American Health Ester-C with Citrus Bioflavonoids

Vitamin C is crucial for overall health, particularly in instances of disease. I take doses of around 1000mg daily and increase to 4000-5000mg at the first sign of a cold without concern for kidney stones. It reduces the impact of toxins from exhaust, pesticides, and radiation. This vitamin also acts as an effective antihistamine. I keep it in my medicine cabinet for illness and use Sodium Ascorbate daily.

Effective for indigestion

Indigestion details

A fantastic product that my wife and I use is vitamin C. She previously had issues as it caused indigestion, but with the ester form, she no longer experiences that. I highly recommend this product.

Irritable Bowel Syndrome details

Treatment compatibility

For my chronic cystitis and irritable bowel syndrome, this vitamin C is a fantastic find. I must adhere to a strict diet that prohibits sour foods, including cranberries. This vitamin allows me to take it without worsening my conditions.

Knee Pain details

Improved knee comfort

The best remedy! Throughout quarantine, my family took two to three capsules daily, and thankfully, none fell ill. Seasonal colds also avoided us. I encourage anyone who wants to bolster their immune system during this tough time to try Ester year-round! After taking vitamin C, my knee pain diminished, and sleep improved. The vitamin helped with collagen absorption, making my joints more comfortable. Previously, my feet were always cold, but that changed after using this drug. Overall, a fantastic product!

1 people found this helpful

Sinusitis details

The packaging is excellent and prevents leaks. This vitamin has helped my son's immune function, especially when he has a cold. The portions are generous, and the ingredients are healthy with a pleasant taste. After struggling with sinusitis and trying various treatments, I purchased this product on a friend's recommendation. Within two days of taking it, my sinusitis remarkably improved, which was truly surprising. I would definitely recommend it to others.

Acne Rosacea details

Effective for rosacea

This is the best vitamin C I have tried, tested repeatedly! It effectively treats acne rosacea and colds. The form of vitamin C is easily absorbed, plus it contains a sufficient amount of bioflavonoids, enhancing absorption and strengthening blood vessel walls.

Vitamin C is crucial for strengthening the immune system, protecting against viruses and bacteria, and accelerating wound healing. It has been a lifesaver for my family during the coronavirus period. We take it daily and I highly recommend it.

Bacterial Infection details

Vitamin C is essential for immunity, especially during the respiratory illness season. When combined with iron, it’s well absorbed. Since I started taking it, I’ve felt much better and haven't experienced dizziness.

Dizziness details

Ear Infection details

After an autumn walk, I felt weak and stuffy, but these capsules proved effective overnight, alleviating my symptoms. I found it suitable for my daughter too, and both of us recovered quickly, something that usually takes weeks. It’s a must-have in every household, and I highly recommend it!

Rash details

Decreased facial rashes

The clean composition of this supplement is impressive, and the capsules are easy to swallow. After using it for only 2 weeks to combat insulin resistance, I feel more energetic and less tempted to snack, with a noticeable decline in my sweet cravings. The rashes on my face have diminished, and I’m able to manage stress better. The overall result is evident, and I’m optimistic about improving my metabolism with this supplement. I appreciate the swift delivery, high quality, and natural ingredients.

Cold prevention confirmed

Adenoiditis details

1 people found this helpful

Vitamin C Number One For My Family! This excellent vitamin shows no negative effects on my stomach. I take it and give it to my family at the first sign of a cold; typically one or two capsules help prevent the cold from developing. It's also helpful during gum issues, like bleeding or early signs of periodontitis.

Attention Deficit Hyperactivity Disorder details

Non-aggressive formula

This luxurious vitamin C, combined with bioflavonoids, is ideal for long-term use. I find it the best option in terms of price and quality on Iherb. It is gentle on the stomach unlike some other vitamin C supplements. I recover from colds more quickly when combined with vitamin D and zinc.

Supports cancer treatment

Cancer details

Excellent! Ester-C is the correct form of Vitamin C. It is non-acidic and contains flavonoids, making it suitable for all, especially pregnant women, lactating mothers, cancer patients, and smokers. I recommend it without exception.

4 people found this helpful

Chronic Cough details

An excellent vitamin for those knowledgeable about it. I recommend a dosage of 5 grams during the onset of snot, cough, or sore throat. It typically resolves issues within three days. Take 2-3 times a day, depending on weight—three times if over 80 kg. I endorse this product and assure you of its quality and effectiveness.

24 people found this helpful

Cold Sores details

Salvation during the cold season! I chose this vitamin C based on reviews, using it for rapid recovery during colds and for better iron absorption. The capsules are small and easy to swallow. If I notice any symptoms, I take two immediately. It significantly aids in preventing sickness and is gentle on the stomach due to the Ester-C technology. I will definitely order again.

This is the best vitamin C. My leg cramps have diminished, and the bruises on my legs have disappeared.

Leg Cramps details

6 people found this helpful

Pelvic Pain details

This vitamin C is perfect! I take 1 capsule for immunity and 2 during a cold. It works ideally without any stomach issues, especially for my skin prone to rosacea.

Rosacea details

Bone Pain details

This Ester-C from American Health suits me well, as I’ve experienced no stomach discomfort after taking it. I usually consume it in the morning to support energy during stressful days. I pair it with a proper meal to ensure digestion goes well. It also helps improve my mood and offers some relief from bone pain, making it beneficial for elderly users like myself.

7 people found this helpful

Chronic Fatigue Syndrome details

Vitamin C has an excellent formulation and is easy to digest. I take one capsule twice daily when I feel unwell. For prevention, one capsule is sufficient. Recovery is quicker, and sometimes with early symptoms, the right dosage can completely avert illness. It effectively boosts the immune system without irritating the stomach, which is crucial. I'm reordering after initially trying 60 capsules. Highly recommended!

Ester C may reduce cold frequency

Common Cold details

Van Straten M, Josling P. Preventing the common cold with a vitamin C supplement: a double-blind, placebo-controlled survey. Adv Ther. 2002;19:151.

We conducted a study involving 168 volunteers who were given either a placebo or a vitamin C supplement for 60 days during the cold season. Participants recorded their cold symptoms in a diary, and those on the vitamin C showed promising results.

The groups taking the active treatment reported significantly fewer colds and experienced fewer days of viral illness. Additionally, their severe symptoms lasted less time than those in the placebo group. Most volunteers experienced few side effects and enjoyed using the supplement, finding it more effective than prior vitamin C forms.

Overall, this vitamin C supplement could help prevent colds and ease symptoms, offering hope for better winter health.

Effective treatment

Most Useful Review

600 people found this helpful

When I start to feel unwell with a common cold, I follow nutritionist Katie Young's regimen: Ester C (500mg) four times daily, Zinc picolinate (50mg), and a probiotic (50 billion). This unusual method works remarkably well, helping us feel better in just two days. Vitamin C boosts immunity, Zinc replenishes what we lose during illness, and the Probiotic creates a protective barrier in the digestive tract. We have tested this scheme with the entire family, and I highly recommend it.

Updated: Apr 2025

Constipation details

Relieves constipation

Good! It worked on rough skin, tiredness, and constipation. The time release is very effective. I will also purchase it again.

Acne details

Improved skin condition

I take these capsules in the morning for 30 minutes before meals, dissolving the powder in water. My skin has improved, although hormonal acne remains. My stomach feels fine, and I plan to continue this indefinitely.

Adrenal Gland Disorder details

Immune system strength

Excellent vitamin C! It’s an indispensable supplement for strengthening my immune system and supporting the function of my adrenal glands.

Anemia details

Enhanced recovery noted

10 people found this helpful

Salvation from numerous issues! We often faced a “sick family” situation; when one fell ill, everyone was affected, especially during the damp, cold months. Antivirals, cycloferon injections, and various treatments were part of our recovery approach. However, I’ve now shifted my perspective to strengthening immunity. Vitamin C is vital, but one must avoid excessive glucose intake. Although we rely on fruits and vegetables for vitamin C, we often overlook the stress factor, which depletes our vitamins, including Bs and C. I initially purchased this vitamin C with bioflavonoids for my husband, who suffered from frequent illness and poor rest. After careful research, I settled on a 500-unit dosage, ensuring it was not taken on an empty stomach. Following advice from a hematologist regarding my iron deficiency anaemia, I was prescribed 10 droppers of ascorbic acid. The results were remarkable: improved iron absorption, brighter complexion, and increased energy. Regular, careful intake of vitamin C yields excellent results, as does the specific regimen prescribed. I highly recommend this vitamin C.

A must-have in the medicine cabinet for the entire family! We regularly take vitamin C, noting its benefits. When I feel a cold coming on and take 1000 mg several times a day, I feel revitalised the next day. My husband has had issues with hemorrhoids in the past, but since starting vitamin C, he's been well for a while. It also helped my mother with her bleeding gums. Highly recommend, and I will repurchase!

Hemorrhoids details

25 people found this helpful

Skin Cancer details

This Vitamin C with bioflavonoids amplifies the beneficial effects. I combine it with collagen and take it regularly during colds. It enhances the production of white blood cells and helps combat viruses. It's essential for immunity and general health.

I'll take more of this wonderful drug. It's particularly effective for a swift recovery at the onset of a cold, cough, or temperature.

Whooping Cough details

Blood Clot details

Decreased varicose veins

4 people found this helpful

I've been taking this excellent Vitamin C for three months, and I've noticed significant improvements in my blood vessels. Varicose veins in my legs have reduced, leaving me pleasantly surprised. I highly recommend it.

Vitamin C reduces cold incidences

Cold details

SCIENTIFIC SCORE

Moderately Effective

Based on 2 Researches

Van Straten M, Josling P. Preventing the common cold with a vitamin C supplement: a double-blind, placebo-controlled survey. Adv Ther. 2002;19:151.

We investigated whether a daily vitamin C supplement could reduce the risk of catching colds. Over two months, 168 people took either the supplement or a placebo. Results showed that those taking vitamin C experienced significantly fewer colds and shorter durations of severe symptoms compared to the placebo group.

This supplement was well-tolerated with minimal side effects, and participants were notably satisfied with it. Overall, it seems that vitamin C may not only help prevent colds but also assist in faster recovery from them.

Convenient vitamin C

Most Useful Review

211 people found this helpful

The order arrived very swiftly, just within 7 days. I appreciate Buds' packaging, with protective membranes that reassure me. I needed a gentle vitamin C on my stomach. It's essential, especially during cold seasons. I bought a large jar, which is very convenient, and offers a good shelf life. When I feel a cold coming on or notice early signs of malaise, I increase my dose accordingly. Health to all! Consult your doctor before use.

Updated: Mar 2026

Ulcer details

1 people found this helpful

This vitamin is excellent! It suits my sensitive husband with a duodenal ulcer. I take it with iron, which has improved my levels. It’s effective when combined with zinc and vitamin D during cold seasons.

Allergies details

Very effective for treating allergies. My child sneezes less frequently upon waking after consuming this product.

Benign Tumor details

Improved skin texture

21 people found this helpful

Repurchase! Esther C is an invaluable vitamin C which isn’t sour and has no accumulation risk in the kidneys. It's a powerful antioxidant that supports vessels, amino acids, iron absorption, and the immune system. Working twice as effectively and lasting longer, I noticed a brighter complexion, increased energy, and smoother skin without any unpleasant side effects. I recommend drinking at least 2 litres of water daily. Reorder!

Updated: Mar 2026

Cardiovascular Disease details

I chose this water-based vitamin C for its lack of sour taste and it has proven effective during our family's COVID illness, leading to milder symptoms and quick recovery. We took doses of one capsule daily for children and two for adults.

56 people found this helpful

Flu details

This Ester-C with bioflavonoids is excellent for flu and viral diseases. In challenging times, maintaining health is crucial. I highly recommend this product as it supports immunity effectively.