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GHK-Cu levels drop by 60 percent between ages 20 and 60

For research and laboratory characterisation only

Zhou, Y., Wang, S., Li, Y., Yu, S

In skincare, glutathione is typically used for its ability to: Neutralise free radicals Support skin defence against environmental stress Contribute to a more even-looking complexion Oxidative stress caused by UV exposure, pollution, and lifestyle factors can accelerate the appearance of fine lines, dullness, and pigmentation irregularities

Further trials should conduct better randomization and blinding procedures, recruit more participants, and provide adequate reporting

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