Everyone I Know With Amazing Skin Uses This One Scientific Product

From bakuchiol to CBD oil, 2019 has officially been the year of trending skincare ingredients, and I've tried them all. From overcoming my fear of retinol to embracing a more pared-back approach to skincare in the form of olive oil (Emma Stone loves it, FYI), I love experimenting to work out which ingredients are truly worth putting on my skin.

There's one key ingredient, however, that I've wholly neglected to sing the praises of this year. Despite using it every single day in my own routine, this ingredient has been somewhat overlooked in favour of the flashy new launches that have been leading the way in 2019. (PHA, I'm looking at you.) Yet ask anyone with amazing skin which scientific ingredient it is that they swear by, and I guarantee it will be this one.

The ingredient in question? Vitamin C. Also known as ascorbic acid, vitamin C might not be anything new, but it's certainly a bit of a wonder ingredient if you aren't already using it. Found naturally in wide range of fruit and vegetables, it's essential to help maintain a healthy complexion by protecting your skin cells and promoting healing.

As someone with acne-prone skin, I started using a vitamin C serum daily when a facialist advised me that vitamin C is a great ingredient to use if you're looking to fade pigmentation or dark spots caused by old spots. But I was interested to find out what other benefits this ingredient has. After all, since using it regularly, I've noticed that my scarring has diminished and my complexion looks all-round brighter and healthier. 

To find out, I asked two skin experts for the professional angle on all things vitamin C—including what it does, how to use it and what the best vitamin C products on the market are. Keep scrolling to find out.

The benefits of vitamin C

"Vitamin C is a marketer's dream, as we all know it’s healthy," explained Georgie Cleeve, founder of skincare brand Oskia. "For skin, it not only plays a vital role in cell health but has hugely beneficial effects on skin condition. From reducing hyperpigmentation and evening skin tone to reducing fine lines and making skin stronger, more supple healthy and glowing."

Lisa Franklin, award-winning facialist and skin salon owner, agrees. "Vitamin C has so many benefits for the skin: it's an antioxidant, increases collagen synthesis, boosts skin luminosity and smoothes skin tone," she explained. "Topical application of vitamin C has been shown to reverse some of the age-related structural changes in the dermis—and has also been shown to prevent and treat UV-induced photo damage."

Rushing out to stock up on vitamin C serums yet?

The vitamin C flipside

"However, there are also huge problems with using Vitamin C,"  warned Cleeve "Mainly its famous instability and ability to oxidise almost immediately. Additionally, its penetration to skin caells is also problematic." This means that choosing a formula that will actually benefit your skin can be tricky.

Thankfully, there has been huge developments in the production of vitamin C products this year alone. "The quest for stable vitamin C derivates has caused a vast amount of research and many new derivates," said Cleeve. "The most stable form, which can be used at slower levels, is the oil-soluble ascorbyl tetraisopalmitate which has been clinically proven to be hugely effective at lower levels due to its stability and penetration qualities". Keep your eyes peeled for it in some of my vitamin C skincare picks below.

Using vitamin C

"I believe very strongly that in your 20s, protection is key," said Cleeve—making it the perfect time to introduce vitamin C to your routine. "Retinols can wait until your 30s (unless you have a skin condition you want to treat), but vitamin C is perfect for all ages above 16."

Franklin is keen to point out how beneficial vitamin C is to combat early signs of ageing, too. "It regulates collagen synthesis," she says. "Regular application will decrease wrinkles, reduce protein fibre damage and smooth the skin's surface."

The good news is that it works quickly—especially when you're using it morning and night. "Some people claim a brightness almost immediately, but expect six weeks before visible differences occur," advised Cleeve.

"Regular topical application for at least three months will show an overall smoother, brighter, younger-looking complexion," Franklin explained. "People with dry skin will notice improved moisturisation, and acne sufferers will notice reduced inflammation."

Choosing a vitamin C formula

All skin types can benefit from using vitamin C although Franklin pointed out that sensitive complexions might experience some irritation to start with while Cleeve advised that those with pigmentation, dullness and acne will see a more marked result. When it comes to choosing a vitamin C formula, however, what should we be looking out for?

"Be cautious not to fall for the 'the higher percent is better' line," said Cleeve. "It's about formula and clever formulations. As an easy guide, if a vitamin C protect changes colour or has a colour or smell, it has oxidised. If it contains water, be cautious. Ideally, oil-soluble capsules or airless pumps are a must—and choose a brand you trust with good science and proof."

Franklin also has a trick up her sleeve. "Look for products that also contain vitamin E as it stabilises vitamin C for maximum skin protection," she advised.

Keep scrolling to shop the best vitamin C products:

"I've just launched my brand-new Lisa Franklin Clinic Prive No. 1 Serum," said Franklin. "It's a soothing yet ultra-effective serum containing both vitamin C and E. The vitamin C used is ascorbyl tetraisopalmitate—a revolutionary form of vitamin C that absorbs deeper and faster into the skin than most other forms currently on the market."

It's no surprise that these are the vitamin C picks from Oskia founder Georgie—but they're seriously impressive. "Super C Smart Nutrient Beauty contains 2% ascorbyl tetraisopalmite, amongst other actives," Cleeve explained. You just twist off the top of the capsule to release a perfectly proportioned dose of the serum, which you can apply to clean skin morning and night.

I love a sheet mask, and I adore science-led brand Dr. Dennis Gross, so I was all over this new launch. It contains vitamin C (naturally) to instantly brighten and revive tired skin, but it also contains niacinamide, a water-soluble vitamin that diminishes pores and improves hydration in the skin. I'll have a stash on hand for a quick fix once party season starts next month.

Natural skincare brand Balance Me have recently undergone the chicest of transformations, and I love their simple new packaging. This new-look bottle contains the brand's same 99.8% natural vitamin C serum, which makes light work of reducing pigmentation and evening skin tone without any irritation—even if you're prone to sensitivity. 

Although not technically a vitamin C product, if it's brighter skin you're after, this glow-booster is one of my most recommended. It uses natural fruit acids to exfoliate, hydrate and even skin tone, alongside vitamin C–rich kakadu plum for an antioxidant boost.

Formulated with Nikkol VC-IP®—a powerful form of vitamin C—this daily moisturiser is a great bet for any complexion that needs a little rejuvenation. It boasts reoxygenating properties to improve both the firmness and elasticity of skin and boost brightness. And if you're a Beauty Pie member, it will only set you back a tenner.

Honestly, everything in Ole Henriksen's Truth collection is amazing, but a vitamin C–infused cleanser is particularly hard to come by. Don't be put off by the fact that it's a foaming formula—it's more of a rich, creamy lather that gently sweeps away makeup and grime without stripping away essential oils and moisture. Your skin will be left glowing once you rinse it clean.

If you prefer your base products to be more of a skin tint than a full-on foundation, the recently reformulated Laura Mercier Tinted Moisturisers will be right up your street. More dewy and hydrating than the originals, they also contain an antioxidant-boosting blend of vitamins C and E to protect your skin while providing coverage. So damn clever.

This innovative booster from celebrity-favourite skincare brand 111SKIN can be mixed with your favourite moistuiser or applied directly to your skin to combat pigmentation, age spots and uneven skin tone. This new version has been formulated with increased vitamin C levels, too, so it really packs a punch.

First up, this exfoliating mask uses airless technology packaging to keep the formula airtight for optimum efficacy. Clever! Second, it uses water-activated vitamin C granules that activate once you start massaging the product into your skin using damp fingertips to slough away dead, dull skin cells.

If you find the sheer amount of skincare options on the market overwhelming then get to know Tandem—they're a new skincare brand with a handful of hardworking formulas to simplify your routine. This powerful vitamin C booster contains that stable form of the good stuff—ascorbyl tetraisopalmitate—combined with olive squalane and vitamin E to brighten, smooth and soften your skin.

My current morning vitamin C serum of choice happens to be Rosie Huntington-Whiteley's favourite too. I've previously sung its praises but the 15% concentration of L-ascorbic acid has genuinely diminished the appearance of some pretty severe acne scarring, and I'm not sure that I could be without it now.

Lumene is one of my go-to skincare brands for great, affordable vitamin C options, but it's this glow-boosting facial mist that I've been enjoying recently. I use it in the morning after cleansing and over makeup in the afternoons for a luminous pick-me-up.

I always have a bottle of this serum in my bathroom cabinet, as I love how gentle it is. It combines vitamin C with magnesium (two things that your skin needs to maintain a healthy appearance) to form a milky texture that sinks straight into skin to impart a natural sheen.