
25 Years helping customers live well

Developed
by Rob Keller MD

GMP Certified
Highest Standards

180 Capsules

Use 6 Capsules Daily

30-Day Supply

Subscription Price $42.95

180 Capsules

Use 6 Capsules Daily

30-Day Supply

Subscription Price $66.00
Ingredients that work together to provide nutritional and antioxidant support, including nutrients and compounds involved in the body's natural antioxidant and glutathione pathways.
Vitamin C An essential nutrient and antioxidant that supports the body's natural antioxidant defenses and helps protect cells from oxidative stress.*
L-Glutamine An amino acid that serves as a building block for proteins and plays a role in normal cellular and metabolic functions.*

NAC (N-Acetyl Cysteine) Provides cysteine, an amino acid used by the body to produce glutathione. NAC supports the body's natural glutathione production process and antioxidant defenses.*
ALA (Alpha-Lipoic Acid) An antioxidant that supports the body's natural antioxidant defenses and helps protect cells from oxidative stress.*

Cordyceps A mushroom-derived ingredient traditionally used in wellness formulations and valued for its naturally occurring compounds.*
N-Acetyl D-Glucosamine A naturally occurring compound that provides building blocks used in the body's natural production of certain structural components, including hyaluronic acid.*
Quercetin A naturally occurring flavonoid with antioxidant properties that helps support the body's natural antioxidant defenses.*
Milk Thistle Extract A botanical extract containing naturally occurring compounds with antioxidant properties that complement the body's natural antioxidant defenses.*
The Story: How OGF® & MaxGXL™ Are Connected†
My husband and I used MAX GXL when it was originally formulated and also became distributors and were active for several years. When OGF became available more recently we again started using the product and find its continued effectiveness, especially in the fact that my husband is now a nonagenarian and I am close to being the same!
I have been using the OGL formula since the year it was introduced by Dr Keller with Max Tremendous product and does more then is stated.
I started using the original formula, Max Gxl in 2008 and then Max International bought it a few yrs later and watered it down. I had no idea, now back to Dr Keller's original formula since 2017, theres a big difference. So Thankful to Dr Keller! It has changed my life and I will never stop taking OGF till the day I die which will be past 100 yrs since I'm powered by Glutathione! Love you guys!!!
I started taking the glutathione supplement back in 2003 when it was being sold by MAX GL and was recommended to me by my massage therapist at the time. Eventually, Robert Keller MD took over and starting selling the supplement we have today because the MAX GL formula was not consistent with the formula that Dr. Keller had originated. So I have taken this formula for 17 years and I can honestly say that it is responsible for my excellent health. Yes, I do take other supplements as they come along and I think they would enhance further health, but if there would be only one supplement that I take on a daily basis, OGF would be it.
I appreciate the original formula for what it does and I appreciate the cost compared to Max International that changed the formulation and I think increased the price. I feel the values are similar as far as quality.
Great product cheaper than buying from Max International.
We proudly offer the RobKellerMD® Total Satisfaction Guarantee.
If you are not fully satisfied with your RobKellerMD® purchase, you may return your first bottle of each separate product type purchased within 30 days of delivery for a full refund, less shipping & handling costs. All bottles purchased for which you are requesting a refund must be returned before a refund can be processed. Refunds will not be given on manual reorders, or reorders automatically generated through your participation in the RobKellerMD® Subscription program. If multiple bottles are purchased, only one opened bottle of each separate product type is eligible for a refund.
View Full Refund Policy
Monthly Subscription - Please take a few minutes to read the following, because when you purchase our products through the RobKellerMD® Monthly Subscription program, you automatically accept the following terms and conditions. If you are happy with the products you are receiving from RobKellerMD® through our Monthly Subscription program, simply do nothing and your credit card will be charged every 30 days thereafter and we will automatically send you a fresh 1-month supply of the RobKellerMD® products that you ordered. The credit card you provided AT THE TIME YOU AGREED TO PARTICIPATE IN THE SUBSCRIPTION PROGRAM will be billed the agreed upon rate (plus shipping and handling). You may cancel your Monthly Subscription of RobKellerMD® products at any time by simply emailing us at: info@robkellermd.com and simply informing us of your intent to no longer participate in the program. If you are not fully satisfied with the RobKellerMD® products you received, you may return your purchase within 30 days of delivery for a full refund, less shipping and handling costs.
Monthly Subscription refills are not eligible for returns.
We require a 10 day notice of cancellation prior to order processing. If that does not occur, the order is the customer's responsibility.
This product has been manufactured and prepared in the USA by a GMP certified facility in strict conformance with industry and governmental standards. Purity and potency guaranteed.
*The statements on this page have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
† Trademark & Comparative Product Disclaimer: All product names, trademarks, and registered trademarks referenced on this page are the property of
their respective owners. MaxGXL™ is a trademark of its respective owner and is not owned by RobKellerMD. Product comparisons are provided for
informational purposes and are based on product labels and other publicly available information available at the time of comparison. We make
reasonable efforts to ensure that comparison information is accurate and current; however, product formulations, ingredients, serving sizes, pricing, and
labeling may change. Please refer to the manufacturer's current product label for the most up-to-date information.