Billy Harris · TENNIS PLAYER · In his own words

8 reasons why I recommend IM8

Not our pitch. Billy's. The real story of why Billy Harris recommends IM8.

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Generic tennis player competing on an outdoor court

A note from Billy

Nothing in my career was handed to me — I worked my way up through the tour the long way. When you've earned every ranking point the hard way, you don't get careless with the basics. Here are the eight reasons I recommend IM8.

Clinicians' Choice
01Where it started

I use the product every single day.

Generic tennis player in match action

Tennis is a sport measured in single points. I can't control the draw, the surface, or the guy on the other side of the net. What I can control is how I arrive: rested, fuelled, sharp. That part is on me. So I started treating my daily nutrition as seriously as I treat my hours on the practice court, because both are inputs I actually own. IM8 became one of them — one daily drink that covers what my body needs, so I'm never the reason a match slips away in a final set.

“Nothing in my career was handed to me — I worked my way up through the tour the long way. When you've earned every ranking point the hard way, you don't get careless with the basics.”

— Billy
90 daysthe daily routine I rely on
And for you

You don’t need a professional career to start. You need one decision and ninety days of showing up.

02The long game

I'm building a body that has to last.

Billy Harris with IM8 during tennis player training

It took me years of grinding to get where I am, and I plan to stay for a long time. That means treating my body like the asset that got me here. IM8 is part of how I protect it — this season and well beyond.

5for the long run
And for you

You don’t need a professional career to invest in the long run. The small things you control every day quietly add up.

03I can't afford to get this wrong

It's NSF Certified for Sport.

IM8 with NSF Certified for Sport certification

I compete at the top of professional tennis, which means I'm subject to anti-doping testing like every other athlete at this level. One contaminated supplement could end the career I've spent my whole life building. I'm not allowed to guess what goes into my body — and I wouldn't want to. IM8 is NSF Certified for Sport and WADA-compliant. Every batch is screened against the strictest standards there are. For me, that's not a marketing line; it's the one reason I'd ever put my name on something I actually swallow.

NSF · WADAtested to the strictest standards in the world
And for you

If it’s clean enough for drug-tested professional sport, it’s clean enough for you and your family.

04Simplicity that lasts

It replaced a cabinet full of bottles.

A pile of supplement bottles versus one IM8 sachet and a glass of water

I used to travel with a pharmacy. Different pills for energy, for gut health, for immunity, for recovery — half of which I'd forget to take anyway. It was a mess. IM8 is one sachet. 90+ ingredients, nine organ systems, one glass of water in the morning. It took the most important habit in my day and made it the easiest one.

1 sachetreplaced everything I used to carry
And for you

Nobody — athlete or not — sticks with a routine that needs 16 bottles. Simple is what actually lasts.

05How I feel

Steady energy match after match.

Generic tennis player striking the ball

The matches that get away are the ones lost late in a final set, when the energy dips and the serve percentage drops. What I want on court — and on a long working day away from it — is energy that's steady rather than spiky, so it's still there in the moment it matters most. That's what IM8 supports: clean, sustained energy that holds through the hardest stretch instead of crashing right when it counts.

0energy that holds when it matters
And for you

A long race or long day — steady energy that lasts will always beat a spike and crash.

06The one constant

It travels everywhere I do.

Generic tennis player training on court

The tour is relentless: qualifying one week, main draw the next, a different country almost every Monday. So much of this job is staying in motion and still being ready the moment the first serve goes up. IM8 is one of the few things that never changes. A sachet goes in my bag and the routine comes with me — London, Melbourne, Indian Wells, it doesn't matter. It's the constant that keeps my body feeling like mine, whatever time zone I wake up in.

30+the routine that travels with me
And for you

Your routine should travel with you, wherever you are headed.

07Where recovery is won

It's how I recover and sleep.

Generic tennis match in progress

A tournament run is brutal on the body — long matches on back-to-back days, each one at full physical commitment. Then you do it all again the next day, in the next round. The ones who last aren't just the biggest servers; they're the ones who recover well enough to do it again. IM8 is part of how I recover and how I sleep. Better sleep and a faster bounce-back is where the next result is quietly won — and recovery is the half of this sport that nobody at the top is allowed to skip.

Deeper sleepthe recovery that makes tomorrow possible
And for you

Whether you’re chasing a title or chasing your week, you’re only ever as good as how well you recover.

08What I stand behind

I put my name behind it.

Generic tennis player during a rally

I'm careful about where I attach my name. I recommend IM8 because I believe in where it's going: co-founded with David Beckham, built with a world-class scientific team, and held to a standard I'd actually stake my reputation on. You don't put your name behind something you don't use. I use it every single day.

Every daya recommendation built on daily use
And for you

The standard for a recommendation should be simple: use it, believe in it, stand behind it.

Trusted by the world's best

Athletes. Doctors. 48M+ servings delivered. They all drink IM8.

David Beckham

David Beckham

Co-Founder of IM8 Health

Giannis Antetokounmpo

Giannis Antetokounmpo

NBA Champion

2× MVP & 10× NBA All-Star
Aryna Sabalenka

Aryna Sabalenka

World No. 1 Tennis Player

4× Grand Slam Champion
Billy Harris

Billy Harris

Tennis Player

Tennis Player
Dr. Dawn Mussallem

Dr. Dawn Mussallem

CMO of Fountain Life & Founder of Mayo Clinic Integrative Oncology Program

Mayo Clinic Integrative Oncologist
What I take every morning

The exact stack in my bag.

Daily Ultimate Essentials

Billy's daily ritual

Daily Ultimate Essentials

90+ premium ingredients in one daily drink — co-founded with David Beckham and developed with a world-class scientific advisory team.

90+Ingredients
9Organ systems
NSFFor Sport
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This is for you, too

You don’t have to be a professional athlete

My life looks nothing like yours, and that’s the point. The schedule, the travel, the pressure — different. But what IM8 actually does is universal: steady energy, an easier routine, a body that recovers. You don’t need my career to feel that. You just need to start.

If you're an everyday person

  • Trade ten forgotten bottles for one morning ritual.
  • Steady energy that gets you through the day — and the evening with your family.
  • Clean enough that you never have to wonder what's in it.

If you're an active individual

  • The same recovery and gut support I rely on between sessions.
  • NSF Certified for Sport — train and compete with total confidence.
  • One constant that travels with you to every race, gym, and trip.

48M

Servings delivered

299

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One last thing from Billy

I'm careful about where I attach my name. I recommend IM8 because I believe in where it's going: co-founded with David Beckham, built with a world-class scientific team, and held to a standard I'd actually stake my reputation on. You don't put your name behind something you don't use. I use it every single day.

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— Billy Harris

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results vary.

Daily Ultimate Essentials is manufactured in a GMP-certified facility and is NSF Certified for Sport. The finished product is third-party tested for purity and label accuracy. Talk to your healthcare provider before starting any new supplement, particularly if you are pregnant, nursing, or taking prescription medication.

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