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Glutathione plays a key role in the production of enzymes and hormones and is pivotal for immune health
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Hypoglycemic substances, like caffeine, should be avoided
S., Zhang, G
A study comparing GHK-Cu to retinoic acid found that GHK-Cu stimulated collagen production in 70% of treated women, compared to 40% for retinoic acid, with significantly less irritation
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