SKU: 88654884122

NutraBio | L-Tyrosine | 300 Servings

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Description

NutraBio | L-Tyrosine | 300 ServingsStraight L Tyrosine. Easy 500mg scoops. No junk added. NutraBio L Tyrosine Powder keeps it simple: want to control your tyrosine intake without stimulants, fillers, hidden blends, or random add ons? This isn't some hyped pre workoutit's pure L Tyrosine powder at 500mg per scoop, easy to dose and stack with caffeine, pre workouts, nootropics, or solo. L Tyrosine is a non essential amino acidmeaning your body can make itthat turns into key brain

Straight L-Tyrosine. Easy 500mg scoops. No junk added.

NutraBio L-Tyrosine Powder keeps it simple: want to control your tyrosine intake without stimulants, fillers, hidden blends, or random add-ons? This isn't some hyped pre-workout—it's pure L-Tyrosine powder at 500mg per scoop, easy to dose and stack with caffeine, pre-workouts, nootropics, or solo.

L-Tyrosine is a non-essential amino acid—meaning your body can make it—that turns into key brain chemicals like dopamine and norepinephrine. Basically, it gives your body the building blocks for staying alert, handling stress, and staying on task. You won't feel a quick energy buzz like from stimulants. Instead, you'll notice steadier focus when stress, lack of sleep, workout fatigue, or long mental tasks usually drag you down. It works by feeding into L-DOPA and dopamine production, which is why it's common in focus and high-performance pre-workouts.

Research on this is solid but depends on the situation. In healthy folks, 2g has helped with decisions under mental pressure and calmed stress responses in controlled studies. Bigger doses like 10g have improved body temp control and blood vessel responses in cold for older people. But not every study wins: 150 mg/kg didn't boost cycling endurance, mood, or how hard it felt for trained riders. Let's be real—tyrosine isn't a magic boost for everything. It's great for focus and stress, not a surefire endurance aid.

At 500mg per scoop, it's a good starting point. The powder lets you adjust up if needed, and with 300 servings, it's a solid value for stacking or daily use.

NutraBio L-Tyrosine by NutraBio contains 500mg L-Tyrosine, a clinical dose for muscle recovery and growth.

Key Highlights

  • 500mg L-Tyrosine per scoop lets you dial in your dose exactly—no fixed servings locking you in. That's handy since you might want less for stacking or more for tough mental days, maybe with caffeine.
  • All one ingredient means no hidden blends or hype. You see exactly what's in it, which is rare in a world of skimpy nootropic mixes.
  • L-Tyrosine builds into brain chemicals like dopamine and norepinephrine. In everyday terms, it's about sharper focus, better task sticking, and handling stress mentally, not a big energy kick.
  • Powder form beats capsules for flexibility. One scoop for 500mg, two for 1g, or tweak it if your pre-workout already has some tyrosine to avoid overdoing it.
  • Studies on tyrosine vary by situation, and this product keeps it real without overpromising. It shines for mental load and stress, but endurance results are hit or miss—that's why a pure standalone like this fits targeted use.
  • 2g L-Tyrosine can help with choices and stress signs under brain strain in healthy people. One 500mg scoop is lighter, but powder makes ramping up simple when it makes sense.
  • Big doses like 10g have been tested for staying warm in cold for older folks. Not everyone needs that much, but it shows tyrosine gets real study beyond tiny amounts in blends.
  • No flavors, sweeteners, or fillers means it mixes clean with coffee, nootropics, pre-workouts, or intra drinks. No clashing tastes or extras messing up your setup.

NutraBio L-Tyrosine by NutraBio contains 500mg L-Tyrosine, a clinical dose for muscle recovery and growth.

Who Is This For?

  • Students and desk jockeys with long brain-draining hours who want a simple focus add to coffee or solo. L-Tyrosine backs dopamine and norepinephrine paths, ideal for stressful studying, talks, deadlines, and tiring mental days.
  • Pre-workout customizers who hate locked nootropic blends. This gives 500mg standalone L-Tyrosine per scoop to boost focus in pump, stim, or basic caffeine setups without extras you skip.
  • Early risers hitting the gym before fully awake. Not a stim, but mixes with caffeine for a sharper training mindset, no sugars, flavors, or bonus ingredients.
  • Shift workers and stressed pros needing mental steady under tiredness. As a precursor for those brain chems, it's spot-on when stress and sleep mess with sharpness.
  • Simple-supplement fans picking single ingredients over mystery mixes. Exact dosing, clear labels, and tweaks by weight, timing, or stack make it user-friendly.
  • Athletes on caffeine wanting smarter focus. Caffeine ups those chems, tyrosine supplies them—clean add for sustained performance over more stims.

How to Use

Begin with 1 scoop for 500mg L-Tyrosine to see how you feel. If you're used to it or want more, 2 scoops hit 1g with stack room. Take 30-60 minutes before workouts, studying, long drives, or brain-heavy stuff where focus slips under pressure. Mix in water, coffee, tea, or unflavored pre-stack; shaker's best, but stirring works for small amounts. Skip big meals nearby for smoother absorb and timing. Stim-free, so it goes great with caffeine, nootropics, or pump pres needing focus. No forced cycles since it doesn't build up like creatine or beta-alanine. Keep it sealed, cool, dry, and scoop clean for easy flow. If on thyroid meds, MAO inhibitors, or dealing with neuro/psych stuff, talk to your doc first.

What to Expect

First 0-10 minutes? Usually nothing big, especially in water—no rush here. By 20-45 minutes, you might feel a clean mental readiness, more so with caffeine or before tough tasks. Peak is subtle: less brain fog, better sticking to tasks, composed focus without hype. Over 60-120 minutes of work or training, it's about consistent concentration, not ups and downs. Days 1-7: figure your dose and best stack, since it varies person to person. Weeks 2-4: no buildup like creatine, but you'll nail where it fits—pre-gym, with coffee, or for stress days.

Key Ingredients

  • L-Tyrosine — 500mg — Supports cleaner focus under stress and mental demand

NutraBio L-Tyrosine by NutraBio contains 500mg L-Tyrosine, a clinical dose for muscle recovery and growth.

Frequently Asked Questions

How much L-Tyrosine is in each serving?

Each scoop provides 500mg of pure L-Tyrosine. Because this is a standalone powder, you can also use 2 scoops for a 1g serving if that better fits your routine.

Is NutraBio L-Tyrosine Powder stimulant-free?

Yes. This product contains L-Tyrosine only and no caffeine or other stimulants. It is often stacked with caffeine, but the powder itself is completely stim-free.

What does L-Tyrosine actually do?

L-Tyrosine is a precursor to catecholamine neurotransmitters such as dopamine and norepinephrine. That makes it most relevant for focus, mental performance under stress, and cleaner task engagement rather than for a dramatic energy rush.

Is 500mg a high dose of L-Tyrosine?

500mg is a conservative, flexible starting dose rather than an aggressive research-level dose. Some human studies use gram-level intakes, which is why the powder format is valuable: you can customize your serving instead of being locked into a fixed capsule amount.

When should I take this product?

Most users take it 30 to 60 minutes before training, studying, or other mentally demanding tasks. It also works well added to coffee or a pre-workout if you want to combine tyrosine with caffeine.

Can I stack this with coffee or a pre-workout?

Yes, and that is one of the best use cases for a standalone tyrosine powder. Caffeine increases catecholamine activity, while L-Tyrosine provides precursor support for catecholamine synthesis, making the stack mechanically logical for focus.

Does this product contain any fillers, sweeteners, or flavors?

No. The product is listed as containing absolutely no inactive ingredients. That makes it especially useful for users who want a clean stack without flavor conflicts or unnecessary excipients.

Will I feel this immediately like caffeine?

Usually not in the same way. L-Tyrosine tends to feel subtler and cleaner, often showing up as better mental steadiness or less cognitive drag rather than a noticeable stimulant hit.

Do I need to cycle L-Tyrosine?

There is no standard requirement to cycle standalone L-Tyrosine. It does not rely on saturation like creatine or beta-alanine, so most users simply take it when they want targeted support.

Who should be cautious with L-Tyrosine?

Anyone pregnant or nursing, under 18, taking MAO inhibitors, managing thyroid conditions, or under care for neurological or psychiatric conditions should speak with a healthcare professional first. Because tyrosine interacts with important neurotransmitter and thyroid-related pathways, medical context matters.

Shipping Notes
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SKU: 88654884122

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4.0 ★★★★★
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mike
Cuba, US
★★★★★ 5
Super soft
Color: Gray, Size: King
Nice and soft. Love to snuggle under. Warm but not too hot. Size perfect for my bed. Will definitely buy again.
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Reviewed in the United States on January 13, 2026
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patricia aulabaugh
New York, US
★★★★★ 5
Super soft
Color: Cypress, Size: King
Super soft and warm, very nice to sleep with
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Reviewed in the United States on January 27, 2026
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Verified Purchase
MunchkinsMomsez
Charlottesville, US
★★★★★ 3
No cat claws allowed!
Color: Cypress, Size: Twin, Color: Cypress, Size: Twin
The quality of this set isn't the best. It you have a cat, a sharp claw or two will do visible damage! I actually clipped the loose threads off days ago, but there's still that double track of claw marks that will always be there. The pillow sham is also huuuge and looks awkward on a twin bed. It you have a large pillow it should be ok. The pillow sham isn't sewn together properly either, the fabric is bunched up where the seams meet. The comforter is pretty lightweight, so I will definitely be needing another blanket (or two!) with this one for winter. However, the set IS very soft, and it IS nice and cozy. The color in person is ok/does not look like photo advertised, as is, it would probably look nicer on a better quality set. The three stars is for comfort only. I will update this review after washing it a couple of times. Update: not even a month, and the fabric has ripped where the claw mark is. But, I have decided to keep it after all, if only for the comfort. Still not happy with the cost vs the quality. Latest update: added last 2 photos to show progression of wear. It does wash up well enough all considered. 3/31/24 Tears in the material (non-sherpa side) continue to appear. If you apply any type of tension to the fabric while making the bed, or just trying to pull the comforter over you when you roll over, you can hear the fabric tearing. I have found 6 tears to date.
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Reviewed in the United States on October 3, 2023
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John cromwell
Whiting, US
★★★★★ 5
Finally we BOTH can sleep comfy!
Color: 08 - Black, Size: Queen
So for years my boyfriend has always liked “jersey sheets” or “tee shirt” sheets or sheets made of flannel. He says he doesn’t like the feeling of cold “silky” feeling sheets as he’s always cold. I’m opposite and am always hot, and anytime we stayed in a nice hotel I looked forward to being able to sleep on cooler, taught, soft sheets for a couple of nights. I was able to deal with our old sheets but the issue we both hated was after awhile any sheet we got would get pilling. We even splurged and got a $60 flannel sheet which did the same thing forcing me to shave off these little annoying fuzz balls that make it feels like there is thousands of crumbs on the sheets. I also would wash our bedding once a week because the Jersey sheets seemed to “grow” as we move around in bed making it so the sheet was not taught and super annoying to lay on. The day I would wash them they would be comfortable but ultimately by the end of the week they would be almost hanging off our mattress. I ordered these sheets on a whim and got them the same day and immediately just threw out the jersey sheet and put this on (I didn’t even wash it, I know it’s gross but I was desperate for a comfy nights sleep and they came around 8pm) when I put them on I realized how soft and comfortable they felt. I also liked how the pillow cases are larger than most pillow cases that I have had in the past. We’ve been using these sheets for about a week and I love how I don’t wake up with my pillow popping out of the case anymore. The sheets have loosed ever so slightly since a week of sleeping but still are really taught and comfortable. They are cooler than flannel or fabric sheets and are initially cold when you first lay on them but I wouldn’t consider them “cooling” but they keep me from feeing extremely hot. They are way better than I ever would have expected for the price. I look forward to laying on them at the end of each day, even my boyfriend laid in bed the day I got them and said “wow I didn’t think I would like sheets like this, these are so soft!” And fell asleep immediately. We ended up ordering a second set in grey and the color is pretty. I still have yet to wash them, I usually use 2 tide pods when washing the bedding but I might get some fabric softener (as I hear it helps with pilling) to prevent the possibility of having that happen to these sheets in the future. I am hoping they hold up well after the wash and longer use. If they start to pill after wash, I will come back and update my review. Until then, I would highly recommend these sheets for the quality and the price point that they are offered at. Honestly, at this point even if they pill months from now I probably wouldn’t even be upset as long as they stay the same price I would just buy another set as they are just that comfortable and soft. UPDATE: So it has been about 3 months since I have purchase and used these sheets. They are still as soft as the day I first put them on. I’ve been washing them bi-weekly along with my comforter and pillowcases. I wash them with warm water using a combination of tide pods and added Downy fabric softener. They say to hang dry them in the description but I have been putting them in the dryer on medium and have been taking them out after around 20-25 minutes, they seem to dry extremely quickly. They have yet to have absolutely any pilling and also have not shrunk or stretched. Also I have a cat that is very active and also sleeps with me who enjoys kneading on my bed and I haven’t even noticed any signs of wear what so ever to the eye or to the feel. I highly recommend these sheets. I still have yet to even open the second set I purchased!
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Reviewed in the United States on January 10, 2024
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Verified Purchase
Joy Joy
Fort Morgan, US
★★★★★ 5
Happy With Our Purchase
Color: 07 - Charcoal, Size: King, Color: 07 - Charcoal, Size: King
When we opened the package the sheets were soft. We wash everything before we use it, so in these went. The sheets held nicely through the washing machine, the edges stayed sewn up and the sheets are still fluffy. The sheets fit nicely on our bed and have a nice cooling effect in this 80-degree weather. We think these sheets were a quality purchase that was affordable.
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Reviewed in the United States on June 6, 2026

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