NSI Ratings and Reviews

Shop Now At NSI
Shop Vitamin C or
Choose a Category
Top Rated Product

Product Reviews

NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules

A Superior Vitamin C Complex for a better value! Advan-C® provides beneficial amounts of vitamin C in a non-acidic form that is gentle to the digestive system and more highly absorbable than common vitamin C. What is NSI Advan-C® with Quercetin & Citrus Bioflavonoids? A synergistically formulated combination that includes a gentle form of Vitamin C with citrus bioflavonoids and Quercetin. NSI® Advan-C® is an acid-neutralized form of vitamin C meaning that it is non-irritating to your digestive system. Contains Quercetin and bioflavonoids for added antioxidant properties.  Why choose NSI Advan-C® with Quercetin & Citrus Bioflavonoids? Helps to maintain healthy blood pressure already within the normal range.*. Maintains a healthy cardiovascular system.*. Promotes the maintenance of healthy DNA.*. Maintains a healthy bladder wall.*. Promotes a healthy colon.*. About NSI®. All Nutraceutical Sciences Institute products are laboratory tested to meet FDAstandards for identity purity and composition. All products are tested for heavy metals microbiology and contaminants which may be present. Every batch is laboratory tested to guarantee freshness and purity levels. All products manufactured at Nutraceutical Sciences Institute are produced in an NSF Certified facility.  .  .  . * These statements have not been evaluated by the Food and Drug Administration.  This product is not intended to diagnose treat cure or prevent any disease.
Average Customer Rating:
4.701 out of 5
4.7
 out of 
5
(134 Reviews)
Open Ratings Snapshot
Rating Snapshot (134 reviews)
5 stars
107
4 stars
18
3 stars
6
2 stars
2
1 star
1
129 of 134(96%)customers would recommend this product to a friend.
Customer Reviews for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Review 1 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
2 out of 5
2 out of 5
Disappointment
August 24, 2010
By Astor
Value:
1 out of 5
1 out of 5
Quality:
4 out of 5
4 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
1 out of 5
1 out of 5
"It was not clear to me that you have to take TWO capsules to get the 1000 milligrams of this product. So, it is annoying and also not such a good deal financially."
Review 2 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
Does Not Upset Stomach
July 10, 2010
By Tsjitske
from California
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"I have a very sensitive stomach, but this product did not upset it."
Age: 35-44
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: 30-60 days
Review 3 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
*AAA Choice for a Vitamin C Supplement
June 19, 2010
By SunnyBrook65
from Phoenix, AZ
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"This has proven to be an excellent choice for a high potency vitamin C supplement containing both quercitin and bioflavinoids for great synergistic action. The big surprise was that it didn't cause any discomfort to my digestive tract. I've always had to be careful with high potency vitamin C, but this one has caused no problems. I would highly recommend this to anyone looking for a good vitamin C supplement."
Age: 55-64
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Less than 30 days
Review 4 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
May 26, 2010
By liliboom
from France
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"Le meilleur supplement en vitamine C que j'ai trouve."
Age: 25-34
Gender: Male
Daily supplement usage: 6+ supplements daily
Reason for usage: Enhanced performance
Duration of use: Over 180 days
Review 5 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
Great C
May 12, 2010
By Anonymous
from Birmingham, AL
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"My husband & I never have a problem with upset stomach with this C. We appreciate the querticin addition also."
Age: 45-54
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
Review 6 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
I love this product
May 10, 2010
By tucsondame
from Tucson, AZ
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"I have to take a lot of C, and this product is the easiest to absorb and to tolerate. I highly recommend it. And your service is extraordinarily prompt and accurate."
Age: 65-74
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Other
Reason for usage: Specific health concern
Duration of use: Over 180 days
Review 7 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
4 out of 5
4 out of 5
good product
April 16, 2010
By sorry
Value:
3 out of 5
3 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"completely satisfied with this product. exactly what I expected."
Review 8 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
BEST C AROUND
April 14, 2010
By theshopper
from Florida
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"GREAT PRODUCT"
Age: 55-64
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: 30-60 days
Review 9 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
A must have
April 4, 2010
By Semoa
from Florida
"No better C, no better price!"
Age: 65-74
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: 30-60 days
Review 10 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
3 out of 5
3 out of 5
beware
April 1, 2010
By Anonymous
from Albuquerque, NM
Value:
2 out of 5
2 out of 5
Quality:
3 out of 5
3 out of 5
Effectiveness:
3 out of 5
3 out of 5
Satisfaction:
2 out of 5
2 out of 5
"This is NOT 1000 mg vit C per capsule. It is 180 capsules with 500 mg of vit C per capsule. I was taking half as much C as I thought I was until I noticed the 1000 mg per serving BS on the label."
Age: 45-54
Gender: Male
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: 30-60 days
Review 11 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
Good stuff!
March 27, 2010
By theologian
from Mississippi
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"Best Vit C out there. Can't beat the price and/or quality. Get the ester Vit plus the bioflavanoids!"
Age: 35-44
Gender: Male
Daily supplement usage: 3-5 supplements daily
Referral source: Other
Duration of use: 30-60 days
Review 12 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
3 out of 5
3 out of 5
Hmmmm...Not sure
March 20, 2010
By loveyourdog
from Texas
Value:
4 out of 5
4 out of 5
Quality:
3 out of 5
3 out of 5
Effectiveness:
3 out of 5
3 out of 5
Satisfaction:
2 out of 5
2 out of 5
"I got this product in a timely manner as all of my orders. However to me these capsules are big and they looked funny, as far as the color and such. Just wasn't sure if I wanted to take it, so I didn't. I use a few of NSI vitamins but not this one. Went back to my previous vitamin C supplement which is also powdered/capsule form. Just not for me....."
Age: 35-44
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Less than 30 days
Review 13 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
vatamin c
March 1, 2010
By zippysdoo
from Ohio
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"Ordering was easy, I got my order fast and it proved to be what I ordered."
Age: 45-54
Gender: Female
Daily supplement usage: 1-2 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
Review 14 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
Eveyone needs this
February 21, 2010
By Jacksgirl
from Tampa, Florida
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"Everyone needs Vitamin C supplements, so why not get the most advanced formula in AdvanC? Price is great; CDC has stated extra Vitamin C during flu season is necessary, so this is a winner."
Age: 55-64
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
Review 15 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
1 out of 5
1 out of 5
product did not agree with me
February 20, 2010
By vitaperson
Satisfaction:
1 out of 5
1 out of 5
"I have taken quercetin, citrus bioflavanoids and vit c individually for many years without a problem.
I was hoping to save money by using a combined product. Unfortunately this product disagrees with me and was a waste of money.
"
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Less than 30 days
Review 16 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
Great price and quality
January 18, 2010
By Charly51
from PR
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"Vitamin c is essential for the inmune system and many other body functions. High dosis are needed for cardiovascular health, skin, cellular regeneration and anti aging benefits."
Age: 55-64
Gender: Male
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
Review 17 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
Doesn't upset my stomache
January 1, 2010
By Lidansa
from California
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"This is the 1st Vitamin C that doesn't upset my stomach. That really thrills me."
Age: 65-74
Gender: Female
Referral source: Self-referred
Duration of use: 30-60 days
Review 18 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
Smooth
December 14, 2009
By paprika
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"No digestive issues with this one! Try it!"
Age: 55-64
Gender: Female
Daily supplement usage: 3-5 supplements daily
Reason for usage: Specific health concern
Duration of use: Over 180 days
Review 19 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
4 out of 5
4 out of 5
Good stuff
October 10, 2009
By ChickenPower
from San Francisco, CA
Value:
4 out of 5
4 out of 5
Quality:
4 out of 5
4 out of 5
Effectiveness:
4 out of 5
4 out of 5
Satisfaction:
5 out of 5
5 out of 5
"It would be even better if it include bromelain."
Age: 35-44
Gender: Male
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: 30-60 days
Review 20 for NSI Advan-C® with Quercetin & Citrus Bioflavonoids -- 1000 mg per serving - 180 Capsules
Overall Rating:
5 out of 5
5 out of 5
Good C for you!
September 29, 2009
By jrgpsych
Value:
5 out of 5
5 out of 5
Quality:
5 out of 5
5 out of 5
Effectiveness:
5 out of 5
5 out of 5
Satisfaction:
5 out of 5
5 out of 5
"This is a comprehensive Vitamin C product and represents good value for the price!"
1234next>>