L-Glutathione – Info & Protocol

What it is

L-Glutathione is the body’s master antioxidant, made of three amino acids (glutamine, cysteine, glycine). Injectable glutathione bypasses gut breakdown and gives much higher bioavailability than oral forms.

Key Benefits

Liver detox & protection (very popular alongside orals, alcohol use, meds, PEDs)

Reduces oxidative stress & inflammation

Improves skin tone & brightness (not bleaching, but evens complexion)

Immune system support

Supports recovery & fatigue reduction

Neuroprotective effects

May help with insulin sensitivity and metabolic health

Administration

Route:

Subcutaneous (SubQ) ✅

Intramuscular (IM) ✅

Frequency: 2–5x per week depending on goal

Standard Protocols

General Health / Antioxidant Support

600–1,200 mg

2–3x per week

SubQ or IM

Liver Support / On-Cycle Protection

(Especially with orals, peptides, GLP-1s, or alcohol use)

1,200–2,000 mg

3x per week

IM preferred

Skin, Anti-Aging & Glow Protocol

1,000–1,500 mg

2–3x per week

Often stacked with:

Vitamin C (oral or IV)

GHK-Cu

NAD⁺ or peptides

Advanced / Short-Term Boost

(Not long-term daily)

2,000 mg

Up to 5x per week

4–6 week cycle, then reduce

Reconstitution & Storage

Reconstitute with bacteriostatic water

Store refrigerated after opening

Use within 14–30 days (depending on sterility)

Protect from light

Stacking Works Well With

Vitamin C (synergistic antioxidant effect)

NAC (boosts natural glutathione production)

GH / Peptides

Tirzepatide / Semaglutide

BPC-157 / TB-500

GHK-Cu (skin & repair)

Side Effects (Rare & Mild)

Slight headache

Mild nausea (usually dose-related)

Injection site irritation

Very high doses may lower zinc/copper over time → supplement if using long-term

Who Should Be Careful

Asthma sufferers (start low)

Sulfur sensitivity

Always avoid mixing in same syringe with unknown compounds