ACTiiv Amplify Lash & Brow Enhancing Serum is a lightweight formula designed to nourish and enhance the appearance of lashes and brows. This concentrated serum works to condition and strengthen delicate hair, promoting a fuller, more defined look. The 0.03 fl oz/1 ml size makes it perfect for precise application and travel. This 4-pack bundle ensures you have a continuous supply for your daily routine. Ideal for anyone looking to enhance their natural lashes and brows with a nourishing, easy-to-use serum.