With nearly 10,000 reviews and a 4.3 star rating on Amazon, TruSkin Naturals Vitamin C Serum is the top selling facial serum and the fourth top-seller of beauty products on the site overall.

Amazon offers a slew of anti-aging products to choose from, but LilyAna Naturals Vitamin C Serum is a clear favorite. And for a limited time only, it’s on sale for just $18.

If you're looking to add a vitamin C serum to your arsenal, we've found one you may want to check out. Backed by more than 3,200 reviews and a 4.3-star rating on Amazon Canada, the Maritime Naturals ...