Water-based, sugar-free and fruit flavoured

High Protein Energy Drink

Pre-workout supplements are one of the biggest categories in sports nutrition — and often one of the most compromised. Many formulas rely on excessive synthetic stimulants that create energy spikes and crashes, leaving athletes feeling drained after training. Protein Rx Energy takes a different approach: plant-derived extracts and superfood ingredients that support blood flow, focus and sustained energy in a way that works with the body, not against it. The addition of protein is a practical Sport Rx innovation, helping support muscle maintenance and performance during demanding training sessions.

Two cans of Protein RX Energy drink on a bed of ice by Sport Rx

Plant-Derived Energy — Cleaner Performance Support

Energy Rx uses plant-derived extracts and superfoods as the foundation of its energy and focus formulation. This approach delivers meaningful support for blood flow, alertness and sustained physical energy without the high-dose synthetic stimulants that characterise many conventional pre-workouts.

The result is an energy profile that performs without the excessive post-workout crash — a meaningful advantage for anyone who trains in the morning or needs to function effectively after their session.

Man holding a can of Protein Energy drink against a dark background

Blood Flow Support for Training Performance

Adequate blood flow during exercise underpins oxygen delivery to working muscles and the clearance of metabolic waste products — both of which directly influence how hard and for how long an athlete can train effectively. Ingredients in Protein Rx Energy are specifically selected to support healthy circulation during training, contributing to better training performance and faster intra-session recovery between sets.

Two cans of Sport Rx Protein RX Energy drink held by a hand on a dark surface

Mental Focus Alongside Physical Energy

Physical energy is only part of the pre-workout equation — mental focus, motivation and the ability to maintain form and technique through fatigue are equally important performance variables. Protein Rx Energy addresses both simultaneously, with ingredients chosen specifically for their role in supporting cognitive function and alertness during training — allowing athletes to train smarter as well as harder.

Energy and protein. Pre-workout and recovery support. One drink. Zero compromise.

Your cart
Variant Variant total
Protein Rx Energy Drink — Sparkling Protein Energy Drink
Velocity Surge / Single
R 29.95/ea
R 0.00
Protein Rx Energy Drink — Sparkling Protein Energy Drink
Velocity Surge / 6 Pack
R 169.95/ea
R 0.00
Protein RX Energy drink can on a white background
Blue Raspberry / Single
R 29.95/ea
R 0.00
Protein Rx Energy Drink — Sparkling Protein Energy Drink
Blue Raspberry / 6 Pack
R 169.95/ea
R 0.00
Total items: 0

Subtotal

R 0.00
View cart
Tax included. Shipping calculated at checkout.

FAQs

Please read our FAQs page to find out more.

How is it different from a regular energy drink?

Unlike standard energy drinks, Protein Rx Energy contains a sophisticated blend of whey protein isolate, BCAAs and collagen peptides to help fuel your muscles, keep you fuller for longer, and support recovery without added sugar or artificial preservatives.

How much caffeine does it contain?

Each 300 ml can contains 160 mg of caffeine (53 mg per 100 ml), roughly equivalent to a strong cup of coffee.

When should I drink Protein Rx Energy?

Enjoy it pre-workout to boost focus and performance, midday for a clean energy lift, or post-workout to support recovery with added protein and amino acids. Always serve chilled.

Is it sugar-free?

Yes, it’s completely sugar-free and contains zero carbs, making it an ideal low-calorie option for clean energy and protein support.

What makes the protein blend special?

Protein Rx Energy uses whey protein isolate, hydrolysed collagen peptides and BCAAs to deliver a high-quality, fast-absorbing protein source — supporting muscle health, satiety and recovery.

How does it support mental performance?

The caffeine + L-theanine combination enhances focus and alertness, while B vitamins (B6 and B12) contribute to normal energy metabolism and help fight fatigue.

Are there any artificial colours, flavours or preservatives?

No. Protein Rx Energy is free from harmful or artificial ingredients, colours and preservatives.

How should I store it?

Store in a cool, dry place. Once opened, refrigerate and consume within 24 hours.

Can Protein Rx Energy replace my pre-workout supplement?

Yes. It’s formulated with natural caffeine, L-theanine, and B vitamins to deliver clean energy, mental focus and physical performance support, making it an ideal pre-workout choice.

Does Protein Rx Energy help with recovery?

Definitely. With 10 g of protein per can, 2 000 mg of BCAAs, and hydrolysed collagen peptides, it helps support muscle recovery, joint health, and reduced post-workout fatigue.

Is it safe to drink more than one can a day?

We recommend limiting your intake based on your caffeine sensitivity. Each can contains 160 mg of caffeine, so factor that into your total daily caffeine consumption.

Is it suitable for low-carb or keto lifestyles?

Yes. It has zero sugar and zero carbs, making it a great fit for low-carb or ketogenic diets.

Does it contain any allergens?

Protein Rx Energy contains dairy (whey protein isolate). If you have dairy sensitivities or allergies, check with your healthcare professional before consuming.

What makes it “clean energy”?

Protein Rx Energy is designed to support performance without the harsh stimulant overload found in many traditional pre-workouts. Instead of relying on excessive synthetic stimulants and sugar crashes, it uses plant-based extracts and functional ingredients to promote smoother energy, better focus and sustained performance — helping you train hard without feeling burnt out afterwards.

Didn’t find your answer?

Don't hestitate to contact us