Better Swaps · 2026
Alternatives to Naughty Boy Amino
We score every eaas against the same evidence-based clinical reference, so these swaps beat Naughty Boy Amino on Effectiveness Match, true cost per serving, or both — never on brand reputation or marketing.
Per4m Per4m EAA is our top-rated alternative to Naughty Boy Amino, scoring 100/100 on Effectiveness Match versus 91.
Better-rated swaps
Higher Effectiveness Match than Amino on our reference spec.
Better-value swaps
More Effectiveness Match per pound than Amino — true cost per full effective serving.
Straight face-off: Amino vs Per4m EAA →
See the full ranking: Best EAAs UK 2026 →
How to choose: EAAs buyer's guide →
Effectiveness Match scores active doses against evidence-based standards. Informational only — not medical advice. Some links are affiliate links; we may earn a commission at no cost to you.