Overview
A covalently linked dimeric nonessential amino acid formed by the oxidation of cysteine. Two molecules of cysteine are joined together by a disulfide bridge to form cystine.
Indication
It has been claimed that L-cysteine has anti-inflammatory properties, that it can protect against various toxins, and that it might be helpful in osteoarthritis and rheumatoid arthritis. More research will have to be done before L-cysteine can be indicated for any of these conditions. Research to date has mostly been in animal models.
Associated Conditions
- Acne
- Alopecia
- Atrophic dermatitis
- Hair Damage
- Hair growth abnormal
- Nail growth abnormal
- Psoriasis
Clinical Trials
Title | Posted | Study ID | Phase | Status | Sponsor |
|---|---|---|---|---|---|
2025/01/24 | Phase 3 | Not yet recruiting |
FDA Drug Approvals
Approved Product | Manufacturer | NDC Code | Route | Strength | Effective Date |
|---|---|---|---|---|---|
| No FDA approvals found for this drug. | |||||
EMA Drug Approvals
Approved Product | Authorization Holder | Status | Issued Date |
|---|---|---|---|
| No EMA approvals found for this drug. | |||
HSA Drug Approvals
Approved Product | Manufacturer | Approval Number | Dosage Form | Strength | Approval Date |
|---|---|---|---|---|---|
| No HSA approvals found for this drug. | |||||
NMPA Drug Approvals
Approved Product | Company | Approval Number | Drug Type | Dosage Form | Approval Date |
|---|---|---|---|---|---|
| Cystine Tablets | 国药准字H41024802 | 化学药品 | 片剂 | 6/24/2020 | |
| Cystine Tablets | 国药准字H32026416 | 化学药品 | 片剂 | 8/17/2020 | |
| Cystine Tablets | 国药准字H50021727 | 化学药品 | 片剂 | 8/25/2020 | |
| Cystine Tablets | 国药准字H20064740 | 化学药品 | 片剂 | 1/7/2022 | |
| Cystine Tablets | 国药准字H50021728 | 化学药品 | 片剂 | 8/25/2020 | |
| Cystine Tablets | 国药准字H41024803 | 化学药品 | 片剂 | 6/24/2020 | |
| Cystine Tablets | 国药准字H22024519 | 化学药品 | 片剂 | 8/10/2020 | |
| Cystine Tablets | 国药准字H32025756 | 化学药品 | 片剂 | 9/9/2020 | |
| Cystine Tablets | 国药准字H41024749 | 化学药品 | 片剂 | 7/20/2020 | |
| Cystine Tablets | 国药准字H22024520 | 化学药品 | 片剂 | 3/5/2020 |
PPB Drug Approvals
Approved Product | Registration No. | Company | Licence No. | Strength | Registration Date |
|---|---|---|---|---|---|
| PANTOGAR CAP | N/A | N/A | N/A | 4/17/2002 |
TGA Drug Approvals
Approved Product | ARTG ID | Sponsor | Registration Type | Status | Registration Date |
|---|---|---|---|---|---|
| USANA Hepa+ | 330959 | Medicine | A | 3/10/2020 | |
| Wonderlab Liver Detox | 411271 | Medicine | A | 6/26/2023 |
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