l-glutathione peptide (GSH) 600mg (CAS 170-18-8) It is available in both powder and capsule form L-Glutathione

While both cell types showed increased HO levels, no intergroup differences emerged

doi: 10.3389/fphar.2021.718147 Received 09 June 2021 Accepted 17 November 2021 Published 13 December 2021 Volume 12 - 2021 Edited by Fan Jiang, Shandong University, China Reviewed by Dechang Chen, Shanghai Jiao Tong University, China Ying Li, Xian Jiaotong University, China Updates Copyright 2021 Tepes, Gojkovic, Krezic, Zizek, Vranes, Madzar, Santak, Batelja, Milavic, Sikiric, Kocman, Simonji, Samara, Knezevic, Barisic, Lovric, Strbe, Kokot, Sjekavica, Kolak, Skrtic, Seiwerth, Boban Blagaic and Sikiric

2002 Oct;82(5):905-41

The INCI designation for AHK-Cu is Copper Tripeptide-1 Acetate (commonly marketed as Copper Peptide AHK-Cu)

All four Day 1 peptides failed on multiple grounds