Last update
5/16/2026

Overview

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 25 Reviews
7.8
Supplement Facts
Serving Size:  2 Capsules
Amount Per Serving
%DV
Vitamin C(as Ester-C® Calcium Ascorbate)
1,000 mg (1 g)
1,111%
Calcium(as Ester-C® Calcium Ascorbate)
110 mg
8%
Citrus Bioflavonoids ComplexCitrus Bioflavonoids (Citrus limon) (fruit), Sweet Orange,Tangerine, Lime, Lemon, Acerola, Rutin, Hesperidin Complex(Citrus spp.) (fruit), Naturally Occurring Vitamin C Metabolites
400 mg
**
📅 Last updated:

Most Useful Reviews

7
Reduced sneezing
2 people found this helpful
Very effective for treating allergies. My child sneezes less frequently upon waking after consuming this product.
Read More
9
Allergy improvement
1 people found this helpful
I tried Ester-C with citrus bioflavonoids and experienced remarkable changes. For years, I struggled with non-healing skin inflammations, but within a week, all the wounds and bites healed, and acne ceased to appear. After turning 28, my skin had lost its elasticity and became drier despite a healthy diet. However, taking this product has resulted in less swelling in my veins, reduced fatigue in my eyes, and even eliminated the dryness of my mucous membranes. Importantly, my allergy to citrus fruits has vanished; I can now enjoy them without any adverse effects, which is quite astonishing.
Read More
7
Breathing improvement
1 people found this helpful
A biological formula! Gentle on the stomach, excellent for overall health, particularly for blood vessels, combating allergies, and improving breathing for asthma sufferers.
Read More

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User Reviews

USERS' SCORE
Moderately Good
Based on 25 Reviews
7.8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
7
Reduced sneezing
2 people found this helpful
Very effective for treating allergies. My child sneezes less frequently upon waking after consuming this product.
Read More
9
Allergy improvement
1 people found this helpful
I tried Ester-C with citrus bioflavonoids and experienced remarkable changes. For years, I struggled with non-healing skin inflammations, but within a week, all the wounds and bites healed, and acne ceased to appear. After turning 28, my skin had lost its elasticity and became drier despite a healthy diet. However, taking this product has resulted in less swelling in my veins, reduced fatigue in my eyes, and even eliminated the dryness of my mucous membranes. Importantly, my allergy to citrus fruits has vanished; I can now enjoy them without any adverse effects, which is quite astonishing.
Read More
7
Breathing improvement
1 people found this helpful
A biological formula! Gentle on the stomach, excellent for overall health, particularly for blood vessels, combating allergies, and improving breathing for asthma sufferers.
Read More
9
Quick recovery
The effect is very good. With quercetin, common cold Allergies can be cured quickly.
Read More
9
No more sneezing
This product has greatly helped my allergies. I no longer sneeze or have a runny nose since I started taking it! I take it daily, three times a day.
Read More

Frequently Asked Questions

8
Treating allergies
My nose allergies have improved significantly, and my immunity has noticeably increased, particularly through seasonal changes. I no longer need to visit the doctor.
7
Reduced sneezing
2 people found this helpful
Very effective for treating allergies. My child sneezes less frequently upon waking after consuming this product.
9
Allergy improvement
1 people found this helpful
I tried Ester-C with citrus bioflavonoids and experienced remarkable changes. For years, I struggled with non-healing skin inflammations, but within a week, all the wounds and bites healed, and acne ceased to appear. After turning 28, my skin had lost its elasticity and became drier despite a healthy diet. However, taking this product has resulted in less swelling in my veins, reduced fatigue in my eyes, and even eliminated the dryness of my mucous membranes. Importantly, my allergy to citrus fruits has vanished; I can now enjoy them without any adverse effects, which is quite astonishing.
8
Effective allergy support
I take 500 mg of Vitamin C daily or two capsules during allergy season and when I'm exposed to sick colleagues. Although I usually take liposomal Vitamin C, these are a reliable alternative. They aid in supporting my immune system after long workouts and distance running.
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