Discolouration

Several compounds in seaweed have been found to suppress the enzyme tyrosinase, which causes hyperpigmentation:

• Polyphenols: Seaweeds, especially brown seaweeds, contain polyphenolic compounds that demonstrate strong tyrosinase inhibitory effects.
• Phlorotannins: These are a specific class of polyphenols found in brown seaweeds which have shown potent tyrosinase inhibition.
• Carotenoids: β-carotene and fucoxanthin are known to directly inhibit tyrosinase activity.
• Mycosporine-like Amino Acids (MAAs): Known UV-absorbing compounds in seaweeds that may contribute to skin protection and preventing discolouration.