Head to head · Sleep & Stress
Life Extension Neuro-Mag Magnesium L-Threonate vs OLLY Sleep Gummies (Blackberry Zen)
OLLY scores higher overall (7.7 vs 7.2 out of 10), mainly on quality & purity.
Updated September 2026 from our full reviews · How we score
A best-selling Magtein supplement at the full 2 g trial dose. Sleep evidence is early and industry-funded, and at about $1 a day it costs far more than other magnesium.
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NSF-certified gummy with a sensible 3 mg melatonin dose, but its L-theanine (50 mg) and botanicals are well below the amounts used in research.
We may earn a commission when you buy through these links — it never affects our scores. How we make money
We may earn a commission when you buy through these links — it never affects our scores. How we make money
The short answer
Choose Life Extension if…
- People curious about Magtein for sleep and focus
- Those who get loose stools from other magnesium forms
- Shoppers who want a vegetarian, single-ingredient capsule
Choose OLLY if…
- People who prefer a gummy to a pill
- Shoppers who want NSF-certified label accuracy
- Occasional sleeplessness and travel
- You care most about quality & purity
- You want the lower cost per serving ($0.56)
Side by side
| Neuro-Mag Magnesium L-Threonate | Sleep Gummies (Blackberry Zen) | |
|---|---|---|
| Our score | 7.2 / 10 | 7.7 / 10 |
| Efficacy (30%) | 6.8 | 7.0 |
| Quality & Purity (25%) | 7.5 | 8.6 |
| Value (20%) | 6.5 | 6.8 |
| Experience (15%) | 8.0 | 8.2 |
| Transparency (10%) | 8.2 | 8.3 |
| Form | Capsule | Gummy |
| Serving | 3 vegetarian capsules30 servings per container | 2 gummies25 servings per container |
| Price per serving | $1.05 | $0.56 |
| Testing & certifications | cGMP facilityThird-party tested | NSF Contents Certified |
| Dietary | Vegetarian, Gluten-free, Non-GMO | Gluten-free |
| Key ingredients |
|
|
| Flavors | — | 2 (Blackberry Zen, Strawberry Sunset) |
| Creator video reviews | 5 | 5 |
Pros and cons
Neuro-Mag Magnesium L-Threonate
- 2,000 mg Magtein per serving, the same daily dose used in the most recent clinical trial
- Single-ingredient formula with a full, simple label
- 144 mg elemental magnesium stays well below the 350 mg supplemental upper limit
- Vegetarian, gluten-free and non-GMO capsules
- buyers frequently report better sleep and a calmer mind
- Sleep evidence rests on two small, industry-funded trials with mixed objective results
- About $1.05 per serving at list price, several times the cost of magnesium glycinate
- Three capsules per day, and some buyers report cramps
- No NSF, USP or similar product certification; certificates of analysis only on request
Sleep Gummies (Blackberry Zen)
- 3 mg melatonin per serving, within the range sleep experts commonly suggest
- Listed in NSF's certified dietary supplement database for label accuracy and contaminants
- Every ingredient amount disclosed, with no proprietary blend
- Buyers and TikTok reviewers consistently praise the blackberry flavor and easy chew
- L-theanine (50 mg) and botanicals (16-17 mg each) are far below studied doses
- About $0.56 per serving at the brand's list price, roughly five times a basic melatonin tablet
- Some buyers report nausea or headaches, and buyers are split on value for money
- Contains gelatin and 2 g added sugar per serving
Our verdicts
Neuro-Mag Magnesium L-Threonate
Neuro-Mag is a clean, accurately dosed version of Magtein from an established brand, and many buyers say it helps them sleep and think more clearly. The research behind magnesium L-threonate for sleep is still small and industry-funded, so we see it as a reasonable but expensive experiment rather than a proven sleep aid. If you simply want more magnesium, cheaper forms deliver more of the mineral per dollar.
Full review
Sleep Gummies (Blackberry Zen)
OLLY Sleep is a well-made, third-party certified melatonin gummy with a reasonable 3 mg dose, and most buyers find it pleasant and effective. The L-theanine and herbal extracts are too small to add much, so you are mainly paying for melatonin in a tasty, convenient form at several times the price of a basic tablet.
Full review
What creators say
Questions people ask
Is Life Extension better than OLLY?
Which is cheaper per serving, Life Extension or OLLY?
Are Life Extension and OLLY third-party tested?
Who should choose Life Extension over OLLY?
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