Dermatan sulfate
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Synthesis
Natural source, found mostly in connective tissue and skin.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Actives, %, ≥
85.0
Loss on drying, %, ≤
10.0
Test Methods
(1), Actives
 
(2), Loss on drying
105°C, 4h.
2. Hazardous substances indexes
Item
Hazardous substances indexes
Heavy metals (as Pb), mg/Kg, ≤
20
As, mg/Kg, ≤
3
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents - Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)