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Although thiamine deficiency is rare in developed countries, it can lead to severe neurological disorders, emphasizing the importance of adequate thiamine intake for optimal health and as treatment when administered promptly (42)

FDA staff recommends against adding all seven

Properly engineered liposomal systems can reduce direct peptideskin interaction, improving tolerability and making them suitable for sensitive or post-treatment skin care products.

Toxicity is the bigger concern, particularly if the drug has a narrow therapeutic index, where modest differences in the level can have dangerous effects

10.1016/0006-291X(91)90916-U