How we handle affiliate links.

Sun Endurance is independent. Some of the product links on this site are affiliate links — if you click one and buy something, the retailer may pay us a small commission. It never costs you anything extra, and the price you pay is the same as if you'd gone direct.

Commissions do not buy coverage and do not influence verdicts. We decide what to write about based on what's relevant to athletes using light as a training variable. A product earning a commission is treated exactly like one that doesn't.

We will not soften a review, omit a flaw, or recommend something we wouldn't use ourselves because a link pays. Where the evidence is thin or a product protects rather than improves, we say so plainly.

No brand pays for placement, ranking, or favourable language on Sun Endurance. We do not accept sponsored reviews. If that ever changes — for a specific piece of work — it will be labelled in the article itself, above the fold, in plain English.

Questions about a specific link or relationship? Email alfiegordonco@gmail.com.