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Ester-C® Bio

Klaire Labs



Ester-C® Bio product image

Ester-C® Bio is a synergistic combination of a non-acidic form of vitamin C and several different types of bioflavonoids. These nutrients work together to support capillary strength, connective tissue structure, and immune function, making this formula a good choice for those who wish to obtain the protective benefits of these antioxidants for the skin, joints, heart, and immune system.† Ester-C® Bio can be taken by anyone who wishes to increase their intake of vitamin C and plant-derived bioflavonoid antioxidants to support capillary and connective tissue functions.†

Suggested Use:

Take 1 capsule, 1 to 2 times daily with food or as directed by a healthcare professional.



Serving Size: 1 Capsule


Amount Per Serving

Vitamin C Ester-C®‡ … 540 mg

(as calcium L-ascorbate)

Calcium Ester-C®‡ … 60 mg

(as calcium L-ascorbate)

Citrus Bioflavonoid Complex … 50 mg*

(Citrus aurantium)(peel and fruit)

Rutin … 75 mg*

(sophora japonica)(Japanese pagoda tree bud extract)       

French Maritime Pine Extract Pycnogenol®‡‡ … 3 mg*

(Pinus pinaster)(bark)


Other Ingredients: Vegetarian capsule (hydroxypropyl methylcellulose, water), stearic acid, microcrystalline cellulose, and silicon dioxide.



Free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.


‡Ester-C® are registered trademarks of the Ester C® Comapny.

‡‡Pycnogenol® is a registered trademark of Horphag Research Ltd. Use of this product is protected by one or more U.S. patents and other international patents.


If you are pregnant, nursing, have a medical condition, or taking prescription drugs, consult your physician before using this product. KEEP OUT OF REACH OF CHILDREN.

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