However, its best to consult a healthcare provider before starting, especially if: Youre pregnant or breastfeeding Youre on long-term medication You have known liver or kidney conditions As always, taking supplements responsibly ensures long-term gains without complications
In addition, individuals who may be vitamin K deficient due to liver failure, those with a propensity to bleed (e.g., bleeding peptic ulcers), and those with inherited bleeding disorders (e.g., hemophilia) or a history of hemorrhagic stroke, should not take -tocopherol supplements without close medical supervision because of the increased risk of hemorrhage (119, 128)
10.1021/acs.jmedchem.5b01009 16 BlaisJ.A.-O
John Wiley and Sons, Blackwell Publishing Ltd
And the term "copper peptides" itself is doing a lot of unearned work, because it lumps together GHK-Cu (the molecule with 50 years of evidence) with AHK-Cu, GHK-NH2, and a range of synthetic copper-binding sequences that have far thinner mechanism data
(PubMed) Flodin NW