Free deliveryWhy The Wellness recommends this
Curated, not stocked.
Vitamin C is one of the few supplements where the case for daily use is straightforward — and yet the delivery format matters. Thorne's powder allows precise, incremental dosing that a fixed capsule cannot offer, which is relevant for anyone titrating intake around illness, stress, or confirmed deficiency. The single-ingredient formulation reflects the no-nonsense approach we expect from brands we stock. It earns its place for simplicity and reliability.
About this product
Vitamin C Powder
Thorne Vitamin C Powder is a pure ascorbic acid supplement in powdered form, designed for flexible, daily vitamin C intake. Ascorbic acid is the biologically active form of vitamin C, a water-soluble antioxidant that plays a central role in immune function, collagen synthesis, and the neutralisation of free radicals. It also supports the absorption of non-haem iron, making it a useful companion for those managing low ferritin levels.
The powder format suits people who prefer to avoid capsules, need to adjust their dose incrementally, or want to add vitamin C to a broader morning routine — mixing it into water, juice, or a smoothie takes seconds. It is a practical option for those recovering from illness, under sustained physical or psychological stress (both of which deplete circulating ascorbic acid), or simply seeking a reliable daily top-up when dietary intake is inconsistent.
Thorne is a brand with a long-standing reputation for rigorous manufacturing standards and minimal excipients. This product contains a single active ingredient — ascorbic acid — with no fillers, binders, or flavourings listed, which makes it straightforward to use and easy to stack with other supplements without introducing unnecessary additives. For those whose requirements are confirmed by a blood panel, the dose can be titrated precisely, which a fixed-capsule format does not allow.
What it does
Benefits
- 01
Pure ascorbic acid for daily immune and antioxidant support
- 02
Flexible dosing to suit individual needs and tolerance
- 03
Supports collagen synthesis and connective tissue health
- 04
May enhance non-haem iron absorption when taken together
- 05
Single-ingredient formula with no unnecessary additives
Get the most from it
How to use
Mix a quarter teaspoon into water or juice and drink promptly. Taking it with food may reduce the chance of gastric discomfort, particularly at higher doses. Follow the dosage guidance on the packaging if you are adjusting the amount.
What's inside
Ingredients
View full ingredient list
Ascorbic Acid
Common questions
Frequently asked
How does powder compare to a vitamin C capsule?
The active ingredient — ascorbic acid — is the same. The powder simply allows you to adjust your dose more precisely and avoids the binders or fillers sometimes present in capsule forms. It also dissolves easily into any drink.
Can high doses of vitamin C cause any side effects?
Ascorbic acid is generally well tolerated, but doses above bowel tolerance can cause loose stools or gastric discomfort. Starting with a modest amount and increasing gradually helps identify your personal threshold. Those with a history of kidney stones should consult a doctor before supplementing at higher doses.
Is this suitable to take alongside an iron supplement?
Vitamin C is commonly taken alongside non-haem iron because ascorbic acid is studied for its role in improving iron absorption. Taking both at the same time is a reasonable approach, but check with your doctor if you are on a prescribed iron therapy.
How long until I notice a difference?
For general immune and antioxidant support, consistent daily intake over several weeks is typically recommended. If you are supplementing to address a confirmed deficiency, a follow-up blood test after 8–12 weeks is the most reliable way to assess change.
Who might not be suitable for this product?
People with a history of kidney stones, haemochromatosis, or glucose-6-phosphate dehydrogenase (G6PD) deficiency should seek medical advice before taking high-dose vitamin C. Check the packaging for allergen information and consult your GP if you are pregnant, breastfeeding, or on medication.
Doctor-guided care
Test before you supplement.
Bloods are the only way to know what your body actually needs. We'll tell you which of these supplements earn their place.
Book a panelFrom real customers
Reviews
No reviews yet
Be the first to share your experience.
Loading reviews…
