Solgar Ester-C Plus 500mg Vitamin C - 50 Capsules

What Is Ester-C Vitamin C Supplement and How Can It Help You?

Vitamin C is one of the most widely recognised nutrients in the UK, and for good reason. It plays a central role in immune function, collagen formation, and protecting your cells from oxidative stress. The NHS confirms that vitamin C — also known as ascorbic acid — is an essential nutrient that the body cannot produce on its own, meaning you rely entirely on diet or supplementation to meet your daily needs. Solgar Ester-C Plus 500mg offers a buffered, non-acidic form of vitamin C that is designed to be gentler on the digestive system than standard ascorbic acid supplements. If you're looking to support your immunity or simply top up your intake, you'll find a wide range of options in our vitamins and supplements collection.

Each capsule delivers 500mg of calcium ascorbate — the active form of Ester-C vitamin C supplement — alongside naturally occurring vitamin C metabolites. These metabolites are thought to support the uptake and retention of vitamin C within white blood cells, which are central to your immune response. At just £6.99 for 50 capsules, this is a straightforward, cost-effective way to maintain adequate vitamin C levels throughout the year.

How Does Solgar Ester-C Plus 500mg Work in the Body?

Understanding how this supplement works helps you make an informed decision. Unlike standard ascorbic acid, Ester-C uses a patented manufacturing process that produces calcium ascorbate — a calcium salt of vitamin C — along with small amounts of vitamin C metabolites such as threonate, lyxonate, and xylonate.

• Calcium ascorbate is absorbed in the small intestine and transported into the bloodstream.
• The metabolites present in Ester-C are thought to facilitate uptake of vitamin C into white blood cells (leucocytes), where it is needed most for immune defence.
• Because it is buffered with calcium, the pH is closer to neutral, making it significantly less acidic than standard ascorbic acid — reducing the risk of stomach irritation.
• Vitamin C acts as an antioxidant, neutralising free radicals and supporting the regeneration of other antioxidants such as vitamin E.
• It is also essential for the biosynthesis of collagen, L-carnitine, and certain neurotransmitters.

Who Should Consider Using Solgar Ester-C Plus 500mg?

This supplement is suitable for most healthy adults who want to maintain adequate vitamin C intake. It is particularly well suited to those who find standard vitamin C supplements cause digestive discomfort. People who smoke, have a restricted diet, or are recovering from illness may have higher vitamin C requirements, as the NHS notes that certain lifestyle factors can deplete vitamin C levels more quickly.

• Adults with sensitive stomachs who cannot tolerate acidic vitamin C supplements
• People looking to support their immune system during winter months or periods of stress
• Those with diets low in fresh fruit and vegetables
• Individuals who smoke, as smoking is associated with lower vitamin C levels

How Does Solgar Ester-C Compare to Standard Vitamin C Supplements?

Is Solgar Ester-C Plus 500mg Suitable for Vegans and How Should It Be Stored?

Solgar Ester-C Plus 500mg capsules are suitable for vegetarians. However, if you follow a strictly vegan lifestyle, it is worth checking the current product label, as formulations can change. Store the capsules below 25°C in a cool, dry place away from direct sunlight. Keep the bottle tightly closed and out of reach of children. Do not use after the expiry date printed on the packaging.

If you are managing a long-term health condition or taking prescription medicines, it is always worth checking with your pharmacist before adding any new supplement to your routine. You might also find it helpful to explore our cold and flu range for additional immune support products during the winter season.

This product is a food supplement. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

What Is Solgar Ester-C Plus 500mg and What Is It Used For?

Solgar Ester-C Plus 500mg is a food supplement containing calcium ascorbate — a buffered, non-acidic form of vitamin C. It is used to help maintain adequate vitamin C intake in adults who may not get enough from their diet alone. Vitamin C contributes to the normal function of the immune system, the protection of cells from oxidative stress, normal collagen formation for the function of skin, bones, cartilage, and blood vessels, and the reduction of tiredness and fatigue. The NHS advises that adults need 40mg of vitamin C per day, though requirements may be higher in certain circumstances such as illness, smoking, or restricted diet.

What Do You Need to Know Before Using Solgar Ester-C Plus 500mg?

Before taking this supplement, read the following carefully. Although Ester-C is generally well tolerated, there are some important considerations.

Do not take this supplement if you:

• Have a known hypersensitivity to any of the ingredients
• Have haemochromatosis (iron overload disorder) — vitamin C increases iron absorption
• Have a history of kidney stones (calcium oxalate type) — high-dose vitamin C may increase oxalate excretion
• Have glucose-6-phosphate dehydrogenase (G6PD) deficiency

Speak to your doctor or pharmacist before taking if you:

• Are pregnant or breastfeeding
• Have chronic kidney disease
• Are due to have any medical tests — high-dose vitamin C can interfere with certain laboratory results

Possible interactions with other medicines:

• Warfarin — vitamin C at high doses may affect anticoagulant control
• Aluminium-containing antacids — vitamin C increases aluminium absorption
• Oestrogen-containing medicines (including the combined oral contraceptive pill) — vitamin C may increase oestrogen levels
• Statins — concurrent use with high-dose antioxidants may theoretically reduce efficacy in some studies, though evidence is limited

How Should You Use Solgar Ester-C Plus 500mg?

Always follow the label instructions or the advice of your pharmacist. This supplement is for oral use only.

1. Take one capsule daily, or as directed by your healthcare professional.
2. Swallow the capsule whole with a full glass of water.
3. Take with food to minimise any risk of stomach discomfort.
4. Do not open or crush the capsule unless advised to do so.
5. Do not exceed the stated dose.

What Are the Possible Side Effects of Solgar Ester-C Plus 500mg?

Ester-C is considered gentler on the stomach than standard ascorbic acid, but side effects can still occur in some people. If you experience any severe or persistent symptoms, stop taking the supplement and speak to your pharmacist or GP.

Common side effects:

• Mild gastrointestinal discomfort (bloating, nausea)
• Loose stools or diarrhoea, particularly at higher doses
• Heartburn in sensitive individuals

Less common side effects:

• Headache
• Flushing
• Increased urinary oxalate excretion (relevant if you are prone to kidney stones)

If you experience signs of an allergic reaction — such as rash, swelling of the face or throat, or difficulty breathing — stop taking the supplement immediately and seek urgent medical attention. You can also browse our allergy and hay fever range if you are managing other allergic conditions alongside your supplement routine.

How Should You Store Solgar Ester-C Plus 500mg?

• Store below 25°C in a cool, dry place
• Keep away from direct sunlight and moisture
• Keep the bottle tightly closed after each use
• Keep out of the sight and reach of children
• Do not use after the expiry date printed on the label
• Do not store in the bathroom or near a heat source

Proper storage helps maintain the potency and quality of the supplement throughout its shelf life. If you notice any changes in colour, smell, or texture, do not use the product and dispose of it safely.