Olplex number 4 is a shampoo intended for all hair types. A leading advantage of the shampoo is the strengthening of the hair bonds and the restoration of the damaged hair fiber.
Olplex shampoo contains a unique formula of the Olplex company which is found in the shampoo. The unique Olplex formula restores, strengthens, gives moisture and shine to the hair. The shampoo does not cause damage and frizz, giving results of strong, healthy-looking hair.
Olaflex shampoo number 4 does not contain sulfates, parabens or gluten.
Shampoo number 4 is vegan and safe to use with color or shades. Suitable for all hair types.

Using instructions for Olplex shampoo number 4:

Olaplex shampoo is recommended for use in any overlap, highly recommended for use after using Olaplex No. 3 preparation.
You should lather the hair well with the shampoo, apply the substance to the entire length of the hair, including the roots, and rinse well with lukewarm water.
For a favorable result, have Use Olplex No. 5 conditioner for daily use or Olplex No. 8 nourishing mask.
Also available and sold in a particularly affordable kit.