Your Melatonin Dose Is 100x Too High
started taking 10mg melatonin pills for over a year. Figured more was better and never questioned it until I looked into the research
Switched to a nasal spray for the last 2 weeks. Three compounds per spray: GABA (10mg), melatonin (100mcg), and DSIP (delta sleep inducing peptide) (20mcg). 100 sprays per bottle.
Yes. 100 micrograms of melatonin lol. 1/100th of a standard pill which sounds like nothing but what I was reading was that your liver destroys 85-97% of oral melatonin before it does anything. A 10mg pill? You absorb maybe 0.15-0.3mg. The rest gets shredded by first pass metabolism. One study found oral bioavailability as low as 2.5%. Nasal skips your liver entirely and hits your bloodstream in about 5 minutes vs 45 for a pill which I mean a lot of us do know nasal delivery for quite a few substances hits way harder and faster than oral 👀so I agree with this.
MIT here found that 0.3mg works just as well as 3mg for sleep. Zhdanova et al., 2001, JCEM, 30 people, double-blind, placebo-controlled. Physiological dose matched the pharmacological dose on sleep efficiency. Their words. Megadoses don’t improve sleep beyond a tiny replacement dose.
A 10mg pill is 30-100x what your body produces daily. Receptors get slammed, desensitize, and now you need more. That zombie morning feeling? Leftover melatonin. At 10mg it takes 4-8 hours to fully clear.
100mcg nasally lands around 70-85mcg in your blood based on animal bioavailability data. Right in the physiological window. No perfect human head-to-head study yet but the pharmacokinetics add up and honestly this community was built of a lot of ”Bro Science“ and myself and a few other sleepless individuals have been running our own tests
What changed over 14 nights:
Sleep onset got way faster I did go from 20-30 min staring at my ceiling to around 10. The 5-minute peak plasma time for nasal delivery tracks with this. I also did not get into those deep night ADHD rabbit holes or endless Claude code loops and definitely not the Epstein conspiracy theories because… well… god those are horrible. Also more on the current Nasal “ADHD” experiment I’m conducting in a few weeks here if you guys are interested.
Fewer 3-4am wakeups. That was my biggest problem before. Can’t say it fixed it completely but I went from waking up 4-5 nights a week to maybe 1-2.
No morning fog. This was the biggest difference. 10mg pills left me groggy for the first hour every day I was already looking forward to my Celsius or 2 shots of espresso next to my bed as soon as the rooster cocked his doodle do. Spray? I’d open my eyes and just be up. 100mcg clears your system fast. 10mg does not.
The other two ingredients — honest assessment.
DSIP.
Discovered in 1977. Every human study used IV at around 1,500mcg. This spray has 20mcg. 1/75th of what was tested. Independent labs couldn’t replicate the original positive results. No identified gene or receptor for it. At this dose in this format I’d be surprised if it’s doing much but it definitely was not placebo because my sleep score in my whoop also went up as well as my REM.
GABA.
Oral GABA doesn’t cross the blood-brain barrier well. Nasal theoretically bypasses the BBB through olfactory nerves. Total published evidence for intranasal GABA? One mouse study from 1998 here Showed effects at low doses. 10mg nasal is plausible but calling the evidence thin is generous.
My Final Thoughts.
The melatonin component is carrying this if you base it of some old studies. Low dose + nasal delivery + physiological dosing instead of receptor-bombing. GABA and DSIP are speculative at best at these amounts. If the science on those two catches up I’ll update this but right now I can’t separate their effects from the melatonin. But if I were to say myself off my study yes this does work and it really opened my eyes into exploring the deep rabbit hole of what IN (intranasal) compounds I should try next. So more updates coming soon.
Wrote up everything I dug into on the pharmacokinetics behind each compound, what the studies actually say vs what’s speculation, and the full protocol details on BodyHackGuide if anyone wants the deep dive:
🔗 The Nasal Sleep Stack Protocol — GABA, Melatonin, and DSIP Explained
Even if you skip nasal sprays entirely try to drop your oral dose to 0.3-0.5mg taken 2-3 hours before bed. MIT says you’ll sleep the same or better. Throw the 10mg pills away let me know if you have tried this? or what nasal administered compound you have experience with even if it’s something you tried at house party in 2008.
Spray is the REM Spray from Adera State. 100 sprays per bottle.
For research and educational purposes only.
Written By a Human Formated by AI 🤖
🧬 r/BodyHackGuide