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Thanks to its critical role in supporting your immune system, vitamin C has gained a lot of attention in recent years.
However, most people don't realise that vitamin C is involved in a myriad of functions that help your body perform at its best every single day—not just a supplement to take when you're feeling under the weather.
As an essential nutrient, the human body can't produce it on its own (so you must consume it from your diet). Additionally, it's also a water-soluble vitamin - meaning it needs to be constantly replaced.
For these reasons, it's important to ensure we're consuming enough vitamin C each day, either from our diet or appropriate supplementation.
As well as eating enough vitamin-C-rich foods, taking a high quality vitamin c supplement is a convenient way to ensure you're getting enough to support its array of benefits for our skin, joints, heart, brain & cells.
However trying to find the best vitamin C supplement can be overwhelming. (That's where we come in.)
If you're on a mission to boost your vitamin C intake, this guide will cover the science behind vitamin C & help you find the best supplement for your needs.
Complete with capsules, powders & gummies – here are our top 5 supplements worth trying.
What Is Vitamin C?
Vitamin C — also known as ascorbic acid — is a water-soluble vitamin, antioxidant & essential nutrient with potent anti-inflammatory properties.
As well as being vital for a healthy immune system, it's also necessary for collagen production, which is important to our skin & other structures within the body.
It also plays a critical role in supporting a number of your body’s most vital functions including your joints, cells, blood vessels, bones & cartilage.
Since the body can’t produce vitamin C on its own, it relies on diet to ensure you get an adequate supply. High quality sources of vitamin C include fresh fruits (especially the citrus variety), potatoes & vegetables.
Many people also choose to take a vitamin C supplement to ensure their levels stay sufficiently topped up.
Vitamin C Benefits:
Energy
Immunity
Mood
Bones
Metabolism
Skin
Vitamin C Supplements: 2025 Buyers Guide
Vitamin C supplements come in many different forms, ranging from tablets and capsules, through to drinks, powders & even gummy vitamins.
With so many different option on the market it’s easy to get confused. That’s why we've put together this guide to help you understand your options and cut through the jargon.
Without further ado, here's what to look for and what to avoid when shopping for a high quality Vitamin C supplement.
3 Things To Look For:
1
Food Sourced
When selecting a vitamin C supplement, one of the most important factors is the form of vitamin C & how well it is absorbed by the body.
Because food is always the best source of nutrition, we recommend looking for a supplement made with wholefood, natural & fruit-sourced sources like acerola cherry.
Acerola cherry contains a whopping 30 to 90 times more vitamin C than citrus fruit. Plus it's well absorbed compared to synthetic alternatives because it's already it a natural form - ready to be used by the body.
2
Potency
The amount of vitamin C in your supplement is just as important as where it's coming from, so it's important to ensure your supplement has a high potency.
In stand-alone vitamin C supplements for adults, you should look for 100 milligrams of vitamin C & upwards per serving to ensure the product will be effective.
While many multivitamins also contain vitamin C, it is usually in a synthetic form and is often included in tiny doses that are usually too small to be effective.
3
Clean Ingredients
High quality supplements come with the promise of purity. Typically the shorter and cleaner the list of ingredient, the better.
Look for products that are free from artificial colors, flavors, sweeteners, dyes—and, whenever possible, free from gluten, soy, dairy, and GMOs as well. These are all signs of a high quality supplement.
Also look for a brand that clearly states its full list of ingredients & dosages on the the label rather than hiding behind "proprietary blends" which only give a combined dosage.
What To Avoid:
Ascorbic Acid
Ascorbic acid is the cheapest and most readily available form of vitamin C on the market but it's not the same as full spectrum vitamin C obtained from natural food-based sources.
Most cheaper vitamin C products are made with ascorbic acid which is made synthetically in a lab, but is not a natural source of Vitamin C.
Fillers & Additives
Read the back label of any supplement carefully and watch out for any synthetic fillers or additives. Avoid any unnecessary ingredients or bulking agents such as magnesium stearate, titanium dioxide, starch, iron oxide, or microcrystalline cellulose which don't offer any nutritional benefit.
Your Vitamin C Supplement Checklist:
Satisfaction Guarantee
It's important that any manufacturer stands behind their product and is willing to give your money back if you aren't happy with the results. Many manufacturers now offer an extended returns policy or 100% satisfaction guarantee for as long as 30 or 60 days. This gives you plenty of time to try the supplement "risk free" to make sure it's what you're looking for.
GMP Standards
Buy from a reputable brand that submits their products for multiple rounds of quality testing, from raw ingredients to finished product. Look for products manufactured to the GMP code of conduct. This is a strict set of manufacturing and quality processes that help to ensure you're getting a premium quality, safe and effective product. Look for a manufacturer which adheres to GMP practices and displays this on their website or packaging.
Our #1 Vitamin C Supplement For 2025: Puro Vitamin C by Purolabs
For its ultimate combination of nourishing wholefood vitamin C, superfood complex & ultra clean formula, Puro Vitamin C is going to be the best bet for most people.
Each capsule delivers a potent dose of natural fruit-sourced vitamin C from acerola cherry - one of the most abundant natural sources of vitamin C on the planet.
This product is also made in the UK to GMP standards and 100% free from sketchy additives, fillers & bulking agents that are commonly found in most supplements.
But what really sets it apart is the truly comprehensive 60 day, 100% satisfaction guarantee - allowing you to try the product risk-free for 60 days to ensure you see the benefits.
Why You'll Love Puro Vitamin C:
Vitamin C wholefood complex including acerola cherry, parsley, blackcurrent, elderberry & rosehips.
Easy to swallow, stomach friendly & non-acidic formula that's safe to take on an empty stomach.
Vegan-friendly & packed with nourishing bioflavonoids, phytonutrients, minerals & antioxidants.
Our #1 Pick
Purolabs
Puro Vitamin C
From £18.33 per bottle
With an ultra clean formula that's 100% free of any fillers or unnecessary ingredients, this product has over 150+ verified 5-star reviews. Feedback from customers is extremely impressive - with many reporting results such as more energy, clearer skin & improved mood - just to name a few.
Ratings Breakdown
Quality
The commitment to quality is second-to-none. They focus on the highest-quality, most clinically-tested ingredients without the usual additives or fillers commonly found in most supplements.
Quality
The commitment to quality is second-to-none. They focus on the highest-quality, most clinically-tested ingredients without the usual additives & fillers found in most supplements.
Value
You can definitely find vitamin c supplements cheaper - but if you want true value for money, we think it's worth the investment in your health.
Value
You can definitely find vitamin c supplements cheaper - but if you want true value for money, we think it's worth the investment in your health.
Customer Experience
The website is easy to navigate; the delivery is fast and free; and the items come well-packaged. Customer feedback is excellent.
Customer Experience
The website is easy to navigate; the delivery is fast and free; and the items come well-packaged. Customer feedback is excellent.
Brand
While a relative newcomer, the brand has been on the scene for a couple of years now, slowly building their reputation for quality products with premium ingredients.
Brand
While a relative newcomer, the brand has been on the scene for a couple of years now, slowly building their reputation for quality products with premium ingredients.
Perks
The product comes with a truly risk-free 60 day 100% satisfaction guarantee so you can try the product first to ensure it's suitable for you.
Perks
The product comes with a truly risk-free 60 day 100% satisfaction guarantee so you can try the product first to ensure it's suitable for you.
Shop Our #1 Pick
Puro Vitamin C by Purolabs
Other Options Worth Considering:
Larme Lipo is an impressive liposomal vitamin C supplement that offers high bioavailability & delivers a whopping 1450mg of vitamin C per teaspoon.
While the taste won't be for everyone and some will prefer the convenience of capsules, this is a high quality liquid formula that's non-GMO & free from unnecessary ingredients.
You can either take it straight or mix it with water, depending on your own personal preference. Each bottle contains 50 servings and costs approximately. £23.
Doctor's Best Vitamin C Gummies
These vegan-friendly, orange-flavour gummy bear vitamins from US manufacturer Doctor's Best provide a tasty way to get your daily vitamin C dose.
The gummies are sugar-free, non-GMO, halal, cruelty-free & gluten-free, but unfortunately a little higher in additives. This will particularly be a popular option for younger family members or people who have difficulty swallowing capsules.
Two gummies per day provides 250mg of vitamin C, which each bottle containing 120 gummy bear vitamins (enough to last for 2 months).
Nature Gold Acerola Powder
This 100% pure & freeze-dried acerola cherry powder from Nature Gold is a clean & pure option that's 100% free from synthetic additives and chemicals.
Each serving of 2g can be added to water, juice or even your morning breakfast , and has a sweet and excellent taste that you'll definitely look forward too!
As an abundant source of vitamin C, acerola cherry is also rich in vitamins A, B1, B3 & bioflavonoids, making this a clean and potent all-round immunity booster if you're looking for a high quality powdered supplement.
Effervescent tablets are growing in popularity as they provide a tasty way to build vitamin C supplementation into your daily wellness routine.
Each tablet of Higher Nature Vitamin C provides 1000mg Vitamin C & is uniquely free from aspartame, saccharine & other additives compared to other effervescent Vitamin C products on the market (which often contain artificial colourings).
The tangy orange flavour is naturally sweetened with fruit sugar & stevia and each bottle of this product contains 20 tablets.
Shop Our #1 Pick
Puro Vitamin C by Purolabs
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