aseir custom royal blue serum ghk-cu france (@aseircustom) • Instagram photos and videos this serum is designed to target the signs of aging and provide your skin with the nourishment it needs to look and feel its best. Aseir Custom GHK-Cu Peptide Skincare

10.1016/j.semcdb.2012.03.017 117 ZhangG.YaoQ.LongC.YiP.SongJ.WuL.et al (2025)

- Patients who seek to improve skin tone and reduce hyperpigmentation as well as interested in anti-aging treatments

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Intravenous administration allows glutathione to bypass the digestive system, leading to higher bioavailability and more effective increases in glutathione levels compared to oral supplements

PMID: 32690803

Taberna et al., 2020