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HRS-CAFSR Natural energy boosters HSN 5056329516819 https://www.hsnstore.pt/en/media/catalog/product/c/a/caffeine-sr-100-pure-gral-180-veg-caps-raw-front-hsn_1.webp
HSN Sport Nutrition and Natural Dietetics
EUR 2025-12-30T15:06:57+0000 12.04
Since it is an extended release, you don't feel that punch or immediate effect, it's a different sensation. In theory you are more concentrated during the day...
SLOW-RELEASE CAFFEINE (400mg CaffXtend®)

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SLOW-RELEASE CAFFEINE (400mg CaffXtend®)

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Slow-Release Caffeine in vegetable capsules. Certified CaffXtend® raw material. No additives. No fillers. Pure compound only. Natural caffeine source: coffee beans. Effect profile and 'slow' peak up to 12 hours of release. Perfect for students and workers. Suitable for vegans.

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Description

  •  Pure slow-release caffeine (CaffXtend®). An award-winning registered raw material in innovation.
  •  In vegetable capsules without fillers. 0% additives / 100% pure caffeine.
  •  400mg CaffXtend® = 200mg pure caffeine. 50% active ingredient in its granulation system.
  •  Natural origin of coffee beans (Coffea robusta).
  •  Sustained release profile. Sustained release for up to 12 hours thanks to the patented absorption system.

Table of contents

Caffeine SR. An old friend of the raw format now in capsules!

fplus 1 SR Caffeine

Caffeine SR slow-release is a food supplement by RawSeries in vegetable capsule form with no additives, no fillers, and only pure form certified by HSN.

The granulation system developed by Inventia Healthcare for the development of the prestigious CaffXtend® raw material allows for a system more easily adaptable to the cognitive needs of students and workers who may also want to enjoy a pure product of the highest quality without having to use the powder format which may be less practical and more suitable for athletes preparing pre-workout drinks.

Slow-Release Caffeine is a product of our new '100% Pure' encapsulation line from RawSeries.

Don't miss on it!

CaffXtend® is unique. Now available in the additive-free capsules

CaffXtend® is a raw material with which we love to work. You'll find it in many of our top products, not just as the sole ingredient, but as a central feature of many formulas such as our best-seller: Smart Caffeine.

The reason we like it so much is because its release profile is unique: normally regular caffeine, which has no special processing agents, is released in about 5-10 minutes, as is the case with our natural caffeine in vegetable capsules (known as 'immediate release').

The CaffXtend® treatment allows for a much longer release time, allowing the caffeine absorption profile to be slower and more sustained, which may perhaps make it less suitable for training, but certainly makes it more interesting for concentration during times of study and/or high workload.

New format! Your usual RAW product, now in vegetable capsules

At HSN we are renewing ourselves! And we have identified a clear need:

People who want to use pure RAW products, but do not like or are not comfortable with the powder format when it comes to dosing in milligrams, for which they need a Precision Balance; and they are also not used to, or want to encapsulate at home because they find it complicated or tedious.

At HSN we have had a huge range of encapsulated and tablet products since our beginnings, and CaffXtend® is no exception, which can be found in our Essentials range, and is one of our best-selling, recently launched mono-ingredient products.

With this product, we bring you an equivalent version but with 0% additives, no fillers in the capsule, just the pure powder coated with a vegetable polymer.

fplus 3 SR Caffeine

Guaranteed purity. In close collaboration with Inventia (creator of CaffXtend®)

Inventia Healthcare Ltd. is a renowned Indian company from the Mumbai region, specialising in the research of herbal extracts and nutraceuticals such as caffeine, a compound on which they have invested a great deal of research resources until they have reached the point of developing caffeine with a unique release pattern.

You should bear in mind that any caffeine is quick release; it is absorbed in the stomach itself, without passing through the gut, so within minutes it is already in the bloodstream, fully absorbed and generating its effects, all at once.

Caffeine slow-release is better for certain purposes because instead of passing into the bloodstream in a short period of time, it is released progressively over hours, in the case of CaffXtend® reaching a total peak release of 12 hours, ideal for long days of study and/or work.

CaffXtend logo

This patented raw material guarantees slow-release, without the need for the use of animal glazing agents or lacquers like other brands that instead of granulating their caffeine with slow-release systems, use fast caffeine with enteric coatings, which is neither effective nor efficient.

CaffXtend® is the best slow-release system ever developed.

High dose of caffeine = 200mg pure. Clean labelling, granulate breakdown

At HSN we follow good manufacturing and labelling practices.

Our own factory has all the guarantees and quality certifications in terms of food safety, of the highest degree, and compliance with the most demanding standards of the European Union.

Unfortunately, not all companies are the same.

A common practice is to indicate on products that provide CaffXtend®: Caffeine (CaffXtend®) 200mg.

This is a scam!

CaffXtend® has a unique granulation system, which takes away the pure caffeine, so CaffXtend® as such only provides 50% caffeine per unit mass, i.e., to provide 100mg of caffeine, you need 200mg of CaffXtend®.

When companies state the above, you may be misinformed that the product provides 200mg of caffeine, when in fact it only provides 100mg.

At HSN we are completely tansparent and provide all valid and available information, with no misunderstandings:

Our product provides per vegetable capsule: 400mg of pure CaffXtend®, of which 200mg is pure caffeine, so each capsule provides you with 200mg of slowly released caffeine.

What properties does Slow-Release Caffeine have that may be of interest to me?

fplus 4 SR Caffeine

Caffeine has positive properties on physical performance and cognitive performance. Four main effects stand out:

  •  It helps to increase alertness.1
  •  It helps to improve concentration.1
  •  It contributes to increased endurance performance.2
  •  It contributes to a reduction of perceived exertion during exercise.3

A unique release profile: up to 12 hours

fplus 2 SR Caffeine

Nutrikinetic studies show that immediate-release caffeine is absorbed within minutes, its effects reaching a noticeable peak 40-60' after consumption, with a significant 'dip' thereafter.

Many people are not convinced by this, and this is the reason why they do not consume caffeine: it makes them nervous, and its effects wear off abruptly, causing a so-called 'caffeine crash'.

Slow-release caffeine is notable for not releasing so quickly, but for having a unique release profile as shown in the image below:

CaffXtend Liberación

This allows:

  1.  That the nervousness that caffeine can generate in sensitive people is much less as it is not released all at once and does not generate 'peaks'.
  2.  As there are no peaks, there are no dips either, which makes the effects of caffeine more sustained and much better.

Is this Caffeine for me? Ideal usage profiles and alternative suggestions:

The CaffXtend® is perfect for students and people who want to concentrate on long, sustained sessions, yet are not looking for a 'high peak' of effects.

Whenever as a caffeine user you are looking for low-profile effects over time, CaffXtend® is the best choice with its high concentration and slow release.

Now... Are you looking for caffeine for training? Try Evordx 2.0, with immediate-release caffeine.

If you're looking for caffeine to start your day, you can try it in Keto Instant Coffee, delicious and powerful.

Start a new era with the essence of the original. Join us!

At HSN we have several ranges of products focused on different objectives.

The Raw range 'RawSeries' is known and identified for being made up of pure products, unique components of the highest quality, without additives, and as they do not contain additives, they are powdered products.

We have improved our formulas!

And we are embarking on a new journey with our range of RAW series encapsulations, developed without additives, and in most projects, without fillers of any kind, which will be used exclusively when we discuss the need to develop products such as vitamins that are measured in micrograms.

The best ingredients are always available from the leading brand in food supplements, healthy nutrition, and physical exercise. HSNStore. Come and join us!

Bibliographic References

 

1 The effect is obtained with an intake of at least 75mg of caffeine.

2 The effect is obtained with an intake of 3mg caffeine/kg body weight, one hour before exercise. This statement is intended for adults who engage in endurance exercise.

3 The effect is obtained with an intake of 4mg caffeine/kg body weight, one hour before exercise. This statement is intended for adults who engage in endurance exercise.

Nutritional Info.

Nutritional Facts

SLOW-RELEASE CAFFEINE (400mg CaffXtend®) - 180 veg caps
daily doseper serving
Serving size: 1 veg caps
daily dose: 1 veg caps
Servings per container: 180
Daily amount
Long-acting natural granulated caffeine (CaffXtend®) 400mg
Caffeine 200mg

Ingredients

Long-acting natural granulated caffeine [caffeine anhydrous (plant extraction from Coffea robusta beans)], vegetable capsule [glazing agent (hydroxypropyl methylcellulose)].

Warnings

Store in a cool (below 25°C), dry and dark place. Do not exceed the stated recommended daily dose. Keep out of reach of the smallest children. Nutritional supplements should not be used to replace a balanced diet. Contains caffeine (200mg/daily dose). Not advised for children nor pregnant women. Caffxtend® is a registered trademark of Inventia Healthcare Ltd.. It is necessary to maintain a varied and balanced diet and a healthy lifestyle.

time-to-use

How to take SLOW-RELEASE CAFFEINE (400mg CaffXtend®) - 180 veg caps

Take 1 vegetable capsule, 1 time a day, preferably in the morning.

Questions

The product reviews and opinions published reflect only the customers’ views and experiences. HSN does not verify or endorse such comments or claims, and is not responsible for the content provided in the reviews. Statements regarding food supplements have not been evaluated by the EFSA (European Food Safety Authority) and are not intended to diagnose, treat, cure, or prevent any disease or medical condition.

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CUSTOMER REVIEWS

38 real opinions

The product reviews and opinions published reflect only the customers’ views and experiences. HSN does not verify or endorse such comments or claims, and is not responsible for the content provided in the reviews. Statements regarding food supplements have not been evaluated by the EFSA (European Food Safety Authority) and are not intended to diagnose, treat, cure, or prevent any disease or medical condition.

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  • Well

    Rubén 24/11/2025

    Since it is an extended release, you don't feel that punch or immediate effect, it's a different sensation. In theory you are more concentrated during the day...

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  • AMAZING PRODUCT

    Curt 29/05/2025

    I absolutely LOVE these. They give you a really smooth, crash free caffeine effect, FAR supperior to bolus doses of normal caffeine. I usually take 50 mg bolus dose (caffeine tablet) plus one of these in the morning and that covers the whole day. You might need a small dose at lunch but that's it! I will never go back to normal caffeine tablets.

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  • The best on the market!

    Cristian 19/05/2025

    I'm sensitive to caffeine, but this HSN one is perfect, it gives me energy without making me nervous! Very good product for everyday use! I recommend it 100%!

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  • Good

    Santi 18/02/2025

    I use it at times when I need to be more concentrated. It does its job perfectly.

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  • Action

    Cesar 15/02/2025

    So that you never lack that push to start your workouts and give 100% in them.

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