Amazon shoppers can't get enough of this affordable vitamin C toner and serum

Both have thousands of five-star reviews and fall way under the $20 mark

sliced orange with skincare bottles
(Image credit: Artfully79 via Getty Images)

The best vitamin C serums are a skincare routine staple. They come with a whole host of benefits, brightening and tightening your skin and offering antioxidant protection.

If you're in the market for a new addition to your skincare routine, who better to look to than affordable and natural skincare brand InstaNatural? Two of the best selling Amazon beauty products, its vitamin C serum and facial toner, have amassed more than 15,000 five-star ratings between them and each cost less than $18. That's no mean feat!

The serum contains both ferulic acid and hyaluronic acid and promises to help unclog pores, reduce discoloration and dark spots and hydrate and plump your skin – and it has more than 9,000 positive reviews.

"This serum is magic. It’s soaks right into your skin," writes one five-star reviewer. Your pores just pull it right in and your skin feels so soft plus it has many ingredients including vitamin C etc. that are so good for your face. My skin feels so soft, and I’m allergic to many fragrances but this is so light, it’s almost fragrance free[...] So give it a shot. I’m glad I did."

InstaNatural Vitamin C Serum with Hyaluronic Acid, $17.78, Amazon

InstaNatural Vitamin C Serum with Hyaluronic Acid, $17.78, Amazon

A daily hydrating and radiance boosting serum with ferulic acid, hyaluronic acid and sea buckthorn oil.

InstaNatural Vitamin C Facial Toner, $13.97, Amazon

InstaNatural Vitamin C Facial Toner, $13.97, Amazon

A vitamin C and glycolic acid toner designed for sensitive and dry skin types.

Meanwhile the vitamin C toner also contains glycolic acid to exfoliate and prep the skin for the rest of your routine, promising tighter and younger looking skin.

"When I started using this toner I noticed and improvement with my skin drastically in 30 days [sic]," one five-star reviewer explains. "It had a natural glow and sheen to it. The texture of my skin appears smoother as well as clearer. It allows my makeup to go on smoothly allowing me to look more natural. I even go makeup free and just spray this toner on and I have a fresh faced glow!!! I get compliments on my skin as well!!"

At less than $20 dollars each, they're definitely worth a go. Next, be sure to read our guides on how to use a vitamin C serum and should you use your vitamin C serum in the morning or at night.

Are you already a fan of these best selling beauty buys? 

Lucy Abbersteen

Lucy is a beauty journalist who has written for titles including Marie Claire, Cosmopolitan, OK!, woman&home and Women's Health, as well as regularly contributing to My Imperfect Life. Her work covers everything from skin and haircare tips to trying and testing the latest beauty launches, and interviewing celebrities and experts. A certified dog person, her other interests include mental wellbeing, books, piña coladas and not getting caught in the rain.