- Brain Health Formula - A synergistic magnesium L-threonate powder blend with mushrooms and nootropics designed to help promote focus, attention, and cognitive performance while supporting long-term cognitive ability.*
- 2g Magtein Magnesium L-Threonate - Clinically studied for its ability to reach the brain, this unique form of magnesium powder helps support memory, executive function, and healthy cognitive aging for women experiencing perimenopause symptoms.*
- 200mg Lion’s Mane - Our magnesium supplement includes lion's mane, a neuro-supportive mushroom known for promoting mental stamina and focus, helping counter day-to-day cognitive fatigue.*
- 50mg Caffeine + 100mg L-Theanine Supplement - This balanced nootropic pairing supports cognitive speed, delivering smooth energy and focused concentration without the crash, ideal for morning focus or an afternoon boost.*
- Clean, Vegan, and Flavorful - Sugar-free, gluten-free, soy-free, and major allergen-free with a refreshing lemon flavor formulated for women optimizing cognitive performance and looking for daily mental wellness support.*


Marsha Lord –
Very little
It is small, it lasts for a week, but it seems to be good, even though I have only used it for a short while.
Ellain –
Great for Morning Focus Without the Heavy Coffee Feeling
I’ve really been enjoying this as part of my morning routine. The lemon flavor is light and refreshing, and it mixes easily with water without leaving a strong aftertaste.I especially like the combination of magnesium L-threonate, lion’s mane, L-theanine, and caffeine. It gives me a nice boost in focus and mental energy without feeling as strong or jittery as a typical cup of coffee. I feel more alert and able to concentrate when I have a busy day of work.The powder is also convenient and easy to take, so it’s much easier to stay consistent with it. Overall, I’m happy with it and would recommend it to anyone looking for a convenient morning drink to support focus and energy.
Scott –
lemon powder stirs clean, jar is mostly jar
stirred a scoop into a glass of cold tap water a few mornings this week, spoon only, no shaker. powder is fine and pale, floats for a second, then goes under after maybe ten seconds of stirring. no chalk sludge at the bottom of the glass when I finished, which is the whole test for a powder like this.taste is tart lemon up front with that sugar-free style sweetness behind it, then a faint mineral aftertaste that hangs around for a minute. drinkable straight. not something you’d sip for fun. in a taller glass with more water the flavor thins out and the aftertaste mostly goes away, so that’s how I’m taking it now.listing says 2g Magtein magnesium L-threonate per serving plus 200mg lion’s mane and a 50mg caffeine with 100mg L-theanine pairing. 50mg is roughly half a small coffee, so this is a morning scoop for me, not a bedtime magnesium. I’m not going to tell you it did anything for focus or memory after a few days, nobody can tell you that after a few days, and every one of those listing claims carries the little asterisk anyway.the jar is squat and heavy. listing puts it at 2.8 by 2.8 by 3.5 inches and 10.4 oz total for 3.2 oz of powder, so the container outweighs what’s inside it about two to one. looks like a candle on the counter. seal under the lid was intact and the scoop was buried in the powder, so plan on digging. haven’t counted scoops against the serving number on the label yet, the fill line isn’t deep.skip it if you’re caffeine sensitive or you want a magnesium to take at night, the caffeine is by design here. skip if lemon anything makes you wince. fine if you want a morning powder that stirs clean in plain water and you can live with a jar that’s mostly jar.
molly ken –
Just What I’ve Been Looking For
I had noticed that I had become more sensitive to caffeine in middle age, and coffee was making me jittery. So I’ve been looking for less potent options. I’ve tried half calf with adaptogenic mushrooms and black tea with adaptogenic mushrooms, but those still made me jittery. This Moon Juice is the perfect solution. The 50 mg of caffeine is just the right amount (about equal to a half-caf coffee) and the combination of the adaptogenic mushrooms and magnesium eliminated all jitters for me. It provided a more focused energy rather than a hyper energy. I expected the taste to be tolerable at best, but it was actually quite good. It’s a very subtle lemon flavor, not like having a lemonade. I would highly recommend this product to anyone having trouble metabolizing traditional coffee.
Karla4257Karla4257 –
False Advertising On The Amount You ReceiveFalse Advertising On The Amount You Receive
As a person who has suffered with severe ADHD for over 40 years, simply put, this product works! It does what it says it does. The only reason for the stars is because the bottle you receive is only filled up half way with product. So its false advertising on the bottle! Just place in a smaller bottle to reflect what you really receive. It cost nothing to be a honest retailer!
Laura FranzluebbersLaura Franzluebbers –
Actually tastes like lemonade?!Actually tastes like lemonade?!
I was pleasantly surprised by how good this tastes — and I’m extremely picky and sensitive to anything even slightly “off.” To me, it tastes exactly like lemonade: bright, tangy, and clean, with zero weird aftertaste. My husband didn’t agree (which shocked me, because he’s never picky about anything, but he hates mushrooms and knew this had them in it so I genuinely believe he tricked himself into hating it), but I personally loved it. The Moon Juice NEURO Magnesi‑Om powder mixes smoothly and gives a noticeable lift in energy and focus, making it easy to reach for during busy mornings or mid‑day slumps. The blend of magnesium L‑threonate, Lion’s Mane, and caffeine feels balanced rather than jittery, and I genuinely felt sharper after using it. I also take a daily Lion’s Mane supplement made from fruiting body extract. I do wish this product specified whether its Lion’s Mane comes from fruiting body.. since that’s the most effective form. The only drawbacks are the packaging and the PRICE: the jar arrives only half full, which looks disappointing even if the weight is correct. Still, the flavor and the mental boost make it worth keeping on hand, a refreshing, effective supplement that tastes far better than expected.
FlygirlFlygirl –
Pleasantly underwhelmedPleasantly underwhelmed
This was shipped promptly, but unfortunately the cap was cracked when it arrived. The product inside was still sealed, so it was a big deal. I will echo other reviewers: for the very high cost, I was shocked that it was only half full. I couldn’t justify purchasing this a second time, given that the price is for a full product but you only receive half of it. The marketing is great, though. It’s a sleek jar, simple branding, looks luxe, and even has the price tag to match!As for the taste, it recommends 1 tsp per 8 oz of water, but when I tried this ratio with room-temperature water, I might add, the product didn’t dissolve, and the granules sat in a pile at the bottom of my glass. Next time, I’ll try it with more water to see if that helps. The taste is like lemonade that isn’t sour but needs more flavor. Overall, glad I tried it, but I wouldn’t repurchase because of the price, the lack of dissolvability, and the taste, which underwhelmed me. I also didn’t notice any benefits like better focus, less tiredness, or increased relaxation.
Andrea WagnerAndrea Wagner –
Easy to useEasy to use
I really like this brand, and I’ve used their regular magnesi-om for a few years, this product though, I’m not so sure about. For starters, I’m not a big fan of the flavor, it’s like when you had a glass of lemonade, drank it, then filled the glass up with water…a hint of the flavor is there but it’s not delicious. Second, I haven’t noticed any difference in my focus or alertness, which surprised me because this brand is really good, maybe more time. And third, it’s so expensive.