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10.1007/s10067-017-3851-y 132 PengX.LiX.XieB.LaiY.SosnikA.BoucettaH.et al (2023)

Gln transporters in the body encompass the alanine-serine-cysteine transporter 2 (ASCT2), amino acid transporter B0,+ (ATB0,+), L-type amino acid transporter 1 (LAT1), cystine/glutamate antiporter (xCT), sodium-coupled neutral amino acid transporter 1 (SNAT1), and sodium-coupled neutral amino acid transporter 2 (SNAT2)

Oral claims

The Deeper Issue: Even if liposomal glutathione showed better absorption, no human study has established that this translates to the specific melanin-index reduction cited from the 2019 trial

Its especially in regions with limited sunlight or for people with darker skin

Court MH, Greenblatt DJ