Certification status
Informed Sport
EFX Sports Kre-Alkalyn EFX Powder
The powder version of EFX Sports' Kre-Alkalyn EFX — a pH-buffered creatine, claimed by the brand to stay stable through stomach acid (reducing the bloating some users report from monohydrate). Informed Sport certified. £32.93 at Amazon UK; 58 reviews averaging 4.3/5 — lower than the capsule version's review volume.
Buy in the UK
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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's the difference between Kre-Alkalyn powder and capsules?
- Format only — both deliver pH-buffered creatine. Capsules are easier for travel and pre-measured dosing; powder is typically cheaper per gram. The capsule version has higher review volume (5,700 vs 58).
- Does buffered creatine actually work better than monohydrate?
- EFX claims the buffering keeps creatine stable through stomach acid. Independent research has not consistently shown a performance benefit over plain creatine monohydrate, though some users report less bloating.
- Is Kre-Alkalyn dosed differently from standard creatine?
- EFX recommends 1.5 g per serving (vs 5 g for monohydrate), based on their absorption claims. The clinical evidence for dose equivalence is limited; most users still target 3–5 g of total creatine per day.
- Is this product flavoured?
- Check the Amazon listing for the current flavour SKU. EFX has sold both flavoured and unflavoured Kre-Alkalyn powder over the years.
- Is it certified for tested sport?
- Yes. Informed Sport batch-tested by LGC Sport Science against the WADA banned-substance list.
