Best Calcium Vitamin C Supplements of 2025

NOW C-500 Calcium Ascorbate is a high-quality vitamin C supplement that provides antioxidant protection for your body. It contains calcium ascorbate, a buffered form of vitamin C that is bioavailable and non-acidic. This supplement is enhanced with bioflavonoids, which work synergistically with vitamin C to support your overall health. Vitamin C is essential for the production of collagen, making it important for skin, bone, and joint health. With NOW C-500 Calcium, you can conveniently get your daily dose of vitamin C to support your immune system and promote healthy aging. This product is certified GMP Assured, non-GMO, and soy-free, ensuring its quality and safety. NOW C-500 Calcium is proudly packaged in the USA by a family-owned and operated company with over 50 years of experience.

Allergy Research Group - Buffered Vitamin C is a high-purity ascorbic acid buffered with carbonates of calcium and magnesium, which is non-acidic. It supports collagen synthesis, balanced mood, stress resilience, and many immune system functions. The suggested use is taking 2 capsules daily between meals, or as directed by a healthcare practitioner. It is free of wheat and gluten, dairy, eggs, soy, fish, shellfish, peanuts, tree nuts, and yeast. Since 1979, Allergy Research Group has been committed to using pure and low allergy potential ingredients.

INNERVISNUTRITION Vitamin C offers a non-acidic formula that is gentle on your stomach, making it ideal for those who experience discomfort with traditional Vitamin C supplements. This product combines Vitamin C with calcium, providing antioxidant benefits while supporting bone health. Manufactured in the USA, it ensures high quality and purity, with no fillers or artificial ingredients. With its small, easy-to-swallow capsules, you can conveniently boost your immune system and overall health without the worry of gastric distress.

Solgar Ester-C Vitamin C offers a unique blend that enhances the retention of Vitamin C in your cells, making it an excellent choice for antioxidant and immune support. Its gentle, non-acidic formula is perfect for those with sensitive stomachs, ensuring easy digestion and absorption. Additionally, this supplement contributes to collagen formation, promoting healthy skin and cartilage. With added benefits like increased iron absorption, you can feel confident that you're supporting your overall health with every capsule.

Pure Ester-C Capsules by Pure Encapsulations offer superior absorption of vitamin C for immune support, acting as a potent antioxidants supplement. The inclusion of bioflavonoids quercetin and rutin aids in supporting your immune system and antioxidant defenses. Ester C also promotes a healthy immune system and cell function, essential for your immune and antioxidants supplement routine. With suggested easy use of 1-2 capsules daily, this product is gentle on digestion and free from common allergens, artificial ingredients, and GMOs.

Solgar Ester-C Plus 1000 mg Vitamin C Tablets are unique and well-retained, featuring natural bioflavonoids, acerola berry, and rose hips fruit powder. This special manufacturing process creates a less acidic, pH-neutral Vitamin C for sensitive stomachs, easy to digest and highly absorbable. With immune system support, collagen formation for healthy skin, and iron absorption, the non-GMO, vegan, kosher, halal, and gluten-free formula makes it accessible to a wider range of users. Solgar has been committed to quality for over 70 years.

Life Extension Vitamin C 24-Hour Liposomal Hydrogel Formula is a liposomal vitamin C supplement that supports immune health and skin health. The formula uses a fenugreek hydrogel to protect vitamin C, allowing for better absorption and 24-hour benefits. Vitamin C helps encourage a healthy immune response, supports breathing quality after exercise, and maintains healthy breathing during a respiratory challenge. It also provides antioxidant skin protection. The product is sourced using the finest raw ingredients, certified non-GMO and gluten-free, and manufactured in the USA.

NOW Foods Vitamin C offers significant antioxidant support, helping you maintain healthy tissues by combating free radicals that can arise from everyday activities and environmental factors. This supplement features a buffered form of vitamin C, which is gentle on your stomach and highly absorbable. Additionally, it includes 250 mg of bioflavonoids, enhancing the effectiveness of vitamin C for better overall health. With certifications ensuring it's free from common allergens and non-GMO, this product provides peace of mind for those with dietary restrictions.

Thorne Buffered C Powder is an easy-to-take, immune-boosting vitamin C supplement that is gentle on the stomach. It helps maintain healthy bones and connective tissue, making it a great choice for individuals with a sensitive or compromised digestive system. This product is free from gluten, soy, dairy, and major allergens.

Buffered Vitamin C by Nutricology is a high-purity ascorbic acid supplement that is buffered with carbonates of calcium and magnesium, making it non-acidic. This supplement supports various functions in the body, including collagen synthesis, stress resilience, and immune system functions. Taking 2 capsules daily between meals, as suggested by a healthcare practitioner, can provide you with these benefits. The product is also free of common allergens such as wheat, gluten, dairy, eggs, soy, fish, shellfish, peanuts, and tree nuts. Nutricology has been committed to using only the purest raw materials since 1979, with strict quality control. Improve your overall health and well-being with Buffered Vitamin C.