What is Nutricost Caffeine with L-Theanine?
Nutricost Caffeine with L-Theanine is a daily focus support capsule that combines 100mg of caffeine anhydrous with 100mg of L-theanine in one serving. It is formulated to support alertness and concentration, with L-theanine included to complement caffeine and support a calm, focused state.
It is manufactured for Nutricost, a US-based supplement brand. It is made and quality tested in the USA with globally sourced ingredients, in a GMP-compliant facility, and is third-party tested, Non-GMO and gluten-free.
What type of supplement is this?
This is a focus support dietary supplement in capsule form, in the nootropic and daily-alertness category. Each one-capsule serving delivers two active ingredients — caffeine anhydrous and L-theanine — alongside standard capsule excipients, and is designed for healthy adults who want a measured way to support concentration.
The inactive ingredients are rice flour, a gelatin capsule shell, microcrystalline cellulose, magnesium stearate (vegetable source) and silica. Because the capsule shell is made from gelatin, this product is not suitable for vegans or strict vegetarians.
This is a dietary supplement, not a medicine. It is intended to support general health and wellbeing, not to diagnose, treat, cure, or prevent any disease.
How does caffeine with L-theanine support focus?
Caffeine works by temporarily blocking the brain signals that make you feel drowsy, which is why it supports wakefulness and alertness. L-theanine is an amino acid associated with a calm, settled state of mind. Combined one-to-one, the pair is intended to support attention and a composed, focused feeling.
Caffeine helps you feel switched on and ready to concentrate, while L-theanine is included to support a calm, focused state. Individual responses to caffeine and L-theanine vary from person to person.
What are the benefits of Nutricost Caffeine with L-Theanine?
The points below reflect the well-recognised roles of caffeine and L-theanine and the way this 100mg + 100mg formula is designed to be used.
- Supports wakefulness, alertness and concentration when needed
- Helps maintain mental focus during demanding tasks
- Includes L-theanine to complement caffeine and support a calm, focused state
- May help support attention during study, work or training
- Provides a convenient, measured caffeine dose — about one cup of coffee per capsule
- Offers a portable, no-brew alternative to coffee or energy drinks
What is inside the formula?
Two complementary active ingredients in equal 100mg amounts, with standard capsule excipients.
Caffeine Anhydrous (100mg)
Caffeine anhydrous is a concentrated, dehydrated form of caffeine that delivers a precise, consistent dose in every capsule. It is one of the most widely used stimulants and is included here to support alertness and wakefulness. At 100mg, one capsule is comparable to a single cup of coffee.
L-Theanine (100mg)
L-theanine is an amino acid found naturally in green and black tea leaves and is well known for supporting a calm, relaxed yet alert state of mind. Paired one-to-one with caffeine, it is included to complement the caffeine and support a composed, focused feeling.
Supplement Facts
The panel below is taken directly from the product label. Daily Values are not established for these ingredients.
| Supplement Facts | ||
|---|---|---|
| Serving Size: 1 Capsule Servings Per Container: 30 |
||
| Amount Per Serving | % DV | |
| Caffeine Anhydrous | 100mg | * |
| L-Theanine | 100mg | * |
| * Daily Value (DV) not established. | ||
Other ingredients: Rice flour, gelatin capsule, microcrystalline cellulose, magnesium stearate (vegetable source), silica.
How should you take Nutricost Caffeine with L-Theanine?
As a dietary supplement, take one capsule daily with 8–12 oz (about 240–350ml) of water, or as directed by your healthcare professional. Each capsule contains roughly as much caffeine as one cup of coffee. Do not consume more than 400mg of caffeine from all sources in any 24-hour period.
Many people take their capsule earlier in the day. Because caffeine can affect sleep, it is sensible to avoid taking it late in the afternoon or evening. Do not exceed the recommended dose, and count caffeine from other sources — coffee, tea, energy drinks, pre-workouts and other supplements — when planning your daily total.
How do you get the best results from this supplement?
For the best experience, take one capsule consistently at the start of your most demanding part of the day, with a full glass of water. Pair it with good hydration, balanced meals and adequate sleep.
Keep your total daily caffeine within the 400mg ceiling across all sources, and take it ahead of the period when you need to concentrate.
Results vary between individuals. Supplements are intended to support a healthy diet and lifestyle, not to replace them.
Who should use this caffeine and L-theanine supplement?
This supplement suits healthy adults aged 18 and over who want a measured way to support focus and alertness.
- Busy professionals managing long or demanding working days
- Adult students aged 18 and over needing focus support during study sessions
- Active adults and fitness users wanting a pre-session focus aid
- Shift workers and frequent travellers needing controlled alertness support
- Coffee drinkers seeking a more measured, consistent caffeine dose
Who should avoid this product or check first?
This product is intended for healthy individuals aged 18 and over. Some people should speak with a qualified healthcare professional before using it, or avoid it altogether. Always seek medical advice first if any of the points below apply to you.
- Pregnant or breastfeeding women — consult a doctor before use
- Anyone under 18 years of age — this product is not intended for children
- People taking prescription medication — check with a pharmacist or GP first
- People with a known sensitivity or allergy to any listed ingredient
- Anyone sensitive to caffeine, or who already consumes a high amount of caffeine daily
- People with any medical condition — seek medical advice first, particularly as caffeine can affect conditions such as heart problems, high blood pressure or anxiety
What does this product not do?
Being clear about what this supplement is not helps you set realistic expectations. It is a focus support dietary supplement, not a medical product, and it works alongside a healthy routine rather than replacing one.
- It is not a medicine and cannot replace prescription medication
- It does not treat, cure or prevent any disease or medical condition
- It is not a substitute for proper sleep, hydration or a balanced diet
- It does not provide unlimited or guaranteed effects — the response is temporary, dose-dependent and varies between individuals
- It is not a weight-loss product
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
How should you store this product?
Store in a cool, dry place away from direct sunlight, and keep the lid tightly sealed after every use to protect freshness.
- Store in a cool, dry place out of direct sunlight
- Keep the cap tightly closed after each use
- Do not store in a bathroom or near a heat source
- Keep out of reach of children
- Check the expiry date printed on the bottle before use
- Do not use if the safety seal is broken or missing
What will you receive when you order?
When you order from Recs-Medix, you will receive one factory-sealed bottle of Nutricost Caffeine with L-Theanine containing 30 capsules. The bottle is white with a blue cap and the Nutricost logo on the front.
The label is in English and carries Nutricost’s quality markings, including GMP-compliant facility, third-party tested and Non-GMO. Recs-Medix sources directly from authorised supply channels and does not sell opened or repackaged products.
Why buy Nutricost Caffeine with L-Theanine from Recs-Medix?
Recs-Medix is an established supplement retailer offering authentic products with fast online ordering and reliable worldwide fulfilment.
- Order online with DHL Express international shipping to the USA, UK, Canada, the EU and Australia
- Authentic sourcing direct from authorised supply channels
- Dedicated customer support via WhatsApp, phone and email
- Payment in Nigerian naira and international currency options
- Clear returns and refund policy
- Physical stores in Lagos and Abuja for customers who prefer to buy in person
Read our shipping and delivery information, review our returns policy, browse the supplement store FAQ, or contact our team with any questions.
Related focus and alertness products
If you are exploring ways to support focus and mental clarity, these related options from Recs-Medix may interest you.
- Discover the full range on the Nutricost brand page.
- For daily cognitive support, see the Brain Care Supplement.
- For concentration support, explore the I-Focus Capsule.
- For natural vitality support, consider Korean Ginseng Boost.
Frequently asked questions
What is Nutricost Caffeine with L-Theanine?
It is a daily focus support capsule combining 100mg of caffeine anhydrous with 100mg of L-theanine per serving. The caffeine supports alertness and wakefulness, while L-theanine is included to complement it. Each bottle contains 30 capsules — one serving per day.
Is Nutricost caffeine with L-theanine safe to take?
It is intended for healthy adults aged 18 and over. One capsule provides a moderate caffeine dose — about one cup of coffee. Keep your total daily caffeine under 400mg and consult a healthcare professional first if you are pregnant, nursing, on medication or have any medical condition.
How long does it take for caffeine pills to work?
For many people, caffeine is typically felt within about 30 to 60 minutes of taking a capsule. The exact timing varies between individuals depending on body weight, tolerance and caffeine sensitivity.
What are the benefits of taking caffeine pills?
Caffeine pills offer a convenient, measured way to support alertness and focus without brewing coffee or drinking sugary energy drinks. This formula adds L-theanine to complement the caffeine and support a calm, focused state.
Can I take this supplement every day?
It is supplied as a one-capsule daily supplement, but daily suitability depends on your overall caffeine intake, your sensitivity to caffeine and your healthcare professional’s advice. Count it within your total daily caffeine from all sources and take it earlier in the day.
Is this the 100mg or the 200mg version?
This page is for the 100mg caffeine with 100mg L-theanine capsule, 30 servings per bottle. Nutricost also makes higher-strength caffeine and caffeine powder formats. If you need a different strength, contact our team to confirm current availability.
Can I order Nutricost Caffeine with L-Theanine internationally?
Yes. Recs-Medix ships worldwide via DHL Express, including to the USA, UK, Canada, the EU and Australia, and also serves customers across Nigeria. You can order online or visit our Lagos and Abuja stores.
Last updated: 30 June 2026
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