Mag O7 | GNC

Product Information



The Ultimate Oxygenating Digestive System Cleanser

Mag O7 is a gentle and fast acting oxygen cleanse that works overnight for most people. This unique combination gently softens unwanted buildup in the digestive tract while providing beneficial oxygen to the digestive system.*

Mag O7 may help people who are:
  • Experiencing slow and sluggish digestion
  • Struggling from common digestive irregularities
  • preparing for a lifestyle change or special event
This product is not intended to be used as a magnesium supplement.


Nutrition Facts
Serving Size  3 Capsule(s)
Servings Per Container  30

Amount Per Serving     % DV

Elemental Magnesium (From A Proprietary Blend of Ozonated Magnesium Oxides)  1035 mg   **
Elemental Potassium (from 261 mg of Potassium Citrate)  99 mg   **

** Daily Value (DV) not established.
Other Ingredients
Certified Organic Rice Flour, Citric Acid, Vegetable Capsules
Label (click image to enlarge)

How To Use

As a dietary supplement, take up to 5 capsules at bedtime with 8-12 oz of water, on an empty stomach for 7-10 days or until the desired cleanse has been attained. Decrease dose for maintenance. Daily dosage will vary depending on individual and intended purpose. Results may vary.
Exclusively Manufactured For: Nutritional Brands
1610 W. Whispering Wind Dr.
Phoenix, AZ 85085


4.8 / 5.0
34 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
It's really works
I love this product. It works fast and no cramping. Just make sure when you take at night to stay near the bathroom that next morning.
September 29, 2018
love it .....really work and do as it instructed....will buy and have recommended....
September 21, 2018
1 month ago
Does exactly as described. Good cleanse for me.
September 7, 2018
1 month ago
Does everything I expected it to
July 29, 2018
3 months ago
Does exactly what it’s suppose to do! I’ve been using thka stuff for over a year!
July 14, 2018
3 months ago
Changed my life!
I discovered this 2 years ago through JJ Smith, a nutritionist. I was always constipated and never felt clean on the inside for years. I've lost weight and it keeps me energized. This is truly a Godsend product for me!
July 13, 2018
Wonderful product
Great results on first try!!
June 22, 2018
4 months ago
Love it!!!
June 21, 2018
4 months ago
Really helps
Relief of bloating without the cramps.
May 3, 2018
6 months ago
It’s so so
It’s ok not doing it for me, it takes to long to work
April 22, 2018
6 months ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 12 questions Browse 12 questions and 27 answers
Is it ok to take if I have diabetes?
A shopper on Aug 9, 2018
how long does it take to work?
A shopper on Mar 9, 2018
BEST ANSWER: It works overnight for me. Usually first thing in the morning.
Can I take it while breastfeeding?
Florence on Apr 13, 2018
BEST ANSWER: I have taken it while breastfeeding and it didn’t have any effect on baby. Hope this helps
When is a good time to take it in the evenings?
latishia M on Mar 6, 2018
BEST ANSWER: I took before bed and had results upon rising in the morning
Could I give this to a 6 year old?
A shopper on Apr 8, 2018
BEST ANSWER: Absolutely not
Is it safe to take every day for maintenance?
Lynn L on Mar 21, 2018
BEST ANSWER: I take it every day. I love how it works! It definitely cleanses well but not harsh! I haven’t had any side effects.
Is it a good product for detox?
Cindy J on Jul 23, 2018
I work at night so is okay to take when I get off?
Sheanett M on Mar 10, 2018
BEST ANSWER: Yes....i work at night too...i take it before i lay down...usually starts working by the time i get up...y-8hrs
Can you give it to a two year old?
A shopper on Mar 5, 2018
BEST ANSWER: Absolutely not!
Does it really have to be taken only at bedtime or can it also be taken in the am in a empty stomach?
A shopper on Aug 29, 2018
BEST ANSWER: Take this at bedtime. If you eat after taking it will not work the way it should. After taking drink a good amount of water. Then it may wake you up and then drink some more water to get your stomach to move. If you take during the day... you could have a big💩 mess!
Is it a good complete detox for toxins also?
Amanda D on Oct 9, 2018
BEST ANSWER: Yes it is it keeps you regular drink plenty of water
Can I give this to a 9 year old overweight girl?
Monica J on Aug 19, 2018