Anti-Aging Protocol
GlutathioneComplete Dosing & Administration Guide
Your body's master antioxidant — a tiny three-part protein that shields your cells and helps clear out toxins.
Dose Range
250-1000mg
Frequency
Once daily by mouth; IV and inhaled protocols are typically given 1–3 times per week
Route
Oral (capsules, liposomal, sublingual)
Cycle Length
Often used continuously; studied by mouth for up to 6 months
Dosing
How much
do I take?
Starting Dose
250 mg per day (oral)
This is the lower dose used in the 6-month oral trial, which still raised body glutathione stores by roughly 17–29% in blood [2]. A gentle starting point.
Standard Dose
1,000 mg per day (oral)
The higher oral dose in the same trial raised blood glutathione about 30–35% and more than doubled natural killer immune-cell activity by 3 months [2]. Liposomal forms may improve absorption.
Advanced Dose
1,400 mg IV three times weekly, or 200 mg intranasal
Clinic-administered routes that bypass gut breakdown. IV 1,400 mg three times weekly was well tolerated in Parkinson's [1]; a single 200 mg intranasal dose raised brain glutathione [3]. Use only under medical supervision.
Timing
Best time to take
Oral glutathione is commonly taken in the morning. Some people split it or take it on an empty stomach, though trials simply used daily dosing [2].
With food?
Can be taken with or without food. An empty stomach may slightly reduce competition from dietary proteins, but consistency matters more than timing.
If stacking
Often paired with vitamin C, N-acetylcysteine (NAC, a cysteine source the body uses to build glutathione), alpha-lipoic acid, or selenium, which support the glutathione recycling system.
Adjusting Your Dose
Increase if
- +You tolerate the starting dose well and want stronger support
- +You are using a low-absorption oral form and feel no effect after several weeks
Decrease if
- -You notice stomach upset, bloating or loose stools
- -You experience any cough or chest tightness with inhaled forms
Signs of right dose
- ✓Steady energy and general well-being
- ✓No digestive upset
- ✓Lab work (if checked) shows improved glutathione or oxidative-stress markers
Dosing Calculator
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Administration
How do I
use it?
Reconstitution
What you need
- •Oral capsules or liposomal liquid need no mixing
- •For injectable/IV vials (clinic use): bacteriostatic water or sterile saline
- •Alcohol swabs
- •Appropriate syringe
Injection
Route
Most users take glutathione by mouth and never inject. Clinical studies used intravenous (IV) infusion [1] or intranasal spray [3]; intramuscular injection is also used in some clinics.
Best sites
- •IV: arm vein (clinic only)
- •Intranasal: into a nostril
- •Intramuscular: upper outer thigh or shoulder (clinic only)
Technique
- 1.IV and IM routes should be performed by a trained healthcare professional
- 2.For intranasal, follow the compounded product's spray instructions
- 3.Always use sterile, single-use supplies
- 4.Never attempt IV dosing at home
Storage
Signs of degradation
Safety
Is it
safe?
Safety Profile
Glutathione has a reassuring safety record in studies. Taken by mouth at 250–1,000 mg a day for 6 months, people had no significant side effects [2], and IV glutathione at 1,400 mg three times a week was well tolerated with no safety concerns [1]. The clearest warning is for the inhaled form: in people with mild asthma, nebulized glutathione triggered coughing and airway tightening, likely from sulfite sensitivity [5].
Most human studies are small pilot trials lasting weeks to months, so long-term safety at high doses and across all routes is not fully mapped. The strongest safety data are for oral and short-course IV use; inhaled use carries a specific asthma caution [1][2][5].
Common Side Effects
Experienced by some users
Generally well tolerated
Across oral and IV studies, most people had no significant side effects [1][2].
Management: No action needed for most users; start low and build up.
Unpleasant smell or taste
Sulfur-containing glutathione can have a rotten-egg odor, most noticeable with inhaled or liquid forms.
Management: Use capsules or rinse the mouth; this is harmless.
Less Common
- •Mild stomach upset, bloating or loose stools
- •Transient cough
These typically resolve with continued use or dose adjustment.
Stop and Seek Help If
- ×Any wheezing, cough or chest tightness with inhaled forms
- ×Signs of an allergic reaction (rash, swelling, trouble breathing)
- ×Persistent stomach upset that does not settle with a lower dose
- ×Your doctor advises stopping before a procedure or new treatment
This information is educational and not medical advice. Glutathione is not an FDA-approved drug. Talk with a qualified healthcare provider before starting, especially if you have asthma, are pregnant or breastfeeding, or take other medicines.
Interactions
With other peptides
- ✓No specific peptide interactions are well documented; generally considered compatible
With medications
- !Chemotherapy (e.g., cisplatin) - Studied to reduce some chemo side effects, but could affect treatment — use only under oncologist guidance
- ✓Other prescription medicines - Discuss with your doctor before combining
With supplements
- ✓Vitamin C - Helps recycle glutathione back to its active form
- ✓N-acetylcysteine (NAC) - Supplies cysteine the body uses to build glutathione
- ✓Alpha-lipoic acid - Supports glutathione regeneration
- ✓Selenium - A cofactor for glutathione peroxidase
Want the Full Picture?
View the complete Glutathione research profile including mechanism of action, clinical studies, effectiveness timeline, and FAQ.
View Full Glutathione Profile