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Description
Here is the plain version: what it is, where the hype outruns the proof, how to cycle it, the hard safety lines, and what the messy 2026 rules mean

Digital versus physical logs Either works

Once a pen is first used, the 21-day clock starts regardless of storage method

as safe or effective and, in recent years, the agency had noted that they were increasingly being marketed with unproved claims that they had cosmetic, anti-aging and disease-fighting benefits

Synaptic resilience is associated with maintained cognition during ageing
