The Claim

The wavelength range of 340–370 nm within UV-A is the most effective for triggering nitric oxide release from nitrite in human skin cells, indicating a specific photoreactive window for potential therapeutic targeting.

Source: Ultraviolet Radiation-Induced Production of Nitric Oxide:A multi-cell and multi-donor analysis

What the research says

Roughly balanced

Support and challenge are close. The picture may shift as more studies come in.

Supports
6score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

Certain types of sunlight, specifically a narrow band of UV light between 340 and 370 nanometers, can trigger a helpful chemical reaction in your skin that releases nitric oxide — which might one day be used to treat health problems.

See the scientific wording

The wavelength range of 340–370 nm within UV-A is the most effective for triggering nitric oxide release from nitrite in human skin cells, indicating a specific photoreactive window for potential therapeutic targeting.

What the research says

1 study
  1. Study: Ultraviolet Radiation-Induced Production of Nitric Oxide:A multi-cell and multi-donor analysis

    This study shows that sunlight’s UV-A rays can make skin cells release nitric oxide, a molecule that helps blood vessels relax. While it doesn’t pinpoint the exact light color (340–370 nm), it confirms that UV-A light does this job, supporting the idea that a specific part of UV light might be especially good for health.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.