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Description
It has a high affinity for Copper(II) and so is present in two forms, GHK and GHK-Cu ( Figure 1a,1b ) [1]

Neuropharmacological evaluation on four traditional herbs used as nervine tonic and commonly available as Shankhpushpi in India

Glutathione works by: Inhibiting melanin production: It suppresses the enzyme tyrosinase, which reduces pigmentation and uneven skin tone

PMID: 31959736 Last updated: March 25, 2026