Lipocils ExpertThe brush color may change to brown due to the natural penetration of the eyelash serum into the brush. But it will not affect its efficacy. Fuller looking lashes After 30 days of the clinical test*** : Longer lashes: +36 % Growth (+2. 1mm on average)* Natural pigmentation: +50% Lash curliness: +50 % Lash strength: +50 % * Clinical test 18 subjects 30 days ***Clinical test 15 subjects 30 days. Lipocils Expert Lipocils Expert, contains 12 plant