ONE OF ONE Is Exactly What You’d Expect From Floyd Mayweather

Let’s get this out of the way: Floyd Mayweather has officially thrown his gloves into the supplement game. Because obviously, the world desperately needed another line of hyper-marketed powders promising to transform our dad bods into Greek sculptures. Enter ONE OF ONE—a line of performance supplements named as humbly as you’d expect from the man who once tried to trademark “TBE” (The Best Ever).

I got my hands (and taste buds) on the full trio: Peptide Builder Capsules, Greens + Gut Health, and Sport Pre-Workout. Here’s what happened, besides me aggressively refreshing my reflection in the mirror hoping to see biceps appear.

Peptide Builder Capsules

First up: Peptide Builder. The brand positions this as a muscle-support supplement built around PeptiStrong® and DL185™. Those ingredient claims are part of the product’s marketing, so I treated this as a taste-and-use test rather than proof of a specific body-composition result.

After a week of taking them, I did feel… vaguely more muscular. Or maybe I was just bloated from the pizza. Hard to say. The useful part was simpler: the capsules were easy to take, didn’t taste like sidewalk chalk, and fit into a routine without much effort.

Greens + Gut Health

Next up: Greens + Gut Health. You know the type. It’s that daily scoop of virtue you mix into water and pretend tastes great. ONE OF ONE offers flavors including pineapple, mixed berry, and lemon iced tea. I opted for pineapple, because if I’m going to dislike something, I’d rather it disappoint me with tropical flair.

I won’t lie—it’s not the worst greens powder I’ve tasted. The flavor does its best to mask the “fresh-mowed-lawn-meets-vitamins” vibe. But there’s still that faint whisper of compost. You just… can’t escape it.

The formula includes fruit-and-vegetable ingredients, antioxidants, and prebiotic fiber according to the product positioning. My own experience was mostly about taste and how easy it was to work into the day; anyone with specific digestive or nutrition concerns should judge the ingredient list for themselves.

Sport Pre-Workout

Last, but certainly not subtle, is the Sport Pre-Workout. I chose Blue Razz Cotton Candy because I am a grown adult with refined taste, obviously.

This was the most noticeable product in the trio from a subjective-use standpoint. I felt more alert during my workout, though individual reactions to pre-workout formulas and stimulants can vary. If you are sensitive to caffeine or similar ingredients, the label matters more than my enthusiasm.

ONE OF ONE Review Verdict

ONE OF ONE is, ironically, not unlike the many performance-supplement brands competing for attention online. But here’s the kicker—it’s surprisingly decent from a usability and flavor standpoint. The branding is intense, the formulas are ambitious, and each product has a distinct purpose in the lineup.

Will it turn you into Floyd Mayweather? No. Supplements are not a substitute for training, diet, sleep, or professional medical advice. But if the formulas fit your needs and you like the flavors, there are some practical options here.

So, are these truly ONE OF ONE? No. But they are… not bad. Which, in supplement terms, is practically a gold medal.

For more options in this category, see our high-protein nutrition products guide.