Certification status
Informed Sport
EFX Sports Karbolyn Fuel
Karbolyn Fuel from US brand EFX Sports is built on Karbolyn — a patented, enzymatically processed high-molecular-weight carbohydrate from potato, rice and corn starch, distinct from simple maltodextrin or dextrose. Marketed as fast-absorbing with low osmolality, it is a sugar-free, stimulant-free carbohydrate powder. Informed Sport certified, so every batch is screened against the banned-substances list.
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Why this certification matters
- Informed Sport
- Informed Sport certification is especially relevant for athletes in tested sports because products are batch-tested for substances prohibited in sport.
Frequently asked questions
- What is Karbolyn?
- Karbolyn is a patented, enzymatically processed high-molecular-weight carbohydrate derived from potato, rice and corn starch. EFX positions it as faster-absorbing and lower in osmolality than simple sugars like maltodextrin or dextrose.
- What format is it?
- A powder you mix with water, available unflavoured and flavoured. It is sugar-free and stimulant-free.
- Who is it for?
- Endurance and team-sport athletes wanting a fast carbohydrate source for fuelling or recovery, without added sugar or stimulants.
- Is it certified for tested sport?
- Yes. It carries Informed Sport certification, so every batch is independently screened against the WADA banned-substances list.
