dr. Hauschka Regenerating Oil Serum Intensive is a firming oil serum for demanding and mature skin that becomes dry and more sensitive. Protects the skin and increases resistance. The oil serum is thicker and richer than a normal serum and is completely attuned to the effect of the Regeneration Day Cream Intensive. The formula of blackthorn, almond oil and olive oil improves the elasticity of the skin and strengthens the skin barrier.