NYDA Formulations on the Human Head Louse (Anoplura: Pediculidae) Using a Hair Tuft Bioassay », J Med Entomol., vol. 49, no 2, 2012, p. 336-342

NYDA effectively asphyxes lice at ALL stages of their development