Fat burn, VO2 max

Advanced multipurpose endurance supplement combining natural stimulants and adaptogens to maximize fat burn and boost performance.

  • Boosts fat metabolism
  • Improves VO2 max and endurance
  • Increases ATP energy levels
  • Reduces workout related stress
  • Reduces water retention

Regular price£39.99 Sale price£29.99Save £10.00

Quantity: 90 capsules / 30 servings

Dispatch within 48 hours. Delivery time 1 - 2 days.

Fusion

£39.99 £29.99

Don't know which gel to choose? 👇

Fusion is a powerful multipurpose supplement designed for endurance athletes who want to stay lean and energized. It allows you to manage weight effectively while keeping your performance on point.

With a potent blend of natural stimulants and adaptogens, Fusion improves fat oxidation, boosts VO2 max and reduces stress — ideal for athletes who want to lose excess weight and increase overall endurance.

Why adaptogens? Workout related stress is a major factor affecting both weight loss and performance. During training, rising stress levels increase cortisol, which slows fat loss and hinders performance.  Fusion’s powerful adaptogen blend helps overcome these workout stress-related challenges, enabling you to lose weight faster and maintain peak energy.

Become leaner and faster with Fusion in just 2 weeks!

  • Boosts fat metabolism
  • Boosts VO2 max and endurance
  • Increases ATP energy levels
  • Reduces water retention
  • Reduces workout related stress
  • Increases focus
  • Reduces mental fatigue
  • Natural ingredients
  • Doping-free
  • Vegan capsules

Take 3 capsules with water approximately 20 minutes before exercise.

On non-training days, take 3 capsules in the morning.

After three months of taking the product, it is recommended to take a 3-4 week break.

Instructions on how to combine different adaptogen products are found on this link.

WARNING! The use of this product is not recommended for people who:
  • use antihypertensives and blood thinners — in this case, we advise against the use of this product and recommend that you consult your doctor, who knows you best, or the specialist who prescribed the medication;
  • are sensitive to stimulants in any way!

 

Per serving (3 capsules)

RDA*

Green tea extract (95% polyphenols, 45% EGCG)

540 mg *

Panax ginseng (80% ginsenosides)

30 mg *

Rhodiola (3% rosavins, 1% salidrosides)

240 mg *

Cayenne pepper extract (10:1)

120 mg *

Ginger extract (10:1)

120 mg
*
Grape seed extract (95% OPC) 120 mg

Dandelion extract (10:1)

60 mg
*

Caffeine

60 mg *

Food supplement. Ingredients: Green tea extract (95% polyphenols, 45% EGCG) 540 mg, Korean ginseng {Panax ginseng (80% ginsenosides)} 30 mg, Rhodiola {Rodiola rosea (3% rosavins and 1% salidrosides)} 240 mg, cayenne pepper extract (10:1) 120 mg, ginger extract (10:1) 120 mg, grape seed extract (95% OPC**) 120 mg, dandelion extract (10:1) 60 mg, caffeine 60 mg. Other ingredients: vegan capsule; lubricant: magnesium salts of fatty acids. May contain traces of oats, barley, wheat (GLUTEN), ribs, milk (MILK) or soy (SOY). Caution: Contains caffeine! The product is not suitable for children, pregnant women and nursing mothers. The product is not a substitute for a balanced diet. Keep out of the reach of children. Contains caffeine. Store in a dry, cool place, away from heat, light, and moisture. Net quantity: 90 capsules. *Values are given per serving. **Oligomeric proanthocyanidins.

Customer Reviews

Based on 690 reviews
64%
(442)
15%
(102)
8%
(53)
5%
(33)
9%
(60)
W
Wessel G.
Instantly more air and power!

Wasn’t really sure if this was going to make a difference, but wauw: from the first time I took it, it’s making a major difference in how I feel while cycling. More air, can produce more power for a longer period of time while feeling less fatigued.

Wow, Wessel,thank you so much for sharing this amazing feedback! 🙌 We’re thrilled to hear you’re feeling the difference right from your first ride — more air, more power, and less fatigue is exactly what we aim for. Keep enjoying those stronger, smoother cycling sessions, and thanks again for being part of our community!

m
maurizio b.

Fusion

R
Ricardo C.

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Reviews in Other Languages

a
anna c.c.c.
Performance garantire

Ottimo percezione dell efficacia sia in gara che nel recupero! Mai più senza!

Grazie! Siamo lieti che il prodotto ti piaccia.

J
Jose D.

Produto muito bom e com o efeito pretendido

A
Anonymous
El producto no me ha llegado

El producto no me ha llegado. Pero es muy bueno

¡Hola, José!

Muchas gracias por tu comentario y por la confianza 🙏
Nos alegra saber que te gusta el producto, aunque lamentamos mucho que tu pedido todavía no haya llegado.

Ya hemos registrado un nuevo envío, y en breve recibirás por email el nuevo enlace de seguimiento para que puedas controlarlo fácilmente.

¡Gracias por tu paciencia y por seguir confiando en nosotros! 💪

At 4Endurance, our mission is simple

To provide elite-level nutrition at accessible prices for all. We follow the latest science in sports nutrition and use only high-quality ingredients that support your performance. From amateur enthusiasts to professional teams, we support athletes of all levels in reaching their goals.