Vitamin C
Powerful antioxidant essential for collagen synthesis and immune function.
How it works
Mechanism of Action
Vitamin C is a cofactor for prolyl and lysyl hydroxylase, enzymes essential for collagen synthesis. It also neutralises free radicals.
Evidence-based uses
What Vitamin C Is Used For
May reduce cold duration. Higher doses during illness may help.
Clinical Evidence
Regular vitamin C supplementation (200mg+) reduced cold duration by 8% in adults and 14% in children.
Vitamin C (200mg+/day) reduced cold duration by 8% in adults and 14% in children. Supplementation at onset of symptoms reduced duration and severity in therapeutic trials.
Essential cofactor for collagen synthesis. Also provides antioxidant protection.
Clinical Evidence
Systematic review found oral vitamin C supplementation (500-1000mg/day) improved skin elasticity, reduced wrinkle depth, and enhanced collagen density in multiple clinical trials.
Safety
Interactions & Warnings
High-dose vitamin C (>1000mg/day) may reduce the anticoagulant effect of warfarin. Standard doses are generally safe.
Compare prices
Buy Vitamin C in Australia
8 products compared across Australian retailers. Sorted by price per serve.
| Product | Price | /serve | |
|---|---|---|---|
Best NOW Foods Vitamin C-1000 with Rose Hips, 250 Tablets iHerb | $18.99 | $0.08 | Buy |
Blackmores Vitamin C 500 Chewable 200 Tablets Chemist Warehouse | $16.99 | $0.09 | Buy |
Nature's Way Nature's Way Vitamin C 1000mg Chemist Warehouse | $16.49 | $0.11 | Buy |
Life Extension Vitamin C 1000mg with Bio-Quercetin, 250 Tablets Life Extension | $29.99 | $0.12 | Buy |
Thompson's Vitamin C 1000mg Chewable 150 Tablets Aussie Health Products | $24.95 | $0.17 | Buy |
Life Extension Life Extension Vitamin C 1000mg Life Extension | $16.50 | $0.28 | Buy |
Garden of Life Vitamin Code Raw C 120 Capsules Garden of Life | $34.99 | $0.29 | Buy |
Thorne Thorne Vitamin C with Flavonoids Thorne | $28.00 | $0.31 | Buy |
Prices in AUD. Some links are affiliate links — we may earn a commission at no extra cost to you.
Should you take Vitamin C?
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This information is for educational purposes only and is not intended as medical advice. Always consult a healthcare professional before starting any supplement. Evidence ratings are based on peer-reviewed clinical research. Individual results may vary.