in the world of vitamin c’s only ester-c® lasts up to 24 hours*

Clinical studies show Ester-C® can increase vitamin C levels in white blood cells, an essential part of the immune system. The result? Ester-C® stays in your immune system up to 2x longer than regular vitamin C.

What’s more, unlike regular vitamin C that you have to take multiple times for all-day support… you only have to take Ester-C® once-a-day.

gentle on your stomach*

Ester-C® tablets and capsules are formulated to be non-acidic, meaning that it has a neutral pH. In a recent clinical trial, people who are generally sensitive to acidic foods were given either Ester-C® or regular vitamin C. Not surprisingly, the study showed that Ester-C® is gentler on the stomach than regular Vitamin C.

the name you can trust.

Trust Ester-C® to constantly bring you products that have vegan and vegetarian options, are free of common allergens, such as gluten, soy, and dairy,… are non-GMO whenever possible… and, have consistently high performance.

dairy free

vegetarian & vegan options

gluten free

soy free

we’ve got your immune health covered.

Whether you take our capsules, tablets, chewable wafers, liquids or delicious effervescent powder packets… nothing else works like Ester-C®.

what
people
are
saying

Love this Ester-C!

Love this Ester-C! Have used for many years! Very easy on the stomach!

Annette

about Ester-C with Citrus Bioflavonoids Capsules

Love this Ester-C! 2

Love this Ester-C! Have used for many years! Very easy on the stomach!

Annette

about Ester-C with Citrus Bioflavonoids Capsules

Love this Ester-C! 3

Love this Ester-C! Have used for many years! Very easy on the stomach!

Annette

about Ester-C with Citrus Bioflavonoids Capsules