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suggests that multiple amino acid substitutions are introduced to support the peptides stability against enzymatic degradation potentially: (1) Position 2 (Alanine D-Alanine): Introduces a D-form amino acid, which is less susceptible to standard enzymatic breakdown
In addition to its status as an antioxidant, glutathione is also a peptide composed of three amino acids: cystine, glutamic acid and glycine
Lett., 25(6):403-406, 2004
Topical use presents lower theoretical risk but should still be discussed with a healthcare provider
The appropriate option depends on individual goals, preferences, and healthcare guidance
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