Beauty
Nail Health
Start with a focused look at Nail Health and its place within beauty.
- How it's examined
- self-reported
- Value type
- scale 0 10
- Better when
- higher is better
- Plausible min
- 0
- Plausible max
- 10
- How often
- monthly
Moved by
Interventions that trials measured against this marker, and which way it moved.No trial has measured Nail Health against an intervention in this library yet.
Via effects
Interventions targeting an effect this marker tracks. Trials did not measure the marker itself.Hair Strengthening
Full write-up
What is it
Nail Health refers to the state of the nails, considered here as a beauty-related measure.
How to measure it
Assess Nail Health once a month and record the result each time. Use the same scoring approach for every measurement so that changes can be compared from one month to the next.
Higher scores indicate better Nail Health. Focus on the direction of change across monthly measurements rather than treating a single reading as definitive.
What good looks like
For Nail Health, this measure runs from 0 to 10, with higher values representing the better direction. A favorable reading is therefore one that is toward the higher end of the scale, but there is no single score that serves as a verdict for everyone. Use the scale to orient yourself around a personal baseline and a target that makes sense for your own tracking.
Because readings are taken monthly, the pattern across several months matters more than any one result. A sustained upward trend may be more meaningful than a single higher reading, while a stable pattern can be more informative than a short-term fluctuation. Compare readings only when the measurement conditions are kept as consistent as possible: using the same device, measuring at a similar time of day, and following the same technique. Differences in device, timing, or technique can make two scores difficult to compare even when they are recorded on the same 0 to 10 scale.
What moves it
No intervention here measured Nail Health directly. Instead, the listed interventions target related effects that Nail Health tracks, though trials did not measure the marker itself. This makes these associations indirect rather than direct evidence that the marker changes.
Vitamin B7 (Biotin), Collagen, Cod Liver Oil, Glycine, Hyaluronic Acid, and Iron are linked with improvement in Nail Health Improvement. Krill Oil, Vitamin B7 (Biotin), Collagen, Selenium, Aloe Vera, and Apple Cider Vinegar are linked with improvement in Hair Strengthening. The evidence behind these related effects ranges from pharmacology references to animal studies and anecdotal reports, so they do not carry the same weight.
Where timeframes are given, the period to reassessment ranges from 8 weeks to 15 months. The longer timeframe appears in the Nail Health Improvement information for Vitamin B7 (Biotin), which lists 6-15 months. These timeframes describe when changes were discussed or assessed for related effects, not a validated schedule for measuring Nail Health itself.