Apex Formulas Muscle Juice

Apex Formulas  Muscle Juice

Apex Formulas Muscle Juice

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Muscle Juice – Intra-Workout Hydration & Muscle Support

Hydration Meets Muscle Preservation.


Muscle Juice is a premium hydration and intra-workout formula designed to keep your body performing at its peak while helping to preserve lean muscle and maintain optimal electrolyte balance.


With 60 servings per tub (2 servings a day recommended), it’s built to provide continuous support for training and recovery, ensuring your body has what it needs before, during, and after the hardest sessions.


What is This Product For?

  • Preserve lean muscle mass during training or in calorie deficits

  • Improve recovery between sessions

  • Maintain hydration and electrolyte balance

  • Enhance nutrient delivery during training for better performance outcomes

  • Support long-term muscle health in both athletes and general fitness enthusiasts


Why This Product Exists

Many athletes turn to EAA (Essential Amino Acid) powders thinking they are the gold standard for muscle support. The truth is: if you are eating at calorie maintenance or in surplus, your body already has a rich amino acid pool from your diet. The actual trigger for Muscle Protein Synthesis (MPS) is Leucine — the king amino acid. This is why Muscle Juice delivers a huge, clinically relevant dose of leucine across two daily servings.

Paired with HMB, one of the most underrated and potent muscle-preserving compounds in sports nutrition, plus Betaine for power and performance, Muscle Juice is a smart, functional formula — not a vanity blend.

Instead of buying a separate hydration product and an EAA/intra-workout product, Muscle Juice combines both into one cost-effective, powerhouse formula.


Ingredient Breakdown (Per 13g Serving)

(60 Servings Per Tub — 2 Servings Daily Recommended)

L-Leucine – 2,000mg (4,000mg Daily)

The key amino acid responsible for triggering muscle protein synthesis (MPS). Without adequate leucine, your body won’t initiate the repair and rebuilding process. This dose ensures your muscles get the activation signal they need every single day.

HMB (Calcium Anhydrous) – 2,000mg (4,000mg Daily)

A metabolite of leucine, HMB significantly reduces muscle protein breakdown, accelerates recovery, and supports lean mass preservation. Ideal for both athletes in hard training and those in calorie deficit. Often overlooked, but hugely effective.

Betaine Anhydrous – 1,250mg (2,500mg Daily)

Boosts power output, supports cellular hydration, and aids muscle endurance. Works synergistically with creatine and electrolyte support.

Himalayan Rock Salt – 1,282mg

Provides natural sodium for optimal muscle function and hydration. Essential for replacing electrolytes lost in sweat.

Potassium Citrate – 300mg

Supports muscle contraction, hydration, and nerve signaling.

Calcium Citrate – 150mg

Bone health, muscle function, and overall electrolyte balance.

Dicalcium Phosphate – 150mg

Provides both calcium and phosphorus for skeletal health and energy production.

Aquamin® (Mg Citrate) – 40mg

A natural, highly bioavailable magnesium source that aids in muscle relaxation, cramp prevention, and recovery.


Why Choose Muscle Juice?

  • 60 servings per tub — enough for a full month at the optimal 2 servings/day dose.

  • Covers both hydration and muscle support in a single product — no need to double-buy.

  • Evidence-based dosing on leucine, HMB, and betaine — no underdosed “label decoration.”

  • Functional, athlete-focused formula designed for performance and recovery, not just flavour.



Muscle Juice replaces overhyped EAA blends with science-backed ingredients that actually matter. If you want to keep your muscles primed, your body hydrated, and your wallet happy — this is your go-to intra-workout and daily muscle support formula.

→ Muscle Juice: Hydrate. Perform. Preserve.

Delivery Terms & Conditions / Options & Info

Operated by Nutrition & Internet Supplements Limited (trading as NI Supplements). Last updated: 13 October 2025

Cut-off & processing: Orders placed before 1 p.m. (UK time) are processed the same working day. Courier networks operate Monday–Saturday (excluding Bank Holidays). Delivery times below exclude Sundays unless stated.

UK Mainland (excluding Highlands & Islands)

Orders under £50

Service Price Speed Notes
1–2 Day Delivery (No Signature Required) £2.95 Fully tracked; 91% delivered next day if ordered before 1 p.m. (excl. Sundays) Photographic & GPS delivery proof confirms delivery. Non-delivery claims are investigated; parcels confirmed delivered by Royal Mail are not eligible for replacement.
1–2 Day Delivery (Signature Required) £3.35 Fully tracked; 91% delivered next day if ordered before 1 p.m. (excl. Sundays) Signature required at delivery.

FREE delivery on orders over £50

Service Price Speed Notes
4–5 Day Delivery (No Signature Required) Free Fully tracked (excl. Sundays) Terms for “No Signature Required” (photo/GPS proof) apply.
4–5 Day Delivery (Signature Required) Free Fully tracked (excl. Sundays) Signature required.

Reminder: Selecting “No Signature Required” means your parcel may be left at your address or a designated safe location without a signature, with photo/GPS proof used to confirm delivery.

UK Mainland (excluding Highlands & Islands)

Orders under £50

Service Price Speed Notes
1–2 Day (No Signature) £2.95 Tracked; 91% next-day before 1 p.m. Photo/GPS proof confirms delivery; confirmed deliveries not eligible for replacement.
1–2 Day (Signature) £3.35 Tracked; 91% next-day before 1 p.m. Signature required.

FREE on £50+

Service Price Speed Notes
4–5 Day (No Signature) Free Tracked Photo/GPS proof terms apply.
4–5 Day (Signature) Free Tracked Signature required.
Northern Ireland
Service Price Speed Notes
Free on £50+ Free 2–3 working days Tracked
Express (No Signature) £1.99 Next-day before 1 p.m. Photo/GPS proof
Express (Signature) £2.49 Next-day before 1 p.m. Signature required
Ireland
Service Price Speed Notes
Free on £70+ Free 2–4 working days Tracked; order before 1 p.m.
Reduced Rate on £50+ £2.99 1–2 working days Parcelforce/GLS; tracked
Express under £50 £4.99 Next-day before 1 p.m. Tracked; Mon–Fri dispatch
Standard under £50 £4.99 1–2 working days Parcelforce/GLS; tracked
EU & International

Rates shown at checkout.

Customs: Customs delays are outside our delivery times and not our responsibility; we cannot contact customs to expedite.

General Delivery Terms

  • No Signature Required: By selecting this option you agree your parcel may be left at the delivery address or a designated safe location without a signature. Photographic and GPS proof from the courier confirms delivery. Claims of non-delivery will be investigated, but parcels confirmed delivered are not eligible for replacement.
  • Signature Required: A signature will be obtained at delivery; choose this for added security.
  • Same-day dispatch (express): Guaranteed for orders placed before 1 p.m. Courier delays can occasionally occur.
  • Working days: Processing Mon–Sat (excl. Bank Holidays). Deliveries do not include Sundays unless stated by the service.
  • Cut-off: Orders after 1 p.m. are processed the next working day.

Failed Delivery & Returns to Sender

If an order is returned due to customer error (e.g., failure to take delivery or arrange collection/redelivery), a re-shipping fee applies. Alternatively, a refund of the item price minus our shipping costs can be provided. If the error is ours, we will re-ship at our expense.

Questions about shipping?

For queries on shipping times and order status please email hello@nisupplements.com.

Nutrition & Internet Supplements Limited (trading as NI Supplements)
Unit 5, Graham Industrial Park, Dargan Crescent, Belfast, Co Antrim, BT3 9LP, United Kingdom

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