Buffered C Powder

Name: Buffered C Powder
Brand: Thorne
SKU: product-0455
Price: 25.00 GBP
Availability: InStock
Rating: 4.9 (36 reviews)

£25.00

Buffered formula is gentler on the digestive tract
Supports normal immune function year-round
Flexible dosing via measured powder format
Contributes to collagen synthesis and tissue repair
Suits those with ascorbic acid sensitivity

4.9 (36 reflections)

Subscribe & never run outDelivered monthly, skip, pause or cancel anytime£25.00One-time purchase£25.00

ThorneBuffered C Powder

Interested in more
personalised recommendations?

Set up your WA\ Profile to connect your wearables, biomarkers and test results. Create a bespoke plan based on your unique biology. Expert-led, evidence-based.

Set up Profile now

about this product.

Buffered C Powder by Thorne is a vitamin C supplement in powdered form, using a buffered version of ascorbic acid — meaning the acidity is partially neutralised, typically with mineral salts such as calcium, magnesium, or potassium ascorbate. This makes it considerably gentler on the gastrointestinal tract than standard ascorbic acid, which can cause discomfort at higher doses.

Vitamin C is one of the most studied micronutrients in human health. It contributes to normal immune function, collagen synthesis, and the protection of cells from oxidative stress. As a water-soluble vitamin, it is not stored in the body and must be obtained consistently through diet or supplementation.

The powder format suits people who find capsules difficult to swallow, those who want to titrate their intake with flexibility, or those who need higher doses — such as individuals recovering from illness, under significant physical stress, or with identified deficiency. It dissolves readily in water and can be added to any cold drink.

Thorne is a brand with a long-standing reputation in the practitioner supplement space, known for rigorous manufacturing standards and clean formulations. This product contains no unnecessary fillers, making it a straightforward choice for those who want vitamin C without additional ingredients. It is a particularly sensible option for anyone who has experienced digestive sensitivity with standard ascorbic acid in the past.

frequently asked.

Why is buffered vitamin C easier on the stomach than regular ascorbic acid?

Standard ascorbic acid is quite acidic, which can irritate the stomach lining or cause loose stools at higher doses. Buffering it with mineral salts raises the pH, making it significantly gentler — a meaningful difference for anyone taking more than a modest daily amount.

How long until I notice a difference?

Vitamin C works as part of your ongoing nutritional status rather than producing an acute effect you would notice quickly. Consistent daily intake over several weeks is the relevant timeframe for supporting immune resilience and tissue health.

Is this suitable for people with sensitive stomachs?

It is specifically formulated with that in mind. The buffered form is the standard recommendation for anyone who has experienced nausea, heartburn, or loose stools with regular ascorbic acid supplements.

Can I take this alongside other supplements?

Vitamin C is generally well-tolerated alongside most common supplements and may actually enhance the absorption of non-haem iron. If you are on any prescribed medication, check with your GP or pharmacist before adding any new supplement.

Who might need more than the standard dietary reference intake of vitamin C?

Smokers, people under chronic stress, those recovering from illness or surgery, and individuals with limited fruit and vegetable intake are among those who may have higher requirements. A blood test can help clarify whether your levels are adequate.

Customer reflections

Overall sentiment

4.936 reflections

1 – 6 of 36 reflections

QQVerified Buyer

The first adrenal support that made a quick difference.

4 days ago

Gentle on a sensitive stomach, and I feel like myself again. I had tried two other glandulars before this and neither sat right.

MRVerified Buyer

Steadier mornings within a fortnight.

1 week ago

I was sceptical about glandulars, but my mid-afternoon crash has genuinely eased. One capsule with breakfast and I forget about it.

ALVerified Buyer

Subtle, but real.

2 weeks ago

Not a stimulant, which is exactly what I wanted. It took about ten days, then I realised I wasn’t dreading the afternoon any more.

SKVerified Buyer

My clinician recommended it.

3 weeks ago

Bought after a blood panel flagged a flat cortisol curve. Easy to take, no jitters, and the sourcing is refreshingly transparent.

TPVerified Buyer

Recovery feels faster.

1 month ago

Training hard through a stressful stretch and this has helped me bounce back between sessions. Already on my second bottle.

DVVerified Buyer

Does what it says.

1 month ago

No frills, one ingredient, a sensible dose. I appreciate that it is designed to be used for a season rather than forever.

Buffered C Powder

about this product.

how to take it

frequently asked.

you may also like

AEKE B1 Fitness Bench

AEKE K1 AI-Powered Smart Home Gym

Dryft Sleep Mouth Tape Sleep Strips

Frenz Brainband Sleep Wearable

Finding your calm in a stressful environment

Customer reflections