Conditionally essential — demand rises with age and collagen turnover.
What the evidence supports: sleep quality; other claims are early.
This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.
Ongoing use appears safe; often trialled for sleep quality.
Older adults, people with low connective-tissue protein intake, and poor sleepers.
Run your full list through the interaction check.