Search
  • Compare Products
My Cart
 
main product photo

Creatine

Clinically proven to boost power, strength, and short-burst performance.
Learn More
$39.99

Member $37.99

$0.50/serving

- +

Shipping $5.99 on orders up to $49.99. Free shipping on $50+ orders.
Alaska & Hawaii excluded from shipping.

INGREDIENTS

Nutritional Information

100% APPROVED

Informed Sport

Nutritional Information

All Science in Sport products are certified under the strict guidelines of the INFORMED Sport Programme. To achieve this, an independent organization (LGC Assure) with an accredited, independent laboratory that’s been testing for banned substances for over 20 years, rigorously tests our products to detect all compounds on the World Anti-doping Association Banned Substances list.

Informed Sport

Providing assurance for athletes, All INFORMED Sport certified Science in Sport products are rigorously tested, screening for all compounds on the WADA Banned Substances list.

How It's Tested

1. Product Review

2. Lab Tests (3+)

3. Batch Tests

4. Random Tests

Supplement Testing Labs

Driven by innovation and excellence, INFORMED Sport is the leading independent supplement testing provider, specialising in drug surveillance, doping control and supplement analysis.

Next Working Day Delivery Information:

Weekdays: Orders placed before 6:30pm will be delivered the next day - including on Saturdays.
Weekends: Orders placed before 1pm will be delivered the next day - including Sundays.
Bank Holidays: Orders will not be delivered on Bank Holidays. Any orders placed on a Bank Holiday will not be collected from our warehouse until the next non-holiday day, for delivery the following day.

Please note that Next Day Delivery excludes these postcodes: AB31-56, BF (all), BT (all), FK17-21, GY (all), HS (all), IM (all), IV (all), KA (all), KW (all), PA20-80, PH (all), TR21-25, ZE (all)

Please see specific promotion Terms & Conditions for details BFPO Addresses We do ship to BFPO addresses (with Royal Mail) but for active combat zones there is a strict 2kg weight limit (as with all deliveries to BFPO addresses), so please take this into account when ordering. As a guide, with careful packaging we can just get away with a 1.6kg tub. All orders under this weight limit will be treated as standard UK orders. All orders over this weight will be priced incrementally according to their weight (£5 per 2kg increase). If you have any queries regarding a BFPO address, please contact our Customer Service Team who will be happy to assist with your order.

FUEL EVERY REP

Creatine is a naturally occurring compound made in the liver that fuels your muscles during high-intensity efforts. Formed from three amino acids—L-Arginine, L-Glycine, and L-Methionine—it supplies quick energy for training that demands speed, power, and endurance.

NATURALLY PRODUCED

Synthesized by the liver, kidneys, and pancreas to support muscular energy.

SHORT-BURST ENERGY

Enhances your body’s ability to perform during intense, high-effort activity.

BUILT FOR STRENGTH

Helps increase power output and build lean muscle mass.

AMINO-DRIVEN FORMULA

Made from three key amino acids that fuel performance and recovery.

  1. Vitamin C contributes to normal energy-yielding metabolism.
  2. Vitamin B6 & B12 contribute to the reduction of tiredness and fatigue.
Women at the gym holding a tub of SiS Creatine next to a SiS water bottleWomen at the gym holding a tub of SiS Creatine next to a SiS water bottle

TRAIN HARDER. RECOVER STRONGER

Your body naturally produces creatine, but only about half of what you need each day. Supplementing ensures your muscles have the energy to perform at their peak during short, explosive efforts like sprints, lifts, and high-intensity intervals.

For athletes looking to push harder and recover faster, daily creatine intake is a proven edge. Mix with water or SiS Hydro+ anytime.

WHY ELITES CHOOSE SiS CREATINE

  • Fuels short, high-intensity training sessions and power output.

  • Boosts strength and helps build lean muscle mass.

  • Each serving delivers 3g of pure creatine monohydrate.

  • Batch-tested and Informed Sport certified for quality and safety.
Cardio training with athletes on powerbikes in the gymCardio training with athletes on powerbikes in the gym
Strength training in the gym, with a female athelte using a weighted pulleyStrength training in the gym, with a female athelte using a weighted pulley

SUGGESTED USE

Add one scoop (3g) of creatine monohydrate to 6.5 oz (200 ml) of water or juice. Stir for 10 seconds and drink immediately. 

 Use once daily. One serving = 3g.

Recommended to weigh out for the most accurate measure.

DRIVEN BY SCIENCE

Creatine Monohydrate is one of the most researched and trusted performance supplements in sports nutrition. It’s stored in your muscles as phosphocreatine (PCr), which fuels short bursts of power and speed. Supplementing increases PCr stores, giving your body the ability to regenerate energy faster and sustain performance longer.

 

THE SCIENCE OF STRENGTH

Creatine monohydrate supplementation increases physical performance during repeated bursts of short-term, high-intensity exercise and supports greater strength and muscle growth when combined with resistance training.

Learn more

CREATINE FOR ENDURANCE

Creatine is a naturally occurring compound that can be consumed through diet or produced in the liver and kidneys. However, the small amount obtained from food alone isn’t enough to optimize muscle creatine stores. That’s why athletes across every discipline—from powerlifters to sprinters—supplement daily.

A consistent intake of 3g creatine monohydrate after a loading phase has been clinically proven to enhance performance, improve muscle output, and increase lean muscle mass when combined with structured training. Recent studies also suggest creatine may support overall health and cognitive resilience, making it one of the most versatile performance tools available.

Nutrition Overview Science