It always works for me. I hope they don't change the formula, although they have modified it somewhat. Other products from this brand are not what they used to be.
Layetana, Y.
Hair serum with sealing and repairing effect, suitable for all hair types. Formulated with Cell Equalizer technology, in combination with arginine, which acts protected by a reactive anti-frizz layer. Helps control frizz leaving a soft and silky touch. Provides thermal protection against blow-drying. Enriched with vegan keratin that contributes to nourish the hair fibre. Free of animal ingredients, sulfates, silicones and artificial colourants.