SUN ENDURANCELIGHT × PERFORMANCE

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AYO AYO

AYO

AYO

App-timed light glasses for jet lag and morning energy.

470–475nm blue-turquoise, ~250 µW/cm², app-guided timing, 31g, USB rechargeable.

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Independent, science-led reviews and guides on light and human performance — built for endurance athletes who train outdoors.

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Affiliate disclosure: Some product links are affiliate links. We may earn a commission at no cost to you. Verdicts are independent and never paid for.

By Dr Alfie Gordon

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