When building out the perfect skin-care regimen, everyone can pretty much agree on the fact that it requires a few key products: a face wash, a trusty moisturizer, a retinol, and—my personal fave—a vitamin C serum. Dermatologists and facialists both recommend incorporating C into your routine for several reasons: It’s brightening, it neutralizes free radicals, and it’s a nourishing, powerful antioxidant.

So if you’re in the market to pick one up (or restock your beauty shelf), you’re undoubtedly faced with tons of options—all of which differ in concentrations, textures, and are blended with different ingredients, making this kind of a hard shopping decision. Alas: I’m here to help. After scouring Amazon, I’ve rounded up the top-rated vitamin C serums that have seriously glowing reviews. They’ve touched people’s lives, guys.

The most favored of all—TruSkin Naturals Vitamin C Serum ($20)—is blended with hydrating hyaluronic acid, is cruelty-free, and has garnered over 8,100 five-star reviews (no joke). Take it from Nanine, who notes: “I have been using this for about 10 days and my age spots are already fading. Very excited to see what happens in a few more weeks.” Then there’s InstaNatural’s Vitamin C Serum ($17), which is revered for fading acne scars. “I have had deep acne scars for about 10 years and have tried every product out there trying to at least minimize their appearance,” writes Karen. “I have been using this vitamin C serum on my face, and in two months they have disappeared completely.”

It’s inspiring stuff to hear about beauty products flexing their muscles and getting to work on people’s complexions. Ready to add to cart and reap the 5-star serums’ brightening benefits? Keep scrolling.

Top-rated vitamin C serums

TruSkin Naturals Vitamin C Serum $20

InstaNatural Vitamin C Serum with Hyaluronic Acid & Vitamin E $17

Mad Hippie Vitamin C Serum $27

Amara Beauty Vitamin C Serum $17

Tree of Life Vitamin C Serum $10

For more help, here’s a vitamin C serum buying guide. In related news: This is the truth on whether you can overdose on vitamin C.