Short answer: The manufacturer's own summary compresses this into four steps — take, absorb, support, maintain. That's accurate as far as it goes, but it skips the one detail that actually matters.
Why "accurate as far as it goes" is a careful, fair qualifier
This doesn't call the manufacturer's overview wrong — it directly acknowledges its accuracy while pointing out its genuine incompleteness.
Why citrulline's specific role is the detail most worth filling in
Why citrulline is in there at all is named directly as the missing piece — the six-step breakdown exists specifically to answer this one question the four-step version leaves open.
💡 Worth knowing: a simplified marketing overview and a complete mechanistic explanation are two genuinely different things worth reading both of.