13 women review Garnier's most potent vitamin C serum yet.

As a girlie with a fairly minimal skincare routine, and a lover of rules (if Leigh Campbell has stuck by it for years, I shan't be straying), it's tricky to convince me to add a new step or ingredient. 

With endless skincare ingredients to keep up with, many shrouded in obscurity, there are the chosen few I can probably count on one hand that will always hold a place in my routine. The inner-circle, if you will.

One being vitamin C. 

The incredibly effective antioxidant promises everything from fading dark spots to fighting free radicals (which break down collagen) to diminishing fine lines and wrinkles. 

This well-backed water-soluble vitamin is considered an anti-ageing superstar for all skin types. So, when we see a savey option enter the market for $40, like the new Garnier Vitamin C Brightening Night Serum, we're after goss about its results, like, yesterday.

It’s infused with 10 per cent of pure vitamin C to visibly brighten dull and tired-looking skin – an ideal concentration for efficacy without being sensitising. Garnier's formula also contains salicylic acid (a BHA that keeps pores clear), plus hyaluronic acid and glycerin, which helps the skin to hold onto hydration.

There's a strong case for using antioxidants to fight free radicals in the evening, as much of the skin's damage caused by UV exposure in the day can continue hours after the sun has set. Suited for all skin types and tones, this dermatologically-tested serum is designed to visibly brighten dull and tired-looking skin overnight, while our skin cells naturally repair and regenerate during sleep.

With only one way to really know, we decided to send Garnier's Vitamin C Brightening Night Serum home with 150 of our You Beauty Panellists so that they could give us their meaningful insights after testing over four weeks.

You wanna know what they said?

Well then. Twist my arm.

83.5 per cent of them said the serum made their skin look brighter, with 24 per cent of them seeing results as soon as the first use. 82 per cent said they'd recommend it on, and 69 per cent confirmed they'll absolutely be adding it to cart.

Here are some of our Panellists' most pervy reviews.

Listen: You Beauty's Leigh and Kelly share the best way to use hyaluronic acid and vitamin C. Post continues below.

Kristie, TAS: "I’ve had multiple comments that I'm 'glowing'."

"Wowza! I had visible results within a week or so! I have uneven skin colouring, and two little kids so my skin does look tired and flat most days. Not anymore! I’ve had multiple comments that I'm 'glowing' and that’s because of this new Brightening Night serum! It feels a bit tacky as it dries, and that sensation disappears after 10 minutes or so. If you’re texture sensitive it might be something to note, but I absolutely love it! 5 out of 5."

Jennifer, NSW: "The scarring from acne has faded."

"After the first night, my skin was visibly brighter, while after using it every night for a week, I noticed that the scarring from acne has faded much faster. By the end of the month, the results from this product are enough to convince me to keep using it as my vitamin C serum of choice as I've not experienced sustained results like this from other brands."

Yadi, QLD: "Shocked how well this works for the price point."

"I was actually shocked how well this product works, especially for the price point. My skin after one use was feeling smoother, after 30 days of use I am getting compliments about “glowing”, and no, I’m not pregnant! This product goes to show that you can get effective and decent skincare with a pharmacy store budget. Super impressed! I also loved the subtle smell, and the texture. Not sticky and absorbed really well."

Keely, NSW: "The serum made my skin look better both with and without makeup." 

"I loved using this Brightening Night Serum! It felt so luxurious on my skin, and had practically no scent which is what I look for in skincare. After 4 weeks I noticed that my skin was brighter and I had a much more even skin tone. A surprising result that my skin was much less greasy (it is normally very greasy), I think as a result of being so hydrating as the serum contains hyaluronic acid. The serum made my skin look better both with and without makeup."

Image: You Beauty Panel.

Tanika, NSW: "It’s impressed me more than the high-end vitamin C that I was using prior."

"It’s impressed me more than the high-end vitamin C that I was using prior. This product has solidified itself within my routine."

Megan, NSW: "Helped even out my skin and added a bit more glow."

"I feel like it helped even out my skin and added a bit more glow. I didn’t notice any irritation or purging with the product which was good, too. The scent reminded me of citrus, better than other vitamin C scents (the ham scent!). I liked the dark bottle to help prevent oxidation and I haven’t had any problems with oxidation so far which is impressive for an open bottle. The dropper was easy to apply too. I'd recommend this serum."

Kuan-Yu, NSW: "Really hydrating, a great combination serum."

"I found this vitamin C serum really hydrating and the consistency really easy to use. It feels like a great combination serum and I would use it again given the price point. I saw visible results and would both recommend and repurchase!"

Image: You Beauty Panel. 

Jessica, TAS: "The best vitamin C serum I've ever used."

"It's the best vitamin C serum I've ever used, and definitely made my skin brighter. I have previously used vitamin C products in the morning, so this was an exciting change. I really liked this serum, and it felt nice going onto the skin."

Anastasia, SA: "Noticed brightness, clarity and smoothness in my skin."

"I really enjoyed using this product over the past month, I’ve used it nightly and have noticed a brightness in my skin, and also clarity and smoothness. I would continue using this and purchase again for myself in the future."

Sarah, NSW: "A nicer glow." 

"I have been using this every day as part of my routine. It was very easy to slot in. It had a great consistency, absorbed quickly and didn't feel sticky. Had little smell that I could pick up, so useability was great! In terms of results, I have noticed my skin is a little brighter and clearer. With consistent use I have had steady improvement with healthy-looking skin with a nicer glow."

Image: You Beauty Panel.

Ally, QLD: "Impressed by the price point."

"I didn't know what to expect from this serum but I'm quite impressed. It has a light consistency rather than being heavy and sticky so it sinks right in. I noticed after 1-2 weeks of use that my skin definitely looks brighter and more even. I'm also impressed by the price point of this product and as a bonus, it smells good too."

Molly, SA: "Saw a reduction in my under-eye area."

"I didn’t experience any irritation which was lovely! Saw a reduction in my dark under-eye areas, and a small reduction in the darkness of my spots. I'd score this with full marks and would buy again!"

Erin, NSW: "Keeping my skin fresh and bright-looking, and helping my pigmentation."

"I really enjoy this product and has been the perfect product to take travelling with me. It has that light citrus scent, is not sticky and I love the fact I can incorporate vitamin C into my nighttime routine, not just my morning! I feel this product is definitely keeping my skin fresh and bright-looking, and helping my pigmentation. Would definitely recommend for an affordable vitamin C!"

Image: You Beauty Panel.

Shop Garnier Vitamin C Brightening Night Serum and wake up to brighter, smooth and rested skin in 3 nights.

3 night results according to L'Oreal's Cosmeto-clinical study, 79 women, 7 weeks.

Feature Image: You Beauty Panel/Mamamia.