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Heiki Heiki hair serum with vitamins A, C and K cuts breakage by up to 77%

The Heiki Heiki smoothing hair serum, available at Rossmann, combines vitamins A, C and K with hydrolysed proteins to form a heat-activated protective film during styling. The manufacturer claims it reduces breakage and micro-damage by up to 77%, a benefit corroborated by users on the Wizaż.pl beauty forum. The product also adds softness, shine and smoothness while strengthening the hair structure.