Unfortunately, the increased activity of SA--gal is not a specific marker for senescent cells, as its elevation can also be observed in certain conditions in hair follicles, sebaceous glands, and activated macrophages [27, 28]
however, it is highly recommended to conduct a patch test prior to regular application of skincare products.[4] Users should discontinue use if they experience any signs of allergic reactions, such as redness, hives, or itchiness.[5] While copper can potentially cause skin irritation or toxicity, in vitro studies suggest that GHK-Cu complexes may have a lower likelihood of inducing these effects.[6] However, it is always recommended to consult a healthcare professional before using any new skincare product
Major classes of drugs currently in clinical trials include neuroprotectants, stem cell therapies, tau vaccines, humanized antibodies, metabolic modulators, neurotransmitter modulators, DNA modifications, anti-hypertensives, NSAIDs, and a host of various remedy and vitamin treatments [29]
2014 Nov 5
