Your cart is empty

Kingslayer Pre Workout

Step into your throne of dominance with Kingslayer Pre-Workout Powder, the ultimate high-stimulant formula designed to support with strength, endurance and mental sharpness.

Save 10% with code PERFORM10

Offer valid until 4th May Midnight.

£34.99 GBP

Flavour: Frozen Blue Ice

Size: 30 Servings

30 Servings 60 Servings 90 Servings

Kingslayer Pre Workout

£34.99 GBP

Product Information

Fuel your body and mind with Pure Labs Kingslayer! Our high-stimulant pre-workout formula is designed to support workouts, aiding with strength, endurance and mental awareness.

Experience the benefits of Pure Labs Kingslayer, packed with a range of key ingredients to deliver explosive energy, heightened focus, and unrelenting endurance.

How To Take

Regular Users: Mix one scoop with 240ml water and consume 20 minutes before a workout.

Inexperienced Users: Mix 1/2 scoop with 240ml water and consume 20 minutes before a workout.

Nutritional Information

Serving Size: One scoop (15g)
Servings Per Container: 30

Amount Per Serving:
L-Citrulline: 6000mg
Beta Alanine: 3200mg
L-Tyrosine: 1000mg
Lion's Mane Mushroom: 350mg
Citicoline: 500mg
Caffeine: 400mg
Eria Jarensis: 300mg
Juglans Regia (English Walnut): 200mg
L-Theanine: 200mg
Pink Himalayan Salt: 75mg
Black Pepper Extract: 5mg

Fuel your body and mind with Pure Labs Kingslayer! Our high-stimulant pre-workout formula is designed to support workouts, aiding with strength, endurance and mental awareness.

Experience the benefits of Pure Labs Kingslayer, packed with a range of key ingredients to deliver explosive energy, heightened focus, and unrelenting endurance.

Pairs Well With

Not sure? Shop by your Goal

MUSCLE & STRENGTH

ENERGY & PERFORMANCE

HEALTH & WELLBEING

RECOVERY & WEIGHT LOSS

Frequently Asked Questions

All of our supplements are manufactured in our specialist facility in the UK, if you've got a question about our products, we've got the answer.

What is a Pre Workout?

A pre-workout supplement is a dietary product designed to be consumed before exercise, aiming to enhance athletic performance.

While formulations vary, the overall goal is to optimise workout effectiveness by providing a temporary performance edge.

How much Pre Workout should I take?

The appropriate amount of pre-workout supplement to take varies significantly depending on the specific product, individual tolerance, and personal goals.

Because pre-workout formulations can be potent, especially regarding stimulants like caffeine, beginning with a half-dose allows you to assess your sensitivity and avoid potential adverse effects like jitters, nausea, or rapid heart rate.

Gradually increase the dosage only if needed and tolerated, and never exceed the maximum recommended serving.

How long does Pre Workout last?

The duration of pre-workout effects varies depending on the specific ingredients, individual metabolism, and dosage.

Typically, the stimulating effects of caffeine, a common pre-workout ingredient, can last for three to six hours.

Other ingredients, like beta-alanine or creatine, have effects that build up over time with consistent use rather than providing an immediate, short-lived boost.

Therefore, while you might feel the peak energy and focus within 30-60 minutes of consumption, the overall effects on performance and muscle function can extend beyond that timeframe.

How will my order be packaged?

Your order will be packaged carefully to ensure it arrives safely and in good condition. We use a variety of packaging methods depending on the specific items you've ordered. This can range from sustainable paper pouches to recyclable BPA free plastic bottles.

We strive to use the most appropriate and environmentally friendly packaging materials possible while still ensuring your order's safety. If you have any specific packaging requests, please let us know when you place your order, and we'll do our best to accommodate them.

When will I receive my order?

UK Mainland Customers
Royal Mail: 2-3 working days.
DPD: One working day.

USA Customers
USPS: 4-6 working days.

International Customers
FedEx: 3-7 working days.
National Mail: 7-12 working days.

For more information, please check our Shipping Policy.

Can I amend or cancel my order?

Please get in touch with us via email at sales@pro-hormones.co.uk to discuss any amendments or cancellations.

Customer Reviews

Customer reviews on this site reflect personal experiences and opinions, and do not represent claims made by Pro-Hormones.

Kingslayer Pre Workout

This is Kingslayer, the pre-workout from Pure Labs. This is a 30 serving product with each serving size at 15 grams. The flavor is Summer Solstice which from my best guess has notes of tropical fruits. A little hard to pin down but still enjoyable. Going over the formula, you get 6 grams of L-Citrulline, 3.2 grams of Beta Alanine, 1 gram of L-Tyrosine, 500mg of Citicoline, 400mg of Caffeine Anhydrous, 350mg of Lion’s Mane Mushroom, 300mg of Eria Jarensis, 200mg of Juglans Regia, 200mg of L-Theanine, 75mg of Pink Himalayan Salt and 5mg of Black Pepper Extract. The dosages of Citrulline and Beta Alanine are standard amounts you’ll commonly find in pre-workouts and these are not the shining stars of the formula. That designation is for the stimulants and energy components. And they certainly play out nicely with this one. You get a very big mood boost that hits shortly after taking a serving. It puts you in a very positive state of mind where you are really happy to train. You feel very alive and awake along with feeling clear headed. It borders on feeling euphoric but I wouldn’t quite go that far. It is just a very smooth energy hit where your mind feels clear and focused. Zero side effects and the energy component wasn’t too much at all. It really plays out so nicely and if you are looking for a type of pre-workout that really promotes a mood boost, this is one worth using. At 30 servings, it’s a great value for money as well. You could add on a pump product to this if you’d like as again, this isn’t the product’s strongest area. But without a doubt, I would recommend this one and give it my seal of approval.

Great Product

I decided to try this pre workout as i have been taking PR3 which is a great product.
I purchased the Summer Solstice flavour, it is pleasant, but prefer the PR3 Ultimate flavour. If the Frozen Blue Ice flavour is available, next time i order Kingslayer i will try it.
I take the pre-work before and during a deadlift session, and have hit my goals each time, feeling focused and determined.
I would definitely recommend this product to anyone considering trying it.

What Makes Us Different

We are a trusted UK-based supplements company that has manufactured premium quality products to GMP standards since 2008. Prohormones specialises in delivering 100% natural muscle building, performance enhancing and health boosting supplements.

Our nutrition and production team are dedicated to developing hygienic, effective, and highly dosed supplements. All of which are formulated to assist your health and performance goals using only the finest ingredients, to deliver the most advanced formulas nutritional science has to offer.

Uncompromising Quality

What sets Prohormones apart is our unwavering commitment to quality. We understand your health is paramount, & we believe in providing supplements that are genuinely clean & effective.

Science Backed Solutions

Through rigorous research & development our formulations are rooted in the latest scientific advancements.

Customer Centric Approach

Our customers are at the heart of everything we do. We prioritise your well-being & satisfaction above all else. You're not just purchasing supplements; you're investing in a partnership that promotes your overall vitality.

What Makes Us Different

Uncompromising Quality

What sets Prohormones apart is our unwavering commitment to quality. We understand your health is paramount, & we believe in providing supplements that are genuinely clean & effective.

Science Backed Solutions

Through rigorous research & development our formulations are rooted in the latest scientific advancements.

Customer Centric Approach

Fast Shipping

Fast UK Shipping With Reliable Couriers

Customer Service

Contact Our Supplement Experts By Email

Secure Payment

Check Out With Confidence With Trusted Payment Gateways