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Nitrogen-doped CQDs (N-CQDs) synthesised from castor seeds demonstrated negligible cytotoxicity in WI-38 lung fibroblasts across a wide concentration range, highlighting their safety profile in prolonged cellular studies and pH-sensing applications [155]

B12 is essential for the normal function of immune cells, and deficiency has been associated with impaired immune responses

Ensures that every dose is free of harmful bacterial byproducts and complies with USP 85 safety standards

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These studies indicate that 5-amino-1mq can delay skin fibroblast senescence by regulating NAD+ metabolism, providing a novel intervention target for skin anti-aging research