Every FitLab Score is calculated using a transparent 10-point framework across 6 weighted categories. No paid placements influence any score.
The FitLab Score is a composite 0–10 rating built from six independently weighted categories. A product must score well in every category to earn a high total — a single great feature cannot mask poor performance elsewhere.
We assess whether each ingredient has clinical evidence supporting its use in the specific application. Third-party verified ingredients (Creapure®, KSM-66®, AlphaSize®) score higher than generic equivalents. We cross-reference ingredient sources against peer-reviewed literature in PubMed, Examine.com, and the ISSN position stand library.
We compare every active ingredient against the clinically studied dose range. An ingredient dosed below the effective threshold (e.g. 1.6g beta-alanine when studies use 3.2g) scores significantly lower than one at clinical dose. Proprietary blends where doses are hidden always score zero in this category.
Full ingredient disclosure, accurate label claims, and no deceptive marketing score highest. We check for amino spiking, protein content accuracy against claimed amounts, and whether the front-of-pack claims match the actual formula. Products that hide doses behind proprietary blends receive a maximum of 3/10 in this category.
Products certified by Informed Sport, NSF Certified for Sport, USP, or Informed Choice receive full marks. These programmes test for 280+ banned substances and verify label accuracy. Products with no independent testing receive a maximum of 5/10 here.
Cost per serving relative to ingredient quality, not just the total price. A $2/serving product with clinical doses of Creapure creatine and Informed Sport certification offers better value than a $0.50/serving product with underdosed generics. We calculate effective cost per clinical dose where applicable.
Mixability, flavour accuracy (if applicable), texture, and reported side-effect frequency from verified purchase reviews. This category intentionally has a low weighting — it should not override ingredient quality or dosing in the overall assessment.
FitLabReviews operates entirely on affiliate commissions — we earn when you click a link and make a purchase. No brand has ever paid us to review a product, or to improve a score. Products we review are either purchased independently, sent unsolicited for review, or we decline to review them.
If you believe a score is incorrect or have evidence we should consider, contact Jake directly →