SAFE
Chondroitin sulfate A
Chondroitin-4-sulfate (CSA)
Possibly Safe
V2 Verified
Specialty Bioactives
PubMed Studies
9
About
Specific chondroitin sulfate isoform with sulphate at C-4 position. Predominant form in articular cartilage. Preferentially used in some OA supplements.
How it works (mechanism of action)
Acts on cellular signalling pathways relevant to the documented clinical indications. Contains bioactive compounds with enzyme-modulating, receptor-binding, or antioxidant properties studied in peer-reviewed literature.
👥 Safety by Population
🚫 Contraindications & Warnings
Same as chondroitin sulfate. Anticoagulant interaction. Source allergen consideration.
🏷️ Other Names
Chondroitin-4-sulfate (CSA)