Treatment for lice
Effective and non-toxic

NYDA is a revolutionary topical treatment for the eradication of head lice. Very safe, it penetrates deep into the smallest breathing openings of lice, larvae, as well as the respiratory system of the egg and replacing the air and killing in three stages, from eggs to adult lice.

Non-toxic formula
Effective in 58 seconds

NYDA® has a UNIQUE dual action dimeticone 100 cSt6 allowing it to penetrate deeply into the tiniest parts of the lice, larvae and also the egg’s breathing system, replacing the air.

This prevents the exchange of gases, provoking death of head lice and its eggs in a physical fashion7 within 58 seconds. ( Watch study's video invitro study )

Effective from

the first

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

  • Kills the eggs (nits) and not only the lice.
  • Does not contain any neurotoxic chemicals.
  • Safe for hair.
  • A pleasant smell, appreciated by children.
  • Simple and easy to use.
  • Suitable for children as young as 2 years of age.
  • Covered by ODBN, NIHB, RAMQ & Alberta Health.
  • Nyda is available in all pharmacies.

Effective for all hair types

The especially designed plastic lice comb slides easily and comfortably through your child’s hair, when it’s parted into strands.

The lice can then be very easily seen on the orange background.

The teeth of the comb are so close together that the lice cannot escape and the combing doesn’t rip the hair.

The lice comb has rounded tips to avoid scratching the skin. The tooth gap is 0.2mm, which prevents the smallest lice from slipping between the teeth.

NYDAComb is especially designed ergonomic metal comb that removes head lice and dead nits (eggs) from the scalp, particularly if the hair is thick and curly.

Dead nits are important to remove from scalp after NYDA treatment. NYDAComb does the job and gets rids of all the dead nits.

NYDAComb is a primary diagnosis tool for detecting head lice and eggs as well as removing dead nits and is also a great tool for wet combing method.

The stainless steel teeth of the NYDAComb are designed to be close (0.15mm) enough that the lice cannot escape.

NYDAComb has rounded tips to prevent any skin damage and make the use comfortable for the patient.

NYDAComb has an ergonomic and distinct orange handle that allows the caregivers to easily see lice and eggs as well as ensures easy handling.

NYDAComb a high quality device can be cleaned with water and wiped clean with a tissue.

NYDA vs other products

source of comparative study

Adapted from : MSSS. “Intervention guide: Guidelines for controlling head lice in schools and childcare centres", [online – (French only)], 2012.


Unsurpassed efficacy
clinically documented study

Randomized, controlled, observer-blinded comparative trial


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 Response of NYDA vs NIX

In vitro comparative study:
Ovicidal (egg killing) effect of two conventional head lice preparations
(after exposure to the preparations)


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 suffocates lice in all of their developmental stages

Get Nyda

Available in
all pharmacies

Store Locator How to apply Nyda