Most sleep supplements in India - including Carbamide Forte, Tata 1mg Melatonin, and Himalaya-format blends - rely on supplemental melatonin as their primary active. Reincarn Night Reboot does not. Here's the science behind that decision.

Problem 1: Exogenous melatonin is a hormone, not a nutrient

Melatonin is not a vitamin or mineral - it is a hormone naturally produced by the pineal gland. Introducing it from an external source signals to the body that it need not produce its own. With regular use, this can suppress endogenous melatonin production and desensitise melatonin receptors over time, potentially making it harder to fall asleep naturally without a supplement.

Problem 2: Indian melatonin doses are far above physiological levels

The most common melatonin supplements sold in India are dosed at 5mg to 10mg per tablet. The body naturally produces approximately 0.1mg to 0.3mg of melatonin per night. Doses of 5–10mg create supraphysiological blood melatonin levels - far above what is needed for sleep, and associated with next-day grogginess, vivid dreams, and disrupted natural rhythms in some users.

Research published in PLOS Medicine (Lewy et al.) and clinical guidelines from the American Academy of Sleep Medicine suggest effective melatonin supplementation for circadian reset occurs at 0.5mg to 3mg - one tenth of the dose most Indian products sell.

Problem 3: Melatonin targets sleep onset - not deep sleep architecture

Melatonin helps regulate when you fall asleep (circadian timing). It does not meaningfully improve the quality of sleep once you're asleep - particularly N3 deep sleep (slow-wave sleep), which is where memory consolidation, cellular repair, growth hormone release, and cortisol reset occur. Reincarn Night Reboot targets N3 deep sleep directly through Maizinol UP165, Glycine, Magnesium Bisglycinate, and L-Theanine.

Night Reboot takes a three-pronged approach to supporting your body's own melatonin system - without introducing the hormone externally.

Maizinol UP165™ - the MT2 receptor approach

Maizinol® is a patented, standardised extract of corn leaf (Zea mays) manufactured by Unigen Inc. ↗. Its bioactive compounds bind directly to melatonin receptors - particularly the MT2 receptor - with approximately 4x higher affinity than supplemental melatonin. Rather than flooding the system with synthetic hormone, Maizinol amplifies the melatonin signal at the receptor level.

In a double-blind trial (Talbott et al., 2023), participants receiving 250mg Maizinol UP165 - the exact dose in Night Reboot - showed up to +38% more time in N3 deep sleep, up to 49% improvement in sleep quality scores, and up to 36% reduction in salivary cortisol. PMC9889011 ↗

A 2026 triple-blind RCT (Doma et al., KGK Science Canada) confirmed these findings in 80 participants, with improvements in total sleep time and sleep efficiency. Published in Food Science & Nutrition, 2026.

Tart Cherry Extract - tryptophan preservation

Tart Cherry (Prunus cerasus, 400mg) contains quercetin and chlorogenic acid that inhibit the IDO enzyme - the enzyme that breaks down tryptophan. By preserving tryptophan, Night Reboot supports the upstream raw material your body uses to produce serotonin, and then melatonin. Research by Howatson et al. (2012) found Tart Cherry supplementation was associated with significant increases in urinary melatonin levels and improvements in sleep quality. PubMed ↗

Vitamin B6 as P5P - synthesis cofactor

Vitamin B6 in its active coenzyme form (Pyridoxal-5-Phosphate, 2mg) is an essential cofactor in the enzymatic steps that convert tryptophan → serotonin → melatonin. Night Reboot uses the active P5P form rather than less bioavailable Pyridoxine Hydrochloride, ensuring this conversion pathway is not rate-limited.