Klaire Labs SFI Health C Plus with Bioflavonoids – Optimal Vitamin C Blend with Citrus Bioflavonoid Complex (90 Capsules)

Looking for a high-potency vitamin C supplement that supports your immune system and overall wellbeing? Klaire Labs C Plus with Bioflavonoids delivers a robust 1,730 mg of vitamin C per serve, combining two complementary forms with citrus bioflavonoids for enhanced absorption. Trusted by healthcare professionals since 1969, this formula is designed to provide comprehensive antioxidant support.

Key Benefits of Vitamin C

Vitamin C plays a crucial role in keeping your immune system in top shape. It helps white blood cells do their job, acts as a powerful antioxidant to combat oxidative stress, and is essential for collagen production—great for your skin, joints, and connective tissues. It also boosts iron absorption from plant foods. The citrus bioflavonoid complex in this formula works together with vitamin C to improve stability and absorption.

What Makes This Vitamin C Formula Unique?

Many vitamin C supplements rely on just ascorbic acid, which can be harsh on the stomach. Klaire Labs C Plus combines ascorbic acid with ascorbyl palmitate—a fat-soluble form that may help with cellular uptake. The added citrus bioflavonoids, standardised to 50% hesperidin, support the body's ability to use vitamin C effectively. This blend offers a well-rounded antioxidant approach.

Types of Vitamin C Supplements

Vitamin C supplements come in several forms: ascorbic acid (the most common), sodium ascorbate (gentle on the stomach), ascorbyl palmitate (fat-soluble), and wholefood sources like acerola. Liposomal vitamin C is also popular for better absorption. Klaire Labs uses a dual-form approach—both water- and fat-soluble—to potentially improve tissue saturation. The addition of citrus bioflavonoids further supports absorption and stability.

How to Choose the Best Vitamin C Supplement

When picking a vitamin C supplement, think about dosage, form, and extra ingredients. Higher doses (1,000 mg or more) are common for immune support, but tolerance varies. If you have a sensitive stomach, look for buffered forms like sodium ascorbate or a blend with bioflavonoids. Certifications like Non-GM, vegan, and allergen-free offer peace of mind. Klaire Labs products are free from common allergens including milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soy, and yeast. They contain no artificial colors, flavours, or preservatives.

What Is Vitamin C and Why Do You Need It?

Vitamin C (ascorbic acid) is an essential water-soluble nutrient your body cannot produce on its own. It's vital for immune defence, collagen synthesis, and antioxidant protection. Because the body doesn't store much vitamin C, regular daily intake through diet or supplements helps maintain optimal levels. Klaire Labs C Plus with Bioflavonoids provides a potent 1,730 mg of vitamin C per serve, combining two complementary forms for maximum bioavailability.

Recommended Dosage and Safety

The recommended serve is 2 vegetarian capsules daily, giving you 1,730 mg of vitamin C. Each bottle has 90 capsules, a 45-day supply at the suggested serve. Vitamin C is generally safe at recommended doses; however, very high intakes (above 2,000 mg daily) may cause gastrointestinal discomfort for some. If you're pregnant, nursing, or taking medication, consult your healthcare provider before starting any new supplement. Always read the label and follow directions for use. This product is not intended to diagnose, treat, or prevent any disease.

Frequently Asked Questions

Can I take this vitamin C on an empty stomach? Ascorbic acid can be acidic, so taking it with food may reduce potential stomach upset. The bioflavonoids may help buffer the acidity.

Why include ascorbyl palmitate? Ascorbyl palmitate is a fat-soluble form that can be incorporated into cell membranes, potentially offering longer-lasting antioxidant protection.

How long does one bottle last? At the recommended serve of 2 capsules per day, a 90-capsule bottle provides 45 serves.

Is this product suitable for vegans? The capsules are vegetarian, but check with the manufacturer for vegan certification details.