DymatizeISO100 Hydrolyzed Whey Protein Isolate

Overview

Dymatize ISO100 uses hydrolyzed whey protein isolate: whey filtered to strip out most lactose, fat and carbs, then partially broken into smaller peptides for fast digestion. Per scoop you get 25 g of protein, 5.5 g of BCAAs including 2.6 g of leucine, 120 calories or less and 1 g of sugar or less. Dymatize labels it banned-substance tested, and major retailers list it as Informed Choice certified. Flavored versions are sweetened with sucralose and contain soy lecithin.

What reviewers say

The consensus from dietitians, coaches and taste-testers is that this is one of the best-tasting isolates you can buy. Fruity Pebbles, Cocoa Pebbles and Gourmet Chocolate earn repeat praise, although a few TikTok reviewers find Fruity Pebbles very sweet. The powder is extremely fine and mixes into a thin, slightly frothy shake in water. Garage Gym Reviews calls it delicious and recommends it to anyone prioritizing protein with minimal carbs or fat, while coach Dr. Marc Morris devotes part of his review to who should skip it, since you are paying extra for the hydrolyzed isolate.

Who it's for

Lifters in a cutting phase who want maximum protein per calorie, people who feel bloated on concentrate-heavy blends, and tested athletes who want a certified product with a deep flavor menu. It also suits anyone who prefers a light, juice-thin shake after training rather than a thick, milkshake-style drink.

Bottom line

If you want an isolate that genuinely tastes good, ISO100 is the safe bet. At about $1.55 per serving for the 5 lb tub, it costs more than blends, but you get cleaner macros and very low lactose for the money.