Better Swaps · 2026
Alternatives to Bio-Synergy After Dark Protein
We score every casein against the same evidence-based clinical reference, so these swaps beat Bio-Synergy After Dark Protein on Effectiveness Match, true cost per serving, or both — never on brand reputation or marketing.
Applied Nutrition 100% Casein Protein is our top-rated alternative to Bio-Synergy After Dark Protein, scoring 88/100 on Effectiveness Match versus 50.
Better-rated swaps
Higher Effectiveness Match than After Dark Protein on our reference spec.
Better-value swaps
More Effectiveness Match per pound than After Dark Protein — true cost per full effective serving.
The Protein Works (TPW) 100% Micellar Casein
£1.09/serving · +30 vs After Dark Protein · value pick
Optimum Nutrition Gold Standard 100% Casein
£1.48/serving · +14 vs After Dark Protein · value pick
Straight face-off: After Dark Protein vs 100% Casein Protein →
See the full ranking: Best Casein UK 2026 →
How to choose: Casein 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.