See Why These 5 Eyebrow Serums Have Over 1,000 Reviews on Amazon

The Product: Essy Beauty Eyelash & Brow Serum Growth Enhancer ($45)

The Rating: 5 stars, over 3,200 reviews

Why People Love It: This popular product helps both eyebrows and lashes; see what this reviewer had to say: "I was worried about my eyebrows because they were thinning. Once I found this product and started using it, I saw results within just a few weeks. They were totally fuller."