THE COMPLETE STACK5 full-size products
Hydrate Hydrate
Creatine Monohydrate Creatine Monohydrate
Berserker Focus Berserker Focus
EAAX V2 EAAX V2
Magnesium+ Magnesium+

BUILT FOR MORE THAN ONE SPORT

Hybrid Athlete Stack

Hybrid Athlete Stack

Train beyond one lane.

Five formulas for athletes who lift, run, and keep adding to the challenge. Hydration, daily creatine, caffeinated focus, essential aminos, and evening support in one order.

Regular price $167.36 USD
Regular price $185.95 USD Sale price $167.36 USD
Save $18.59 per stack5 full-size products
How the savings add up

Current standalone total: $185.95. Based on current one-time prices before additional discounts, shipping, or tax.

Hydrate Flavor
Berserker Focus Flavor
EAAX Flavor
View full details

BUILT AROUND YOUR GOALS

A routine that follows the whole training week.

01

Cover the daily foundations

Hydrate and Creatine Monohydrate bring electrolyte replacement and a consistent creatine habit to the days between your hardest sessions.

02

Bring your attention to the work

Berserker Focus is the caffeinated, focus-first option for selected workouts. Use it deliberately instead of relying on it for every session.

03

Think beyond the workout

EAAX V2 adds essential amino acids and joint ingredients. Magnesium+ gives the evening routine a defined place in the plan.

HYROX + CrossFitStrength + enduranceKettlebells + jiujitsu

EVERY PRODUCT HAS A JOB

Here’s what arrives.

One full-size container of every product below. Explore the individual pages for complete formulas, labels, and directions.

Hydrate01

ELECTROLYTE REPLACEMENT

Hydrate

1,000mg sodium per scoop

Pink Himalayan salt, magnesium glycinate, taurine, and coconut water powder for a deliberate hydration routine.

1 full-size tub
Standalone price: $49.99
Supply at the stated serving
30 days at 2 scoops daily
How and when to use it

Hollow suggests 1 scoop first thing in the morning before coffee, pre-workout, or a meal, and 1 scoop during training. Mix each scoop into 24 oz of water. Match intake to your activity and sodium needs.

View product & full label
Creatine Monohydrate02

DAILY STRENGTH FOUNDATION

Creatine Monohydrate

5g creatine per scoop

One ingredient for a consistent creatine routine that supports repeated high-intensity training.

1 full-size tub
Standalone price: $24.99
Supply at the stated serving
30–60 days at 1–2 scoops daily
How and when to use it

Take 1–2 scoops daily. Anytime works; consistency matters more than timing. Hollow’s preference is before training. Count any creatine already included in other products.

View product & full label
Berserker Focus03

CAFFEINATED FOCUS FORMULA

Berserker Focus

20 full-scoop workouts

A focus-first pre-workout for the sessions that demand your attention as much as your effort.

1 full-size tub
Standalone price: $39.99
Supply at the stated serving
20 full scoops or 40 half scoops
How and when to use it

Experienced users: 1 scoop in 10–12 oz of water before training. New users: start with ½ scoop as directed on the label. Avoid close to bedtime and do not combine with other caffeine or stimulants.

View product & full label
EAAX V204

AMINOS + JOINT INGREDIENTS

EAAX V2

All 9 essential amino acids

A full essential amino acid profile alongside collagen, glucosamine, cissus, and MSM.

1 full-size tub
Standalone price: $44.99
Supply at the stated serving
30 servings per tub
How and when to use it

Mix 1 scoop in 20–30 oz of water daily, following the label. Fit it around training or another consistent time. Contains bovine collagen; check the label for coconut and shellfish allergens.

View product & full label
Magnesium+05

EVENING ROUTINE SUPPORT

Magnesium+

200mg elemental magnesium

Magnesium glycinate with 200mg L-theanine per serving, plus the other nutrients listed on the full label.

1 full-size bottle
Standalone price: $25.99
Supply at the stated serving
30 days at 4 capsules daily
How and when to use it

Take 4 capsules daily with water, following the label. Evening is a convenient time to build the habit. Account for magnesium in your other supplements.

View product & full label

MAKE YOUR CHOICE COUNT

Full-size formulas. One clear plan.

This is the broad middle ground between a pre-workout-only order and an eight-product stack. Five clear roles cover the training day and the habits around it, with all product amounts available before you buy.

Choose your stack options

FROM PEOPLE WHO USE THE PRODUCTS

The products. Their experience.

Selected excerpts from customer reviews of products included in this stack. These are product reviews, not reviews of the complete bundle.

Review of Hydrate

The salted tangerine flavor is unbelievable. Definitely recommend this flavor and this product.

CLAY COLLUMVerified buyerReview collected via store invitation. Review earned a reward for future purchase.
Read the full product reviews

Review of Creatine Monohydrate

Will continue to purchase from Hollow Labs. Also, outstanding customer care and service. Thanks.

Brian WatkinsonVerified buyerReview collected via store invitation. Review earned a reward for future purchase.
Read the full product reviews

Selected customer reviews. Individual experiences and results vary.

When to use it

Make it part of your day.

01

START THE DAY

Build the repeatable habits

Take the first Hydrate scoop before coffee, pre-workout, or a meal. Keep Creatine Monohydrate at 1–2 scoops daily; timing is flexible and consistency comes first.

02

TRAINING

Use what the session needs

Berserker Focus belongs before selected sessions, following the label and without other stimulants. Take the second Hydrate scoop during training. Fit EAAX V2 around the session as directed.

03

EVENING + REST DAYS

Keep the foundation steady

Use Magnesium+ at a consistent daily time; evening is convenient. Keep your creatine habit on rest days. Caffeinated pre-workout is for the sessions you choose, away from bedtime.

These steps organize the products by role. Follow each label and your individual guidance; buying a bundle is not an instruction to take all products together.

FOUNDER LED. PERSONALLY ACCOUNTABLE.

Built by someone who knows both sides.

Before building Hollow Labs, Allen Collins owned supplement stores. The questions customers asked then still shape the brand: what’s in it, how much do I take, and why is it worth buying?

We put the formulas where you can inspect them, explain where each product fits, and stay reachable when you need an answer.

What Hollow stands for
HOLLOW LABSSEEK ADVERSITY.Ask the Hollow team

Your questions

Know before you stack.

Ask the Hollow team
What exactly will I receive?

You receive one full-size retail container of every product shown in “What’s included.” Choose from the flavor options available above before adding the stack to your cart.

Will the whole stack last the same amount of time?

Not necessarily. Containers have different serving counts, and daily products can run out sooner than products used only for selected workouts. Each product card shows its supply at the stated serving.

Can I choose my flavors or swap products?

Choose the available flavor options in the selectors above. The products in each stack are fixed; open an individual product page if you prefer to build a different order.

Is it just for runners or HYROX athletes?

No. It is for adult athletes combining disciplines: lifting, running, CrossFit, kettlebells, jiujitsu, or endurance sports. The routine is organized by product role rather than one sport.

Can I train late with this stack?

Hydrate, Creatine Monohydrate, EAAX V2, and Magnesium+ have no added caffeine listed. Berserker Focus contains caffeine and other active ingredients; avoid it close to bedtime.

Do I need another creatine or electrolyte product?

This stack already includes Creatine Monohydrate and Hydrate. Account for those servings, plus the minerals in other formulas, before adding more products.

How do shipping and returns work?

Free shipping applies to orders of $75+ after discounts, with eligibility confirmed at checkout. See our return policy for the 30-day return process and terms.

BUILT FOR MORE THAN ONE SPORT

Build a routine as versatile as your training.

Choose your stack options

Full-size products. Current bundle price. One order.

These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

FREE SHIPPING ON ALL ORDERS OVER $75