Buffered Vitamin C Powder helps immune health and antioxidant protection by delivering high potency vitamin C in a gentle, buffered form that minimises tummy upset.

Available Sizes & Variants:

198.5 g flavoured powder - convenient size for daily supplementation with a pleasant passion fruit flavour.

Benefits & Features:

• Gentle on the stomach, even at high doses.
• Buffered ascorbates reduce acidity, helping you take vitamin C daily.
• High potency vitamin C supports antioxidant defenses and immune function, while the passion fruit flavour makes daily intake pleasant, so maintaining consistent supplementation is easier.
• Ultra tested for contaminants ensures safety and purity.
• Supports collagen production for healthier skin and nails, fitting naturally into skincare routines.

Kirkman Labs' Bio-Max line champions clinically proven forms for better absorption, and this Buffered Vitamin C Powder is Ultra Tested for over 950 contaminants, a sign of quality control. The flavoured version uses natural passion fruit flavour with a touch of stevia leaf extract, making it easy to enjoy daily. Vitamin C supports collagen production and antioxidant defenses, aligning with skincare and overall wellbeing. It also fits alongside vitamins for hair and nails and skin in a simple daily routine, pairing well with lip balm for dry lips.

Sodium Ascorbate, Ascorbic Acid, Natural Passion Fruit Flavour, Stevia Leaf Extract, Magnesium Ascorbate, Potassium Ascorbate.

• GTIN: 812325021499
• Manufacturer: Kirkman Laboratories
• Categories: Back to School Supplements & EssentialsHealth Supplements for Frequent TravelersImmunity SupplementsKirkmanNew ArrivalsPopular Supplement BrandsVitamin CVitamin C Skincare
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1/4 teaspoon of the powder one to three times daily, or as your healthcare practitioner advises. Shake lightly before each use. On an empty stomach or between meals\, take 4 ml (about 3/4 tsp) by mouth. May also mix in 1 oz. of water or juice (juice may be preferred due to the potent taste of glutathione). Use as directed by your healthcare professional.
Do not take within 3 hours of bedtime.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Vitamin C (Ascorbic Acid)

Vitamin C, also called ascorbic acid, is a water-soluble nutrient essential for everyday bodily functions. The product uses a buffered form of ascorbates to reduce stomach acidity and make it gentler on the stomach.

This blend combines sodium, potassium and magnesium ascorbates with ascorbic acid to support smooth delivery and high bioavailability.

What Does Vitamin C Do?

Vitamin C plays a part in normal immune system function and acts as an antioxidant to help shield cells from oxidative stress. It also helps with collagen formation, in line with EFSA guidance on nutrient function.

The buffered formula helps minimise stomach upset while delivering high-potency vitamin C for normal bodily roles.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Kirkman Labs stands out for its unwavering commitment to quality, which makes it our chosen partner for this Buffered Vitamin C Powder. This brand’s long-standing reputation in the industry is anchored in a science-led approach to nutrient forms and delivery, positioning Kirkman Labs ahead of many competitors when it comes to trusted formulation philosophy. The manufacturer is known for its focus on high absorption and bioavailability through its Bio-Max series, reflecting a heritage centred on clinically informed nutrient design.

The midline differentiator for Kirkman Labs is its rigorous testing and safety standards. The product is described as Ultra Tested for contaminants, demonstrating a robust quality control framework that aligns with the standards we require the certifications we require. This emphasis on purity and consistency underpins our confidence in providing a safe, dependable supplement to our customers. Our evaluation of Kirkman Labs also considered allergen and gluten-free attributes, reinforcing the brand’s suitability for broad consumer need.

This brand vs alternatives highlights a clear advantage: Kirkman Labs combines a proven heritage with stringent lab testing and clear manufacturing ethics, which led to our selection decision. For our team’s assessment and confirmation from our medical experts, see our team of medical experts.