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& Shimada, Y
Its a 15-amino-acid peptide originally derived from a protective protein naturally found in human gastric juices, and it has been studied for more than 30 years by multiple independent research groupsmost notably teams in Croatia and Taiwan
In normal cells, the GSH system can protect proteins, membranes and DNA from oxidative injury
This dual action supports healthier, more efficient respiration, improves oxygen exchange, and helps to alleviate the persistent, exhausting breathlessness that plagues so many COVID long-haulers
Laboratory studies show GHK-Cu treatment results in improved hair shaft diameter, enhanced cuticle structure regularity, increased cortical density, and superior overall fiber integrity, translating into hair that appears thicker, stronger, and more resistant to breakage in experimental models
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