Davines NaturalTech Tailoring Illuminating Booster 3 enhances the effect of the bases, providing shine to colored hair. Barbera is the grape variety that has been studied for its acidity. From the pomace, the skins that have undergone the winemaking process, it was possible to extract tartaric acid, an alpha hydroxy acid which, thanks to its low pH, facilitates the closure of the cuticles, promoting the effect of shine. Our extract is particularly sustainable and able to promote the concepts of regeneration and circularity, since it comes from a winemaking by-product, grape pomace.