After Dark — Slow-Release Protein. Built for the Night Shift.
After Dark — Slow-Release Protein. Built for the Night Shift.
Most people focus on post-workout nutrition. Almost nobody thinks about what they give their body before bed — the longest recovery window of the day.
After Dark is a slow-release protein blend formulated specifically for overnight recovery. While you sleep, it delivers a sustained supply of amino acids to muscles that are actively repairing — exactly when they need it most.
Developed by Bio-Synergy's sports nutrition team with Magnesium and Zinc in their most bioavailable forms, Glycine for connective tissue repair and sleep, and B Vitamins so you wake up recovered — not just rested.
Belgian Chocolate and Salted Caramel. The best night-time ritual is one you actually look forward to.
Best for
Night-time recovery
Strength and endurance athletes
Anyone training hard and wanting to optimise every recovery window
Those experiencing soreness or disrupted sleep
Why it works
Micellar Casein & Milk Protein Slow-digesting proteins releasing amino acids gradually over several hours — feeding muscle repair through the night.
Magnesium Contributes to normal muscle function and the reduction of tiredness and fatigue.
Zinc Contributes to normal protein synthesis and the maintenance of normal testosterone levels.
Glycine & Taurine Key amino acids for connective tissue repair and recovery quality.
Vitamins B6, B12 & Folic Acid Contribute to normal energy-yielding metabolism — so you wake up ready to perform.
What makes it different
Multi-phase protein blend — not just one source
Magnesium & Zinc in bioavailable forms
Taurine and Glycine at meaningful doses
No artificial colours. No aspartame.
Available in Belgian Chocolate & Salted Caramel
How to Use
Mix one 30g scoop with 200–250ml cold water or milk. Take 30–60 minutes before bed.
Since 1997 Bio-Synergy has been setting standards in sports nutrition. Certified B Corporation®. Made in the UK. Independently tested. Used by elite and professional athletes for over 25 years.
After Dark was developed from a simple idea: evenings should feel restorative, not rushed. It’s a nightly ritual designed to help you wind down with intention.
Designed specifically for nighttime nourishment
Most shakes are built for daytime speed. After Dark uses slow-release proteins and thoughtfully chosen ingredients to support you through the long overnight hours.
Glycine gives After Dark its signature “evening feel”
We included a generous amount of glycine to help make your PM routine feel calmer, softer, and more grounded.
A dessert moment you can actually feel good about
Salted Caramel and Belgian Chocolate were crafted to replace late-night snacking with something richer, more satisfying, and aligned with your goals.
Premium magnesium bisglycinate for a smoother end-of-day experience
We chose one of the gentlest forms available, so your nightly shake feels as soothing as your wind-down routine.
A blend inspired by real life
This formula was built for people juggling work, training, family, and the pressure of long days a shake that supports you when you finally get a moment to yourself.
Your best mornings start the night before
A quiet, comforting After Dark shake can turn the end of your day into a small luxury helping you reset, recharge, and wake up ready.
Directions for use
Mix one 30g serving (approximately one scoop) with 200–250ml of cold water or milk, milk alternative or even try warm. Adjust liquid amount for your preferred thickness. Best enjoyed 30–60 minutes before bed or whenever you want a high-protein, evening-friendly drink.
Absolutely. All our supplements undergo rigorous testing for safety and efficacy. We adhere to the highest standards to ensure our products are free from banned substances, making them safe for athletes at all levels.
How do I know which Bio-Synergy supplement is right for me?
Our product range is designed to cater to various fitness goals, whether it's building muscle, losing weight, or enhancing endurance. For a more personalised approach we recommend a Bio-Synergy DNA test to identify the best supplement for you.
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While our supplements are safe, we recommend consulting with your doctor before starting any new supplement regimen, especially if you are currently taking other medications.
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Keep your supplements in a cool, dry place away from direct sunlight. Make sure the cap is tightly sealed after each use to maintain their potency and freshness.
What is the return policy for Bio-Synergy supplements?
We stand behind the quality of our products. If you are not satisfied with your purchase, you can return it within 30 days for a full refund. Please visit our return policy page for detailed information.
Do Bio-Synergy supplements have any side effects?
Bio-Synergy supplements are designed to be safe and effective when used as directed. However, as with any supplement, some people may experience side effects. If you experience any adverse effects, stop use immediately and consult a healthcare professional.
How long does it take to see results from Bio-Synergy supplements?
Results can vary based on individual factors like diet, exercise, and overall health. Some may notice benefits immediately, while for others, it might take longer. Consistency and a healthy lifestyle are key to achieving the best results.
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