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Used poorly, or by patients shopping on the gray market, they are a waste of money or a real safety problem

This may include avoiding: People should check with a doctor before taking over-the-counter medications, supplements, or herbal remedies

These findings support the rationale for frequent, low-dose supplementation strategies in healthy individuals, while also emphasising the need for personalised approaches in those with malabsorption syndromes (Bor et al., 2010)

It is sold almost exclusively online as an unregulated "research chemical" labeled "not for human consumption," a designation sellers use to avoid marketing it as an illegal supplement or drug