How much L-Cystine should I take?

The effective dose is 500 mg/day (combined with 250 mg glutathione).

What products contain L-Cystine?

HypeCheck has analyzed 2 products containing L-Cystine, including Optimum Nutrition 100% Gold Standard Whey.

Based on weak evidence, 500 mg L-cystine combined with glutathione lightened skin and reduced dark spots in Asian women over 12 weeks..

500 mg L-cystine combined with glutathione lightened skin and reduced dark spots in Asian women over 12 weeks.

Weak Evidence

500 mg L-cystine combined with glutathione lightened skin and reduced dark spots in Asian women over 12 weeks.

500 mg/day (combined with 250 mg glutathione)

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