The halal status of glutathione depends on its source and manufacturing process. Here’s a breakdown:

✅ Halal Sources of Glutathione:

1. Plant-Based Glutathione – Extracted from natural sources like yeast, fruits, and vegetables.
2. Microbial Fermentation – Many L-glutathione supplements are produced using yeast or bacteria fermentation, which is halal if no haram ingredients are used.
3. Certified Halal Supplements – Some brands obtain halal certification to ensure compliance with Islamic dietary laws.

❌ Potentially Haram or Doubtful Sources:

1. Animal-Derived Glutathione – Some forms are extracted from animal tissues, which could be haram if derived from non-halal slaughtered animals.
2. Gelatin Capsules – If the glutathione supplement is in softgel form, the gelatin may come from non-halal sources (e.g., pork or non-halal beef).

How to Ensure Your Glutathione is Halal:

• Look for Halal Certification from recognized organizations.
• Check ingredient labels for plant-based or fermentation-derived glutathione.
• Avoid supplements with non-halal gelatin capsules (opt for vegetarian capsules).

📖 Islamic Verdict: Most scholars agree that yeast-fermented glutathione is halal as long as it does not contain haram additives. Always check for certifications for assurance.