Shop Wholesale Entropy Lash Booster Serum #Black. Entropy Lash Booster Serum in Black is a 2-in-1 lash care product that nourishes, strengthens, and adds color, acting as both a mascara and a conditioning treatment, featuring ingredients like Biotin, Madecassoside, and Centella Asiatica for enhanced growth, volume, and protection, ideal for post-perm care or daily use to achieve healthier, fuller, defined lashes with a clean, watery gel formula. 

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