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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PrettyInPink
Lowell, US
★★★★★ 5
So comfortable but only lasted 5 months…
Size: 9, Color: Sea Salt, Size: 9, Color: Sea Salt
I was hesitant to buy these without being able to try them on, but I’m so glad I did! They are incredibly comfortable. I am on my feet for a large portion of the day as a school principal and these feel amazing all day. They’re very adjustable so if you have feet that swell (or just fatter feet like me) these should be able to accommodate you. They are clunky but really cute! They’re also easy to clean. I’ve worn mine just about every day since I received them and can easily wipe them down with a wet paper towel to make them look new. They will occasionally trip you up if you’re not careful, the same way Ugg boots can do, but that hasn’t been a big problem for me. They’re very lightweight and versatile. Love them! Update: I probably just wore these too hard because today I was walking the school hallway and the shoe just snapped. One of the sides was completely unattached and within 30 minutes they were only on my foot by one strap. Super disappointed!! But I loved them enough that I ordered another pair to get me through until boot weather.
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Pawtucket, US
★★★★★ 4
Great shoe, room for improvement
Size: 7, Color: Bison Brown
I wore these to a 2 day music festival and my feet were so comfortable dancing and walking all day. Got a little sore by the end of the night, but the only thing that would have been more comfortable would be athletic sneakers so that pretty good for such a cool looking sandal. Sizing is off tho. I am a 7-7.5, and I ordered a 7. Length wise theyre good, but maybe I have skinny feet because I had to strap the 3 Velcro straps as tight as they could go, especially the heel one. Maybe I would have been better going down a size because I want to have my feet feel super snug and secure in sandals, especially if I’m dancing. But overall great sandals and honestly I’d buy them again
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Nicky
Omaha, US
★★★★★ 1
These sandals are massive
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These sandals are super bulky and fit on the larger size. I would recommend tou size down 1/2 to 1 size.
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Sarah G.
Birmingham, US
★★★★★ 5
comfy!
Size: 9, Color: Bison Brown
These are my favorite summer sandal. Super comfortable and so versatile with any style of clothing.
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Nathaniel
Omaha, US
★★★★★ 5
Stylish comfort you can wear all day!
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My wife has been been wearing the UGG Goldenstar Sandals for a few weeks now, and they’ve totally exceeded expectations. These sandals strike the perfect balance between comfort and style, and she’s gotten so many compliments on them! Pros: • Super Comfortable: The cushioned footbed feels like walking on clouds. Perfect for long days on your feet or casual outings. • Lightweight: Unlike some chunky sandals, these are surprisingly light but still feel supportive and well-made. • Adjustable Straps: The Velcro straps make it easy to get the perfect fit, and they’re great for swelling feet after a long day. • Versatile Style: They look great with everything—from jeans and shorts to casual dresses. • High-Quality Materials: Typical UGG quality—durable suede and solid construction. Cons: • Suede Requires Care: The upper is suede, so they’re not ideal for wet conditions and do need a bit of maintenance to keep looking fresh. • Pricey: They’re on the higher end cost-wise, but I’d say the comfort and quality justify the price. I’m really happy with these sandals. They’re a perfect mix of fashion and function, and I’d definitely buy them again in another color!
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Reviewed in the United States on April 9, 2025

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