Vitamin C — Ascorbic Acid & Supplements
35 products · 25 in stock · €3.14–€20.90 · from €0.02/serving · Estonia 1–3 business days, free from €50.00
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All products in Vitamin C — Ascorbic Acid & Supplements (35)
- BIOTECHUSA Vitamin C500 120 Chewable Tablets€14.18
- BIOTECHUSA Vitamin C1000 - 100 Tablets€13.55
- BIOTECHUSA Vitamin D3 60tab€12.50
- DY Vitamin D3 + K2 Capsules€14.60
- ICONFIT Capsules B-Vitamin Complex N90€11.45
- MK-7 Vitamin K-2, 100 mcg, 60 Veg Capsules€20.90
- NOW C-1000 With Bioflavonoids 100 veg. caps.€15.65
- NOW Liquid Vitamin D-3 59ml€10.40
- NOW Methyl B-12 1000mcg 100 Lozenges€11.45
- NOW Vitamin D-3 & K-2 120 Caps€15.65
- NOW Vitamin D3 2000IU High Potency 120 softgels€10.40
- OstroVit Pharma Natural Vitamin C from Rose Hips 30caps€9.35
- OstroVit Vitamin B Complex 90tabs€7.25
- OstroVit Vitamin B1 60 capsules€8.30
- OstroVit Vitamin B2 60 Capsules€9.35
- OstroVit Vitamin B6 P-5-P 60caps€8.30
- OstroVit Vitamin B12 Methylcobalamin 100 mcg 120 tablets€5.15
- OstroVit Vitamin C 30tabs€6.20
- OstroVit Vitamin C 500mg 30 tabs€4.10
- OstroVit Vitamin C 1000mg 20tabs€3.14
- OstroVit Vitamin D3 + K2 90 tabs€7.25
- OstroVit Vitamin D3 2000 IU 60 Softgels€7.25
- OstroVit Vitamin D3 4000 IU + K2 100 tabs€9.35
- OstroVit Vitamin D3 4000 IU 120 Caps€9.35
- OstroVit Vitamin K2 200 Natto MK-7 90tabs€10.40
- BIOTECHUSA B-Complex 60tabOut of stock
- BIOTECHUSA Vitamin E 100softgelsOut of stock
- DY Vitamin B ComplexOut of stock
- ICONFIT Softgel D3-Vitamin 4000 IU N90Out of stock
- OstroVit DHA + Vitamin D3 60capsOut of stock
- OstroVit Pharma D3 4000 IU + K2 MK-7 90 TabsOut of stock
- OstroVit Vitamin D3 + K2 + Calcium 90 tabsOut of stock
- OstroVit Vitamin D3 5000 IU 250 CapsOut of stock
- SELF B-Vitamin Complex + Vitamin C + Zinc 60capsOut of stock
- VitalHarmony Vitamin D3 4000 IU + K2 MK-7 90 CapsulesOut of stock
Useful Articles
What is vitamin C and why is it important for immunity?
Vitamin C (ascorbic acid) is a water-soluble vitamin and one of the most powerful natural antioxidants. It is essential for normal immune function, collagen synthesis (affecting skin elasticity and joint health), iron absorption, and protecting cells from oxidative stress. Since the human body cannot produce or store vitamin C, it must be obtained daily from food or supplements.
The recommended daily intake of vitamin C for adults is 75-90 mg, but many health experts recommend 500-1,000 mg per day for optimal immunity, especially during cold and flu season. Vitamin C is available in several forms: ascorbic acid (most common), buffered vitamin C (gentler on the stomach), liposomal vitamin C (best bioavailability), and vitamin C powder. For athletes, vitamin C is particularly important as intense training increases oxidative stress.
Frequently asked questions about vitamin C
The recommended minimum is 75-90 mg per day, but for optimal immune support, 500-1,000 mg per day is suitable. For athletes and during stressful periods, up to 2,000 mg per day is recommended. The upper safe limit for vitamin C is 2,000 mg — higher doses may cause digestive discomfort.
Ascorbic acid is the most common and affordable choice. Buffered vitamin C (calcium ascorbate) is suitable for those with sensitive stomachs. Liposomal vitamin C offers the best bioavailability — up to 1.5 times higher absorption compared to regular ascorbic acid.
Vitamin C is water-soluble and excess is excreted in urine, but very high doses (over 2,000 mg) can cause diarrhea, nausea, and kidney stones. Split larger doses throughout the day in smaller portions — this also improves absorption.
Vitamin C can be taken at any time of day. Morning intake with food is the most popular choice. Vitamin C improves iron absorption, so those taking iron supplements should take them together. Avoid vitamin C right before bedtime, as it may disrupt sleep for some people.