Collection: Vitamin C

What Is Vitamin C?

Vitamin C (ascorbic acid) is a water-soluble vitamin best known for supporting immune function and protecting cells from oxidative stress. It is also essential for collagen formation, which helps maintain healthy skin, blood vessels, bones, cartilage and gums. Because the body cannot produce or store large amounts of vitamin C, regular intake from food or supplements is important. Vitamin C is found in many fruits and vegetables, especially citrus fruits, berries, kiwi, bell peppers and broccoli. In dietary supplements, vitamin C is available in forms such as ascorbic acid, sodium ascorbate, calcium ascorbate and buffered formulas, as well as in powders, tablets, capsules and gummies.

Benefits of Vitamin C Supplements

Vitamin C contributes to the normal function of the immune system and helps protect cells from oxidative stress. It also contributes to normal collagen formation for the normal function of skin, blood vessels, bones, cartilage, teeth and gums. Vitamin C supports normal energy-yielding metabolism and helps reduce tiredness and fatigue. It also increases iron absorption, which can be useful for people using iron supplements or those with low iron intake. Vitamin C supplements are often used during seasonal changes, periods of stress, or when dietary intake of fruits and vegetables is low.

Uses of Vitamin C

Vitamin C supplements are typically taken once daily or split into multiple doses depending on the product. Many people prefer taking vitamin C with meals to improve tolerance. Powders can be mixed into water, while tablets, capsules and gummies offer convenient dosing. Vitamin C is commonly combined with zinc, vitamin D or herbal extracts in immune-support formulas. On our category page you can explore different vitamin C products – from simple ascorbic acid to buffered and timed-release formulas – and choose the option that fits your needs.

Vitamin C: Side Effects and Safety

Vitamin C is generally safe when used as directed, but high doses may cause digestive discomfort such as stomach cramps or diarrhea. People prone to kidney stones should consult a healthcare professional before using high-dose vitamin C, as it may increase oxalate levels in some cases. Vitamin C can also affect certain lab tests. Pregnant and breastfeeding women and people taking prescription medicines should seek medical advice if they plan to use high-dose supplements. Always follow label directions and choose appropriate dosing.

Where to Buy Vitamin C in Estonia?

In Estonia, vitamin C supplements can be purchased from our e-shop fits.ee.