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NutraBio Caff Plus — 150mg Dual-Source Caffeine with 200mg L-Theanine

Name: NutraBio Caff Plus — 150mg Dual-Source Caffeine with 200mg L-Theanine
Brand: NutraBio
SKU: 4990829086
Price: 17.99 USD
Availability: InStock

1 review

NutraBio Caff Plus150mg of caffeine from two sources, paired with 200mg of TheaPure L-theanine. One capsule, fully disclosed label, nothing else in it.This is the simplest useful product on our shelf, and the ratio it uses is not accidental.The 1:2 ratio is the entire pointCaffeine and L-theanine are one of the few genuinely well-supported combinations in supplements, and the ratio matters.Caffeine works by blocking adenosine receptors. Adenosine builds up through the day and makes you feel tired; blocking it produces alertness. But caffeine also increases activity in ways that produce the familiar jitteriness, elevated heart rate and mental scatter — you are alert, but not necessarily useful.L-theanine is an amino acid found almost exclusively in tea leaves. It increases alpha brain wave activity, the pattern associated with relaxed, wakeful focus, and it does this without sedation. You do not get drowsy.Together, theanine takes the edge off caffeine while leaving the alertness intact. Research on this combination consistently uses roughly a 1:2 ratio of caffeine to theanine — and Caff Plus delivers exactly that, 150mg to 200mg, rather than the 1:1 that many competing products use.This is also, incidentally, why tea feels different from coffee at similar caffeine doses. Tea naturally contains theanine; coffee does not.Two caffeine sources, deliberatelyThe 150mg comes from two forms rather than one: PurCaf — an organic caffeine extract from green coffee beans, standardised to 95% caffeine. Fast-acting Di-caffeine malate — caffeine bonded to malic acid, which is roughly 73 to 75% caffeine by weight. The malate bond slows the release, extending the curve and reducing the stomach discomfort caffeine anhydrous can causeA fast source and a slower one means a flatter curve rather than a spike and drop. Same principle as the multi-source blend on Rule One Burn, executed more simply.Why 150mg is a well-chosen doseMost caffeine pills come in at 200mg, which is a lot for a fixed-dose capsule you cannot divide.150mg is closer to a strong cup of coffee, which makes it far more usable — you can take one in the morning and a second in the early afternoon and still sit well under the 400mg daily figure the FDA cites for healthy adults. A 200mg pill twice puts you at your limit before anything else.It also leaves room for the caffeine you are already getting from coffee, which most people forget to count.Specs Total caffeine150mg SourcesPurCaf organic green coffee bean extract, di-caffeine malate L-Theanine200mg (TheaPure) Ratio1:1.33 caffeine to theanine Serving1 capsule, 1–2 times daily Proprietary blendsNone. Full label disclosureWhy this beats a pre-workout for a lot of peopleThis is worth thinking about if you currently take a pre-workout for the energy rather than the pumps.A 350mg pre-workout gives you caffeine, beta-alanine tingles, citrulline you may not need, and a flavour system, at a price reflecting all of it. If what you actually want is to feel alert and focused, this does that at a controlled dose with nothing else attached — and it costs a fraction as much per serving.It is also stackable in a way a pre-workout is not. You can take it at your desk at 9am and it does not commit you to anything at 5pm.How to take it One capsule, once or twice daily. Not after early afternoon. Caffeine's half-life is five to six hours, so 150mg at 3pm still leaves around 75mg at 9pm. Count your coffee. This is 150mg on top of whatever you already drink. Not with a pre-workout unless you have added the totals up. Consider cycling. Caffeine tolerance builds. Periodic breaks restore the effect.Who this is for Anyone who finds caffeine makes them jittery or scattered — the theanine is the specific fix People who want energy without a scoop, a shaker or a flavour Anyone taking a pre-workout purely for the caffeine Desk work, studying, driving, early starts People who want a controlled, known dose rather than guessing at a coffee Anyone who wants a fully disclosed label with two ingredientsWho this is not forIf you want pumps, endurance or a full pre-workout experience, this is caffeine and theanine only. No citrulline, no beta-alanine.If you are caffeine sensitive, 150mg is still a real dose.Not in the evening, and not for anyone with cardiovascular concerns without speaking to their doctor.Not for anyone under 18, pregnant or nursing.And an honest note: plain caffeine tablets are cheaper. What you are paying extra for here is the theanine, the dual-source blend and the disclosed trademarked ingredients. If jitteriness has never been a problem for you, cheap caffeine does the alertness job. If it has, the theanine is the entire reason to buy this and it is worth it.Stack it with: nothing caffeinated. It works alongside creatine, protein or anything non-stimulant.Frequently asked questionsWhat does L-theanine do with caffeine?Theanine increases alpha brain wave activity, associated with relaxed focus, without causing drowsiness. Paired with caffeine it reduces jitteriness and mental scatter while leaving the alertness intact.Why 200mg theanine to 150mg caffeine?Research on the combination consistently uses roughly a 1:2 caffeine-to-theanine ratio. Many competing products use 1:1, which is less theanine than the studies employed.Why does tea feel different from coffee?Tea naturally contains L-theanine and coffee does not. That is essentially what this product recreates in capsule form.What is di-caffeine malate?Caffeine bonded to malic acid, around 73 to 75% caffeine by weight. The bond slows release, extending the curve and reducing the stomach discomfort caffeine anhydrous can cause.Is 150mg a lot?It is roughly a strong cup of coffee — deliberately less than the 200mg most caffeine pills use, so you can take two in a day and stay well under the commonly cited 400mg ceiling.Can I take it with a pre-workout?Only after adding the caffeine together. For many people this replaces a pre-workout rather than joining it.When should I stop taking it during the day?Early afternoon at the latest. Caffeine's half-life is five to six hours.Is it better than plain caffeine pills?Only if jitteriness is a problem for you. If it is, the theanine is genuinely worth the difference. If it is not, plain caffeine is cheaper and does the alertness job. Read more

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PRODUCT LABEL

NutraBio Caff Plus

150mg of caffeine from two sources, paired with 200mg of TheaPure L-theanine. One capsule, fully disclosed label, nothing else in it.

This is the simplest useful product on our shelf, and the ratio it uses is not accidental.

The 1:2 ratio is the entire point

Caffeine and L-theanine are one of the few genuinely well-supported combinations in supplements, and the ratio matters.

Caffeine works by blocking adenosine receptors. Adenosine builds up through the day and makes you feel tired; blocking it produces alertness. But caffeine also increases activity in ways that produce the familiar jitteriness, elevated heart rate and mental scatter — you are alert, but not necessarily useful.

L-theanine is an amino acid found almost exclusively in tea leaves. It increases alpha brain wave activity, the pattern associated with relaxed, wakeful focus, and it does this without sedation. You do not get drowsy.

Together, theanine takes the edge off caffeine while leaving the alertness intact. Research on this combination consistently uses roughly a 1:2 ratio of caffeine to theanine — and Caff Plus delivers exactly that, 150mg to 200mg, rather than the 1:1 that many competing products use.

This is also, incidentally, why tea feels different from coffee at similar caffeine doses. Tea naturally contains theanine; coffee does not.

Two caffeine sources, deliberately

The 150mg comes from two forms rather than one:

PurCaf — an organic caffeine extract from green coffee beans, standardised to 95% caffeine. Fast-acting
Di-caffeine malate — caffeine bonded to malic acid, which is roughly 73 to 75% caffeine by weight. The malate bond slows the release, extending the curve and reducing the stomach discomfort caffeine anhydrous can cause

A fast source and a slower one means a flatter curve rather than a spike and drop. Same principle as the multi-source blend on Rule One Burn, executed more simply.

Why 150mg is a well-chosen dose

Most caffeine pills come in at 200mg, which is a lot for a fixed-dose capsule you cannot divide.

150mg is closer to a strong cup of coffee, which makes it far more usable — you can take one in the morning and a second in the early afternoon and still sit well under the 400mg daily figure the FDA cites for healthy adults. A 200mg pill twice puts you at your limit before anything else.

It also leaves room for the caffeine you are already getting from coffee, which most people forget to count.

Specs

Total caffeine	150mg
Sources	PurCaf organic green coffee bean extract, di-caffeine malate
L-Theanine	200mg (TheaPure)
Ratio	1:1.33 caffeine to theanine
Serving	1 capsule, 1–2 times daily
Proprietary blends	None. Full label disclosure

Why this beats a pre-workout for a lot of people

This is worth thinking about if you currently take a pre-workout for the energy rather than the pumps.

A 350mg pre-workout gives you caffeine, beta-alanine tingles, citrulline you may not need, and a flavour system, at a price reflecting all of it. If what you actually want is to feel alert and focused, this does that at a controlled dose with nothing else attached — and it costs a fraction as much per serving.

It is also stackable in a way a pre-workout is not. You can take it at your desk at 9am and it does not commit you to anything at 5pm.

How to take it

One capsule, once or twice daily.
Not after early afternoon. Caffeine's half-life is five to six hours, so 150mg at 3pm still leaves around 75mg at 9pm.
Count your coffee. This is 150mg on top of whatever you already drink.
Not with a pre-workout unless you have added the totals up.
Consider cycling. Caffeine tolerance builds. Periodic breaks restore the effect.

Who this is for

Anyone who finds caffeine makes them jittery or scattered — the theanine is the specific fix
People who want energy without a scoop, a shaker or a flavour
Anyone taking a pre-workout purely for the caffeine
Desk work, studying, driving, early starts
People who want a controlled, known dose rather than guessing at a coffee
Anyone who wants a fully disclosed label with two ingredients

Who this is not for

If you want pumps, endurance or a full pre-workout experience, this is caffeine and theanine only. No citrulline, no beta-alanine.

If you are caffeine sensitive, 150mg is still a real dose.

Not in the evening, and not for anyone with cardiovascular concerns without speaking to their doctor.

Not for anyone under 18, pregnant or nursing.

And an honest note: plain caffeine tablets are cheaper. What you are paying extra for here is the theanine, the dual-source blend and the disclosed trademarked ingredients. If jitteriness has never been a problem for you, cheap caffeine does the alertness job. If it has, the theanine is the entire reason to buy this and it is worth it.

Stack it with: nothing caffeinated. It works alongside creatine, protein or anything non-stimulant.

Frequently asked questions

What does L-theanine do with caffeine?
Theanine increases alpha brain wave activity, associated with relaxed focus, without causing drowsiness. Paired with caffeine it reduces jitteriness and mental scatter while leaving the alertness intact.

Why 200mg theanine to 150mg caffeine?
Research on the combination consistently uses roughly a 1:2 caffeine-to-theanine ratio. Many competing products use 1:1, which is less theanine than the studies employed.

Why does tea feel different from coffee?
Tea naturally contains L-theanine and coffee does not. That is essentially what this product recreates in capsule form.

What is di-caffeine malate?
Caffeine bonded to malic acid, around 73 to 75% caffeine by weight. The bond slows release, extending the curve and reducing the stomach discomfort caffeine anhydrous can cause.

Is 150mg a lot?
It is roughly a strong cup of coffee — deliberately less than the 200mg most caffeine pills use, so you can take two in a day and stay well under the commonly cited 400mg ceiling.

Can I take it with a pre-workout?
Only after adding the caffeine together. For many people this replaces a pre-workout rather than joining it.

When should I stop taking it during the day?
Early afternoon at the latest. Caffeine's half-life is five to six hours.

Is it better than plain caffeine pills?
Only if jitteriness is a problem for you. If it is, the theanine is genuinely worth the difference. If it is not, plain caffeine is cheaper and does the alertness job.