Certification status
Informed Sport
zooki Super Strength Collagen Zooki
Liquid collagen in single-serve sachets, not a powder — zooki's Super Strength gives 11,000 mg of hydrolysed marine collagen (from white fish) plus vitamin C per sachet, wrapped in the brand's liposomal 'Lipo-shield' for absorption. Sugar-free. Informed Sport certified. £39.99 at both Amazon UK and Holland & Barrett, where it has over 1,900 reviews at 4.8/5.
Buy in the UK
- Paid linkView price at Amazon UK
- Paid linkView price at Holland & Barrett
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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 kind of collagen is it?
- Hydrolysed marine collagen, sourced from white fish, at 11,000 mg per 18.5 ml sachet, with 40 mg of added vitamin C. It's a liquid you take straight from the sachet rather than a powder to mix.
- What does 'liposomal' mean here?
- zooki wraps the collagen in a lipid layer it calls 'Lipo-shield', intended to protect the nutrients through digestion and aid absorption. That's the brand's rationale; we report it without endorsing the absorption claim.
- Is it suitable for vegetarians?
- No. It's marine collagen, derived from fish, so it isn't suitable for vegetarians, vegans or those avoiding fish.
- Is it certified for banned substances?
- Yes — Informed Sport, with each batch screened against the WADA banned list, which is useful for tested athletes taking a daily collagen.
- Why do the two retailers show different review counts?
- Both list it at £39.99, but the Holland & Barrett listing has over 1,900 reviews (4.8/5) versus around 120 on Amazon UK — the H&B listing is the more established one.
