R E X F I T

BOOSTER

Sports Hydration ‧ Electrolyte Balance

Designed for strength training, HIIT, functional training, and explosive sports. Combining taurine, L-arginine, Moro blood orange extract, Vitamin C, and glucose, it offers another option for pre-workout nutrition.

HK$128/box | 10 packs
  • Zero caffeine
  • Each contains 1100 mg of Taurine and 600 mg of L-Arginine 
  • Refreshing instant formula, convenient for pre-workout nutrition

Get ready for high-intensity training

Pre-Workout Preparation × Energy Support × Caffeine-Free
Designed specifically for strength training, HIIT, functional training, and explosive sports. Combining taurine, L-arginine, Moro blood orange extract, and glucose, it offers another option for pre-workout nutrition.
Caffeine-free, to match your training pace.

L-Arginine

Each pack contains approximately 600 mg of L-arginine, which participates in the nitric oxide synthesis pathway. As a vasodilator precursor, it promotes blood flow to support muscle oxygenation.

Moro Blood Orange Extract|Moro Blood Orange Extract

Each contains 1,001 mg of Moro blood orange extract, with plant-derived ingredients added to the formula. Bringing natural flavor characteristics to the formula.

Glucose & Vitamin C

Contains approximately 6.2 g of glucose and 550 mg of vitamin C, providing carbohydrates and vitamins to support your pre-workout nutrition.

Taurine|Taurine

Contains 1,100 mg of taurine per serving. Taurine participates in physiological processes such as maintaining cellular osmotic pressure and ionic balance, delaying muscle fatigue and enhancing muscle contraction strength.

Suitable Scenarios|Applicable Scenarios

Weight training and strength training

Pre-workout nutrition for weight training, strength training, and heavy lifting days.

HIIT and Functional Fitness Training

High-intensity interval training, CrossFit, and multi-exercise workout routines.

Ball Sports and Explosive Sports

Basketball, badminton, and other sports requiring quick movement and repeated exertion.

How to Use

1 packet (11g) Booster + 400-500ml water

Stir or shake until fully dissolved

Mainly used for pre-workout nutrition

FAQ

Q1: What is the main function of Rexfit Booster?

Rexfit Booster is a supplement designed for high-intensity training and pre-workout preparation, suitable for weightlifting, heavy resistance training, HIIT, functional training, ball sports, and more.

The formula combines taurine, L-arginine, and vitamin C, and provides glucose to address pre-workout hydration, nutritional replenishment, and sports preparation needs. Unlike Rexfit Original, which focuses primarily on hydration for long-duration endurance sports, Booster is geared more toward pre-workout use.

Q2: When is the best time to take Rexfit Booster? How do the serving sizes differ for training days and race days?

Consume 45–60 minutes before training or competition to prepare for high-intensity exercise.

  • Regular training: Mix 1 packet with 300–500 ml of water each time. Suitable for consumption before weight training, HIIT, and functional training.
  • Competition day / high-intensity challenges: Use the recommended serving size indicated on the product and adjust intake based on the intensity of the day's exercise and individual needs.

Rexfit Booster features a caffeine-free formula, eliminating the need to rely on caffeine for stimulation. It is suitable for athletes who wish to avoid additional caffeine intake.

Tip: For first-time users, we recommend trying it during a regular training session first to determine your personal tolerance before using it before an official competition.

Q3: Does Rexfit Booster contain caffeine? Will it affect sleep or cause heart palpitations?

Rexfit Booster is formulated to be caffeine-free (0 Caffeine), relying on caffeine as a stimulant, making it a suitable option for those who wish to avoid consuming additional caffeine.

However, being caffeine-free does not necessarily mean that palpitations or sleep issues will not occur. Individual reactions, exercise intensity, other foods and supplements, and other factors may all affect how your body responds. If you experience palpitations or other discomfort after consumption, you should stop using the product and seek appropriate medical advice.

Q4: Why is Rexfit Booster primarily designed for high-intensity training, while Rexfit Original is better suited for long-duration endurance sports?

The two products cater to different exercise needs and have different formulation focuses.

Rexfit Booster|Pre-High-Intensity Workout Preparation

Booster combines taurine, L-arginine, vitamin C, and glucose to support pre-workout replenishment needs from different angles:

Specially added L-arginine (L-Arginine):  It is a precursor of nitric oxide (NO), participates in the synthesis of nitric oxide in the body, and is related to the blood vessel dilation mechanism.

Through the combination of different ingredients, Booster focuses on nutritional supplementation and exercise preparation before high-intensity training, suitable for scenarios such as fitness weight training, heavy weight training, HIIT, and ball sports.

Rexfit Original|Hydration for Long-Duration Endurance Sports

Original focuses on hydration and electrolyte replenishment during exercise, especially suitable for long-distance running, cycling, off-road racing, and endurance activities with heavy sweating.

Simply put, Booster focuses on pre-workout preparation, while Original focuses on hydration and electrolyte replenishment during endurance sports, allowing athletes to choose the right product for different training scenarios.

Q5: Can people with low blood pressure or cardiovascular issues drink Rexfit Booster? Is it suitable for consumption on days when you do not exercise?

Rexfit Booster is primarily designed as a pre-workout supplement and is not intended for daily health maintenance or therapeutic purposes.

As the formula contains L-arginine, it may affect vasodilation and blood pressure. Individuals with low blood pressure, as well as those taking blood pressure medication, nitrates, or other medications that may interact with L-arginine, should consult a doctor or pharmacist before use. Individuals with cardiovascular disease or a history of myocardial infarction should also seek professional medical advice first.

When you do not have exercise needs, there is no need to drink Booster specifically for supplementation. Please use the recommended serving size indicated on the product and do not increase the dosage on your own.