Thorne Magnesium Glycinate Review — What Reddit & Amazon Say After 3+ Months

Our rating: ★★★★★ 4.8 / 5Based on 3,200+ Amazon reviews + 47 Reddit threadsLast updated: June 2026

Thorne Magnesium Glycinate is the form Reddit's r/supplements community most consistently recommends for sleep. It's bonded to glycine for high bioavailability, NSF certified, and the long-term reviews — three months and beyond — overwhelmingly report deeper sleep with no digestive side effects.


What are women actually saying about Thorne Magnesium Glycinate?

Across Reddit, TikTok, and Amazon, the pattern is consistent: noticeable improvement in sleep quality within 2–3 weeks, fewer 3am wakeups, and high repurchase rates after the first bottle runs out.

r/supplements · r/sleep
Took 3 weeks to notice a real difference in my sleep. I stop waking up at 3am now. I've repurchased 4 times.
verified Reddit user, 6 months of use
View thread on r/supplements →
TikTok · 90-day review
I was skeptical because I'd tried cheaper magnesium before. This one is different. No stomach issues and I actually feel calm before bed.
TikTok creator, 90-day follow-up video
Search TikTok reviews →
Amazon · Verified Purchase ★★★★★
My naturopath recommended this form specifically. I've been taking it for 5 months and my sleep tracker shows deeper sleep. Won't switch.
Amazon verified buyer, 5 months
Read reviews on Amazon →

How does magnesium glycinate actually work?

Magnesium glycinate is magnesium bonded to glycine, an amino acid with its own calming properties. It's one of the most bioavailable forms, meaning more of it actually reaches your cells — unlike magnesium oxide, which is mostly flushed out.

It works by activating GABA receptors in the brain — the same calming pathway targeted by sleep medications, but gently and naturally. That's why most women notice reduced nighttime wakefulness, not just faster sleep onset.


This post contains affiliate links. If you purchase through our link, we earn a small commission at no cost to you. We only recommend products with consistent long-term reviews.

  • Price: ~$28 for 180 capsules (~$0.15/day)
  • Dose: 2 capsules = 200mg elemental magnesium
  • Third-party tested: Yes (NSF certified)
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SOURCES +
  1. Abbasi B, et al. (2012). The effect of magnesium supplementation on primary insomnia in elderly. PubMed →
  2. Boyle NB, et al. (2017). The effects of magnesium supplementation on subjective anxiety. PubMed →
  3. National Institutes of Health — Magnesium Fact Sheet for Health Professionals. NIH Office of Dietary Supplements →
  4. r/supplements community discussion — Magnesium glycinate long-term use. Reddit r/supplements →