Day + Night System · 60 Daybreak capsules + 30 × 10g Nightfall packets
The complete circadian system in one box: a month of Daybreak capsules and 30 Nightfall packets, sequenced to support energy, focus, sleep, and recovery around the clock.
Inside every dose
No proprietary blends — every dose printed here is printed on the box.
REZE Daybreak
60 capsules
Paraxanthine, citicoline, L-theanine, L-tyrosine, methylated B12
REZE Nightfall
30 × 10g packets
Magnesium glycinate, glycine, L-theanine, magnolia bark, saffron, lemon balm, sour cherry, and more
Daybreak within an hour of waking. Nightfall 30–60 minutes before bed. One box, one month, both halves of your day.
Reviews
5.0 out of 5 · 2 reviews
Bought this as a couple's gift and we're both hooked. One box, one ritual, way simpler than juggling two subscriptions.
May 2026
The full system is genuinely better than either half alone — better sleep makes the Daybreak capsules hit different.
April 2026
Questions
Yes. On subscription the Duo is $109/month versus $116.98 for Daybreak and Nightfall separately — and one-time purchases save $19.
The Duo ships in the magnetic-closure gift box with both formulas seated inside. Add a note at checkout and we'll print it on the inner lid card.
They're designed together. L-theanine appears in both at complementary doses, and paraxanthine's short half-life means nothing from Daybreak lingers long enough to interfere with Nightfall.
Completes the system
Daily Support
Paraxanthine — caffeine's own active metabolite — delivered directly for calm, jitter-free energy, paired with citicoline for mental clarity and L-theanine to smooth the edges. Formulated to complement your morning coffee, not replace it.
Nighttime Support
A melatonin-free evening tonic built around a full clinical dose of glycine, 300mg of elemental magnesium, and magnolia bark — with saffron, lemon balm, and sour cherry rounding out a formula designed to quiet a racing mind and support deep, uninterrupted sleep.