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An amino acid derivative , L-carnitine, shines as an energy-booster
Can be applied before or after styling, because it won't affect the hair texture at all
Notably, the hydroxyl group at the C4 position of the tetrahydropyran ring of substrate 7 also stabilizes the GSH-thiolate through an additional hydrogen bond (Extended Data Fig
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If fatigue is severe or persistent, its important to discuss it with a healthcare professional to rule out other causes
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