essential fx acyl-glutathione rejuvenating moisturizer Perricone MD Intensive Overnight 2oz with a rich Perricone MD Essential Fx Acyl-Glutathione
Description
While this question mentions a different peptide (PT141), the underlying principle is similar: nasal spray offers convenience

May be recommended for individuals with significant absorption difficulties

Rubinskii AV, Linkova NS, Chalisova NI, Noskin LA, Marchenko VN, Khavinson VK
Available online: 20.Food Standards Australia and New Zealand, Novel Foods
It is not approved for human or veterinary application

Saka R, Chella N, Khan W