- Supplement with Vitamin C: This health support supplement provides powerful antioxidant activity from vitamin C for immune support*
- Antioxidant Support*: This formula combines the antioxidant support of vitamin C with citrus bioflavonoids and quercetin*
- Immune Function Support*: This immune health support supplement with citrus bioflavonoids is bottled and tested in the USA*
- Vegan Supplement for Men & Women: Integrative Therapeutics Vitamin C with Quercetin contains no wheat, gluten, soy, dairy, or artificial colors, or flavors
- About Integrative Therapeutics: For over 25 years, patients and clinicians have trusted us for our dedication to quality, potency, and accuracy; transparency around our sourcing and manufacturing processes is part of our quality promise to you

wwa –
Bought to help with hives
I read an article that suggested this product was good for combating hives. It has helped some. The Quercetin combined with Vitamin C is the key from what I’ve read.
Marcos –
Great product! It has been taking care of my …
Great product! It has been taking care of my allergies better than the OTC medicines.No side effect: no drowsiness, no sleepiness and no grogginess.Taking it 3 pills at the time for it work well.Very pleased with it.
Martha Dreyfus –
Good product
I have been using this brand of supplements and they are good.
Kelly Lynn –
If it weren’t helpful I wouldn’t purchase by subscription.
I use this product to boost my immunity. I use it with zinc.
Sadie1325 –
Excellent Product
Excellent product, I’ve used for years
Robin –
Product good but delivery was unacceptable
Delivery driver dropped off the package at the bottom of our walkway down by the garage instead of bringing it to the door. We could have easily missed it. Product is great!
Joshua August –
No Itch
Would give it a 5 ! But it wasn’t perfect ! But it was great every bit of great close too perfect ! For people who itch out the shower and need a good antihistamine ! These most definitely help !
Stingrayallday –
I love this Vitamin C!
I have histamine intolerance and this product has helped me tremendously!! It also helps me get a better night sleep and I suffer from insomnia and I believe this is helping!!! I put it on subscribe and save!