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Source Naturals, L-Cysteine powder, 100 GM
Source Naturals

Source Naturals, L Cysteine powder, 100 GM

$24.30 $35.26 Free U.S. Shipping over $35Free Shipping
Product Code: SN0120
UPC Code: 021078001201

L-Cysteine is a crystalline free-form amino acid that is active in many body processes. L-Cysteine works in the liver to protect the body from harmful substances and may help to prevent oxidation of tissues. L-Cysteine, along with L-glutamic acid, is the rate-limiting predecessor in the synthesis of glutathione peroxidase (one of the body's main antioxidant enzymes), which minimizes fatty peroxidation (fats turning rancid).


3.53 ounces

Suggested Use

1/4 teaspoon per day between meals. If you experience stomach irritation, take with meals.


L-Cysteine (as L-cysteine hydrochloride monohydrate) - 900 mg

About Source Naturals

Source Naturals was created in 1982 to support each individual's potential to enjoy optimal health. Source Naturals' comprehensive Bio-Aligned Formulas help bring the power of alignment to your body. When formulating, we evaluate the underlying causes of system imbalances, and then provide targeted nutrition to interdependent body systems. Our line of more than 600 products also includes well-researched, single entity nutrients in their highest quality and most bioavailable forms.


Do not use if pregnant or nursing. Keep out of reach of children. Please consult your health care provider if currently under care or treatment. Do not exceed recommended serving. See product packaging for additional safety information.


Individual results may vary. This product is not intended to diagnose, treat, cure or prevent any disease. The statements on this website and all affiliates have not been evaluated by the FDA. Advice on treatment or care of an individual patient should be obtained through consultation with a trained health care practitioner.

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Janie Morton

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