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GSE Grapefruit Seed Extract GSE - Therapy Uses

How to Use GSE

Professional, MAXIMUM strength GSE is the most potent form of GSE available (60 % Grapefruit extractives , 40% Vegetable Glycerine).

✔ Average dose is only 3-5 drops

✔ 1 oz. bottle of GSE contains ~1000 drops

GSE is also available in tablet, powder, and diluted forms -  the tablet form and powder-filled capsules for oral use avoid the bitter taste of liquid GSE. See information on equivalent doses to liquid form at:

Available forms of GSE

PLEASE read the warnings at the following link before using GSE


GSE has applications in many areas - you will find the doses for specific applications in the following charts:

Human Uses

Household / Miscellaneous Uses

Horticultural uses

Pets, Animals, Birds and Livestock Uses

Individual doses are subject to increase or decrease - according to individual tolerance, severity of condition, and results of previous doses. It is best to increase frequency of dose rather than increase the size of the dose by more than 2-3 times.

To overcome bitter taste when consuming liquid GSE - mix GSE with vegetable, fruit and citrus juices, citrus is especially good. Best way is to add it to your daily green drink –you won't even taste it in there! Alternatively, use tablet form of GSE.

If used long-term, it may be necessary to take a Probiotic with GSE -just as synthetic antibiotics can kill off the naturally occurring flora in the body, so might GSE if it is used long-term in the treatment of a chronic infection, in which case it may be necessary to take a good probiotic supplement.

Take GSE between meals, and probiotics 20-30 minutes before meals - As with anything, consistency and persistence are the keys to success.

How long can I safely take grapefruit extract? - You can safely take GSE over a long period, if needed, without any worry of toxicity. People have taken GSE every day for years (as a preventative) without side-effects of any kind. An example of a need for long-term use is for a long- standing parasite infection, which could take quite some time to overcome.

Does GSE interfere with High Blood Pressure Medication? - There are NO reports of any drug interactions or contraindications of any kind. Drinking fresh grapefruit juice or eating grapefruits when taking certain medications has increased medication absorption, but GSE contains 0.1% or less of the compounds that cause this phenomenon.

Herxheimer Reaction - It is advisable to start with smaller doses of GSE and increase slowly. When bacteria, fungi, or other pathogens begin to die, toxins are set free, which can possibly cause headaches, nausea and fatigue that can last several weeks. If such a reaction occurs, it isrecommended that you decrease the dose or keep it low and increase it very slowly, adjusting as necessary to reach a maintenance level.

Herxheimer Reaction

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